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8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 128
The widest offer of thermal acoustic and fire insulations
ISOVER for Technical InsulationsInformation for designers and assembly companies
Technical Insulations
8122019 Catalogue of Technical Insulations 2013-10-598 En
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TABLE OF CONTENT
TABLE OF CONTENT 983090
PROPERTIES OF ISOVER PRODUCTS 983091BASIC FUNCTIONS OF TECHNICAL INSULATIONS 983093
HEAT FLOW TRANSMISSION 983094
INSULATION SYSTEM DESIGN 983095
General 7
Insulation thickness calculation 7
Insulation desigh criterion 7
Parameters influencing insulation thickness design 7
Economic thickness 7
Maximum service temperature 9
FIRE PERFORMANCE 983089983088
FIRE PROTECTION DESIGN FOR VENTILATION DUCTS 983089983089
Legislation 11
Maximum duct sizes 11
ACOUSTIC PERFORMANCE 983089983090
Sound Absorption 12
Absorptive structures 13
Acoustics insulations 13
GENERAL RULES FOR USING ISOVER INSULATIONS 983089983092
APPLICATION OF TECHNICAL INSULATION 983089983093
Piping insulation 15
Ducting insulation 17
Fire protection of ventilation ducts 18
Technological appliance insulation 20
Boiler insulation 20
Chimney insulation 20
ISOVER PRODUCTS FOR TECHNICAL INSULATIONS 983090983089
OVERVIEW OF TECHNICAL INSULATION APPLICATION 983090983094
TECHNICAL INSULATION PROPERTIES 983090983095
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Mineral wool insulation Isover is made from the earthrsquos
most abundant materials rock sand and minerals of
various types The production is based on fiberizingof molten raw materials consisting of minerals and
different amounts of artificial resins Mineral wool
insulation materials are delivered as wired mats lamella
mats slabs blocks pipe sections and felts Depending
upon the form of delivery mineral wool insulations can
be quilted on wire mesh faced with foils glass fleece or
glass filament tissue or be equipped with coatings
Final Isover products have the following properties
apparent density from 25 to 150 kgm3 (special fire
protection slabs can have density up to 200 kgm 3)
very good thermal insulation performance (low
thermal conductivity)
very good sound attenuation (high absorption
coefficient)
fire resistance ndash non-combustible material
high temperature resistance (possibility of application
up to a maximum surface temperature)
environmental friendly and hygienic
hydrophobisation ndash Isover insulation materials are
made water repellent
long life span (material is not aging)
resistant to wood-destroying pests rodents and
insect
easy to handle easy to cut with a sharp knife
The Isover product range provides fire safe thermal
and acoustic insulation solutions in many applications
including HVAC original equipment transport and
for tanks and storage vessels The range of high
quality products has been designed to be effective in
both performance and cost while providing ease of
installation Each product is engineered to fulfil specific
performance criteria Maximum surface temperature
(MST) is dependent on the apparent density (the
higher the density the higher MST and better thermal
performance at high temperature surfaces) Mineral woolinsulations have a melting point higher than 1000 degC
For outdoor application metal steel jacketing is
required If a product is with an aluminium facing then
the surface temperature must not exceed 100 degC on the
facing proper thickness of insulation must be designed
for this purpose Binders and greasing agents in mineral
wool products dissolve and evaporate in areas with
temperatures higher than 150 degC As the temperaturefalls in the direction of the insulationrsquos cold side the
binder remains unchanged in the greater part of the
material In the outer areas colder than 150 degC no
dissolution and evaporation take place
Isover is part of the Saint-Gobain group leaders in the
design production and distribution of materials for
the construction industrial and consumer markets
With a presence in over 50 countries the grouprsquos global
reach allows us to draw on unrivalled financial and
technological resources to meet the changing needs of
customers and communities in the 21st century In the
Czech Republic Isover has a modern stone wool plant in
Častolovice Trade Headquarters is in Prague Thermal
acoustic and fire protection insulations have been
produced in Častolovice for more than 40 years Our
company offers a complete range of insulation materials
from both stone and glass wool Thus we can offer you
the optimal product for any industrial application You
will find the best solution with us
PROPERTIES OF ISOVER PRODUCTS FROM MINERAL WOOL
2-3
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AS QUALITY
Corrosion of stainless steel surfaces under insulation
is an often discussed issue Highly alloyed austenitic
steel (alloyed by chrome nickel and molybdenum) are
predisposed to tensile stress corrosion (stress corrosion
cracking) which is caused by chloride ions Austenitic
is a description of crystalline steel structure therefore
identified as AS Chlorides with water (well-known
is classical salt) attack steel surface and cause cracks
in the material With increasing surface temperature
the danger of stress corrosion cracking is raised To
minimise this danger mineral wool insulations in AS
quality are available for this application Standard AGI
Q 132 determines maximum content of chloride ions of
10 mg in 1 kg of the insulation material Mineral woolinsulations may be used for insulating objects made
of stainless austenitic steels if the content meets the
requirement Isover stone wool technical insulations
meet the requirement of AGI Q 132
THERMAL CONDUCTIVITY
One of the most important parameters of insulations is
their thermal conductivity named lambda value λ [W
(mK)] Thermal conductivity measures the capacity of a
material to lead or to resist heat transfer The smaller
the lambda value the better the thermal insulation
The thermal performance of mineral wool is achievedthrough the entrapment of air within the material Its
thermal conductivity does not deteriorate over time
For slabs mats felts and loose mineral wool the
thermal conductivity is determined in the hot box
tester according to EN 12 667 The determination of the
thermal conductivity of sections is in the pipe tester
according to EN ISO 8497 For lamella mats and wired
mats the thermal conductivity is measured in the hot
box and in the pipe tester The thermal conductivity of
mineral wool insulations has to be determined up to the
maximum service temperature (hot face) as a function
of the mean temperature (arithmetic mean betweenobject and surface temperature)
The thermal conductivity varies with temperatures and
with densities The higher the density the higher the
thermal performance at high temperature surfaces In
our product data sheets declared lambda-values λD
are
used these values are fulfilled within every product
A designer will be on the safe side when using our
declared lambda-values That means allowances for
workmanship spacers and supporting constructions
are made Possible inaccuracies caused by calculation
equations can be eliminated
MELTING POINT OF MINERAL WOOL
PRODUCTS
The melting point of mineral wool is determined
according to DIN 4102 part 17 It is a parameter for
the durability of mineral wool insulations in building
components in case of fire It must not be confused
with the maximum service temperature and has no
relation to the service temperature Mineral wool
insulations have the melting point higher than 1000 degC
usually in the range from 1200 to 1600 degC
MAXIMUM SERVICE TEMPERATURE
Maximum service temperature according to EN 14 706
(for wired mats lamella mats and slabs) and EN 14 707
(for pipe sections) ranging from 250 to 700 degC MST for
various products can be found in a Product data sheet
or at the end of the catalogue in the chapter Isover
Products on page 23
FIRE RESISTANCE
Mineral wool products Isover are completely non-
combustible they resist to high temperatures and thus
prevent fire spread The classification levels according
to EN 13 501-1 are A1 possibly A2 for materials with
a facing
ACOUSTIC PROPERTIESIsover mineral wool products have a fibre structure
and therefore reach excellent noise attenuation for
example from HVAC services (pipework ductwork
and air handling equipment) and other services An
absorbent layer of mineral wool has the best absorption
capacity in the medium and high frequencies (under
such conditions it can have absorption coefficient up to
98 (α = 095)) The absorption in the low frequencies
is improved by increasing the thickness or by providing
an air gap behind the absorbent layer
RESISTANT TO BIOLOGICAL PESTSMineral wool insulation is resistent to wood-destroying
pests rodents and insects They are rot-proof and do
not sustain growth of mould
LOW THERMAL EXPANSION
Mineral wool insulations have almost zero thermal
expansion with changing temperatures
MOISTURE AND WATER REPELLENCE
All Isover products are treated during manufacture with
special additives which make them water repellent
Isover products are a hydrophobic non-hygroscopicinsulation material If Isover products get wet they
dry out quickly as a result of the open structure and its
mechanical and insulating properties are unaffected
after drying For outdoor application metal steel
jacketing is unconditional ly required
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BASIC FUNCTIONS OF TECHNICAL INSULATIONS
Insulations are defined as those materials which retard
the flow of heat energy by performing one or more of
the following functions
Energy conservation minimizing unwanted heat loss
gain from building HVAC systems as well as preserv-
ing natural and financial resources
Personnel protection controlling surface tempera-tures to avoid contact burns (hot or cold) ndash maximum
surface temperature criterion
Condensation control minimizing condensation by
keeping the surface temperature above the dew point
of surrounding air
Prevent internal condensation in pipes
Process control minimizing temperature change in
process fluids where close control is needed
Increase operating efficiency of heating ventilating
cooling plumbing steam process and power systems
found in commercial and industrial installations
Freeze protection minimizing energy required for
heat tracing systems andor extending the time to
freeze in the event of system failure Freeze protec-
tion of vessels and tanks with various accumulated
fluids or fuels
Noise control reducingcontrolling noise in mechani-
cal systems
Fire safety protecting critical building elements and
slowing the spread of fire in buildings
The application of thermal insulation on pipe vessels
and ducts is recognized as a necessary requirement in
any construction activity The thickness and extent of
insulation required has always been subject to arbi-
trary and imprecise decisions with little engineering or
economic input No material incorporated in a modern
construction project provides the owner with as good
a financial return throughout the life of the facility as
does insulation
The investment in insulation may protect the equip-
ment and personnel present during the life of the facil-
ity Proper insulation prevents condensation chemical
corrosion and excessive heat in fire hazard areas Added
human comfort provided by proper insulation in hotelsoffice buildings schools or factories adds considerably
to the value of the facility and productivity of its per-
sonnel Process temperatures in heat traced piping are
more efficiently maintained with proper insulation The
size of the heat generating equipment can be reduced
when designed with an efficient insulation system In
some cases insulation is essential to an industrylsquos very
existence as with the power the process and
the cold storage
However the most substantial return on an investment
in insulation is in energy savings over a period of timeThese savings are becoming more and more empha-
sized in the industrial insulation field as energy costs
rise coupled with the fact that industrial plants and
utilities usually account for about half of the total en-
ergy consumption
Recently the environmental impact of new renovated
or relocated industrial and commercial facilities has
taken on new importance Thermal insulation is one of
the most if not the most significant technology used
to conserve energy thereby reducing pollution Besides
minimizing heat loss insulation increases process ef-
ficiency helps maintain employee safety comfort and
production
For their thermal protection of various industrial appli-
cations it is a necessity to design and use such insula-
tion material that meet operating conditions Isover will
help you find the most suitable insulation product for
given application
4-5
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HEAT FLOW TRANSMISSION
Heat transfer is carried out by three heat transmission
modes conduction convection and radiation
Conduction
Heat transfers from warmer surface to colder through
solid material or gas (by fibres in mineral wool
insulations) The more insulant the material the less
the conduction
Convection
Transfer of heat caused by air movements (because of
temperature and density gradient) Hot air moves up
and heat dissipates The quieter the air the less the
convection Convection can be natural (when calculating
insulation inside the building) or forced (for calculation
outside where wind blows)
Radiation
Each material absorbs or emits thermal radiations
depending on its temperature and its emissivity Unlike
conduction or convection heat can be transferred by
radiation also in a vacuum When radiation is absorbed
or reflected there is less thermal transfer Measure of
radiating capacity of a material is emissivity ε Absolute
black body has the highest emissivity (ε = 1) Rough
and dark surfaces approaches such value (for example
mineral wool insulation without jacketing ε = 094)
contrary to bright and smooth surfaces that have very
low emissivity (for example polished aluminium foil ε
= 005) For design it is necessary to take into account
that covering of the bright surface with dust will
increase emissivity significantly
These three transport mechanisms are applied in
two very important quantities ndash surface heat transfer
coefficient α and thermal transmittance U
Thermal insulations impede conduction convection and
radiative effects
by creating a thermal barrier against conductionby suppressing air movements
by limiting radiative effects
Surface heat transfer coefficient
Two heat transmissions (convection and radiation)
influence the heat transfer coefficient α [W(m2middotK)] The
higher the heat transfer coefficient the higher the heat
flow rate from a warm surface
Thermal transmittance
Thermal transmittance (also called Overall heat transfer
coefficient) U (for flat surfaces [W(m2middotK)] for pipes [W
(mmiddotK)]) is inverted value of thermal resistance and it
takes into account the influence of all heat transmission
modes (conduction convection and radiation)
For multi-layer wall
For multi-layer hollow cylinder
where
d hellip thickness of the insulation layer [m]
λ hellip design thermal conductivity of the
insulation product [W(mmiddotK)]
αi hellip internal heat transfer coefficient (at the
medium side)
αe hellip external heat transfer coefficient (at the
ambient side)
R hellip thermal resistance of the multi-layer wall[m2middotKW]
Rsi hellip internal surface resistence [m2middotKW]
Rse
hellip external surface resistence [m2middotKW]
Internal surface resistence of the inner side of the pipe
or wall is very low and therefore it is often neglected in
practical engineering calculations Only in air ducts it is
necessary to calculate it
Details for calculations can be found in the standard
EN ISO 12 241
Materialsrsquo emissivity
Insulation jacketing ε [-]
Aluminium foil bright 005
Aluminium slightly oxidized 013
Stainless steel 015
Aluzinc sheet 018
Galvanized sheet 026
Iron oxidised 030Aluminium stucco-design 040
Brass browned 042
Paint white 085
PVC paint coated sheet metal 090
Paint black 092
Plain mineral wool 094
Temperature gradient in a material
(wall pipe insulation)
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INSULATION SYSTEM DESIGN
GENERAL
An insulation system is the combination of insulations
finishes and application methods which are used toachieve specific design objectives Among these are
Energy savings
Reduced operating costs
Condensation control
Chemical compatibility with the metals being
insulated the atmosphere to which the system
will be exposed and the various components of the
insulation system itself
Protection of mechanical and insulation systems
from mechanical abuse and atmospheric damage
Personnel protection
Fire protection
Sound control
Future requirements for access to piping fittings etc
Accommodation to limited clearances or work space
While there are several choices of insulation materials
which meet basic thermal and cost-effective
requirements of an installation choices become more
limited with each additional design objective that
comes into play
INSULATION THICKNESS CALCULATION
When calculating the thickness of the insulation it isessential to put in appropriate boundary conditions lt
should be noted that the steady-state calculations are
dependent on boundary conditions Often a solution
at one set of boundary conditions is not sufficient to
characterize a thermal system which will operate in a
changing thermal environment (process equipment
operating year-round outdoors for example) In such
cases local weather data based on yearly averages or
yearly extremes of the weather variables should be
used for the calculations
The heat flow through a surface at any point is a function
of several variables which are not directly related
to insulation quality Among others these variables
include ambient temperature movement of the air
roughness and emissivity of the heat flow surface and
the radiation exchange with the surroundings (often
including a great variety of interest) For the calculation
of dew formation variability of the local humidity is animportant factor
Insulation desigh criterion
Apart from a choice of suitable insulation material
for given application it is essential to design proper
insulation thickness It can be determined from two
points of view
Heat loss minimalisation it means reaching the highest
possible economic savings (ideally to calcutate economic
insulation by so- called optimalisation)
Maximum surface temperature (personal protection
against burn) It is usually prescribed by nationallegislation Usual maximum surface temperature is
50 degC if the surrounding air temperature is 25 degC If the
air temperature is different temperature difference
between surface and surrounding air should be up to
25 degC Outdoor piping shall be controlled for maximum
surface temperature every time for summer period
(in the Central Europe calculation air temperature is
30 degC) In boiler rooms surrounding air temperature is
minimally 35 degC
Parameters influencing insulation thick-
ness designHeat flow from the insulation surface is a function of
several parameters which do not relate directly to the
quality of the insulation Here are several parameters
that influence design
thermal conductivity of the insulation material
medium temperature
ambient temperature
external heat transfer coefficient
ECONOMIC THICKNESS
The most substantial return on an investment ininsulation is in energy savings over a period of time
Thermal insulation is one of the most if not the most
significant technology used to conserve energy thereby
reducing pollution Rising energy costs guarantee an
increasing return on any investment made in insulation
In fact it costs less to insulate than not to In the case
of steam process and heat the difference in capital
investment necessary to provide equipment for the
extra steam capacity needed on underinsulated systems
and that investment necessary to insulate plus the
cost of insulation still represents a significant capital
investment savings That insulation saves money is not
the issue here The issue is how much
6-7
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Economic thickness calculations are based on the law
of diminishing returns Because no insulation material
can completely stop the flow of heat each increment ofinsulation added to the thickness saves only a percentage
of the heat which has escaped through the underlying
insulation Therefore each increment of insulation
saves less than the one before it and must be evaluated
against the cost of installation to determine if it is a
ldquogood investmentrdquo It is possible to determine how much
insulation applied to a given system will repay its initial
costs in a specified time This point is reached when the
cost of the last incremental of insulation added is offset
by the savings generated by that increment
Refer to the stetch on the left The vertical scale is the
annual cost The horizontal scale is insulation thickness
As the insulation thickness increases from 0 the cost of
heat loss through the insulation decreases Note that this
cost (line B) tends to approach a horizontal line at high
thicknesses As the insulation thickness increases the
cost of the insulation also increases (line A) The total
annual cost at any insulation thickness is the sum of the
cost of the insulation and the cost of the lost heat (line
C) Line C goes through a minimum value of total annual
cost at the Economic thickness
With thicknesses less than the economic thickness the
total annual cost is higher because of the higher valueof the cost of lost heat With thicknesses higher than
the economic thickness the total annual cost is higher
because of the higher value of the cost of the insulation
In the case of computer results each pipe size will be
listed with the recommended thickness as well as
the average heat savings (as compared to a pre-listed
thickness or bare surface whichever chosen) and the
present value of the heat saved
In order to use any of the available manuals tables
or computer programs the two cost factors (cost of
lost energy and cost of insulation) must be found Thefollowing data is generally provided by the investor
Cost of lost energy
This factor is derived from the combination of the
rate of energy transfer the cost of energy and the
operational hours per year of the building Computing
the rate of energy transfer requires surface and
ambient temperatures thermal conductivity of the
chosen insulation the maximumminimum thickness of
insulation to be considered surface emissivity and last
but not least consideration of surface orientation (i evertical horizontal) and wind (air) velocity
Cost of insulation
This factor is derived from computing a bdquounit installed
price of insulationldquo with the total cost annualized overthe projectacutes life The unit installed price is a combination
of the cost of materials cost of labor and worker
productivity This is a sensitive variable in the economic
thickness calculation Only the roughest of regional
averages are available As a result care must be taken not
to perceive these estimates as fixed budget prices used
for installing insulation Material prices are related to the
volume and cost of the insulation jacketing securement
finishing and structural support material used Also
included in this figure are storage and handling costs to
the contractor Labor costs vary regionally and include
wages fringe benefits per diem and travel expensesas well as overhead and profit Labor production varies
with pipe size complexity number of layers necessary
accessibility of piping and surfaces type of materials
used and general working conditions Other costs
involve the job size and increase with the magnitude of
the job They include the preparation scaffolding clean-
up and tear-down costs supervision costs and general
overhead
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ISOCALreg
For economic thickness calculation program IsoCal
can be used The program also handles the followingcalculations
heat loss calculation
temperature change in pipes or ducts
temperature change in a tank
internal or external condensation
frost protection of water pipes
sound attenuation in ducts
IsoCalreg is a computer program for calculations of
thermal insulation for building equipment and
industrial installations The program mainly calculates
according to EN ISO 12 241 IsoCalreg has been developedprimarily for Saint-Gobain Isoverrsquos range of insulation
products it is however possible to perform more
generic calculations For more information about the
English version 10 please contact your local Isover
representative
MAXIMUM SERVICE TEMPERATURE
MST is determined in a laboratory by testing under de-
fined conditions which are dependent upon the form
of delivery and which are laid down in EN 14 706 (for
wired or lamella mats slabs and felts) and EN 14 707(for pipe sections and segments) MST is determined
by establishing the temperature and time related de-
crease in thickness in one-sided heating For the test
the sample shall take a load of 500 Pa The sample is
heated with a transient of at least 5 Kmin The hot-
face temperature must be maintained for 72 hours at
the expected maximum service temperature At the
maximum service temperature no test result must dis-
play a deformation under load of more than 5
In data sheets of different producers (not only mineral
wool) you will often find MST and value which is not
measured accordance to EN 14 706 This temperature
is only assumed When using such temperature there
is a danger of insulation degradation mainly insulation
thickness If mineral wool product has MST 700 or 750 degC
in its data sheet you can be sure that the material will
not withstand such temperature without degradation
of assessed properties Such temperatures shall not
be used Producers should leave field of assumed MST
and test their products to be able to use declared
MST according to EN 14 706 It is an outstandingimprovement compared to the past because individual
products on the European market can be compared to
each other according to standards valid in the EU
Slabs wired and lamella mats Orstech are certificated
according to valid European standards they are
regularly tested in testing laboratory FIW Muumlnchen
according to VDI 2055 and AGI Q 132 Maximum service
temperatures for various products can be found at the
end of the catalogue in the chapter Isover Products on
page 21)
EVAPORATION OF BINDERS
Binders and greasing agents in mineral wool products
dissolve and evaporate in areas with temperatures
higher than 150 degC Binder evaporation does not have any
influence on thermal properties only the compactness
of a material is decreased If proper underconstruction
is made there is almost no danger of insulation slide
down But if too small insulation thickness or improper
type of insulation is used (mostly insulation with too
low density for too high temperatures) danger of binder
evaporation in the whole thickness is possible with
consequent insulation slide down In this case no well
made underconstruction will help Insulation will not
work any more In the outer colder areas no dissolution
and evaporation take place
Density influence on thermal conductivity
Temperature influence on thermal conductivity for slabsORSTECH
8-9
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FIRE PERFORMANCE
FIRE ndash a chemical reaction involving rapid oxidation or
burning of a fuel occurs only when three elements are
present in the proper conditions and proportions
FUEL ndash Fuel can be any combustible material - solid
liquid or gas Most solids and liquids become a vapour
or gas before they burn
OXYGEN ndash The air we breathe is about 21 oxygen Fire
only needs an atmosphere with at least 16 oxygen
HEAT ndash Heat is the energy necessary to increase the
temperature of the fuel to a point where sufficient
vapours are given off for ignition to occur
Fire development depends mostly on room geometry
and ventilation the fuel type the amount and surface
area of the fuel Fire is often discussed in terms of the
temperature development and can be divided into
different stages incipience (ignition) growth flashover
fully developed fire and decay
How materials behave in the early stages of a fire from
ignition to flashover (the spontaneous ignition of hot
smoke and gasses) needs to be assessed at the design
stage for buildings and also for plants and equipment
Euroclasses a new European harmonised classification
system for materialsrsquo reaction to fire in most Europeancountries replaced the old national standards The
Euroclass fire classification covers not only materials
used in building structures but it is being extended also
to technical insulations to cover building equipment
and industrial installations This will help to compare
the reaction to fire of different thermal insulation
materials
The classification levels are A1A2 (completely non-
combustible) B C D E and F A1A2 corresponds to
the safest situation E would be the most dangerous
situation and F would mean not classified
ISOVER mineral wool insulations are totally non-
combustible and completely fire safe achieving
Euroclass A1 fire rating (A2 for products with facing)when classified in accordance with EN 13501-1 One
of the most important issues studied under reaction to
fire performance is the potential for flashover to occur
which can lead to a fire spreading uncontrollably Isover
stone wool is not susceptible to flashover
This is a guide to common building materials and their
likely Euroclassification
Check with individual product manufactures for spedific
product specifications
REACTION TO FIRE
Smoke and flaming droplet risk(1) In the EU classification system for reaction to fire
a construction product will be classified as Euroclass A1
A2 B C D E or F depending on its tendency to burn
(2) The product testing will provide data represented
by the signs s1 s2 or s3 which indicate the tendency
to release smoke Smoke causes over 60 of deaths in
fire across the EU The measurement of smoke release
has been put into these 3 broad bands that can be
translated as ldquolittle or no smokerdquo s1 - rdquoquite a lot of
smokerdquo s2 - rdquosubstantial smoke releaserdquo s3
(3) Some construction products like these made of
polystyrene can melt and ignite to form Flaming
Droplets Wooden products on the other hand will tend
to char before the char falls away as Flaming Particles
to expose more material
These rdquoflaming dropletsparticlesrdquo will tend to
initiate new fires away from the original point of
ignition and must be considered when the products
are used horizontally in ceiling or roof applications
The classification system ranks the level of release of
flaming dropletsparticles as d0 (none) d1 (some) and
d2 (quite a lot)
Commno materials and likely Euroclass
Euroclass Flashover potential Example materials
A1 amp A2 No Glass and stone mineral wool concrete brick and plasterboard
B No Typically timber products
C Yes 10 minutes Phenolic foam (foil faced) synthetic rubber
D Yes 2-10 minutes Expanded polystyrene type A extruded polystyrene polyisocyanurate foam (foil faced)
E Yes lt 2 minutes Pylyurethane foam (laminate faced) polyisocyanurate foam (sprayed)
F Yes Early failure or no data Expanded polystyrene type N untested or fails Euroclass E
Reaction to fire
H E A T
F U E L
OXYGEN
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
8122019 Catalogue of Technical Insulations 2013-10-598 En
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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TABLE OF CONTENT
TABLE OF CONTENT 983090
PROPERTIES OF ISOVER PRODUCTS 983091BASIC FUNCTIONS OF TECHNICAL INSULATIONS 983093
HEAT FLOW TRANSMISSION 983094
INSULATION SYSTEM DESIGN 983095
General 7
Insulation thickness calculation 7
Insulation desigh criterion 7
Parameters influencing insulation thickness design 7
Economic thickness 7
Maximum service temperature 9
FIRE PERFORMANCE 983089983088
FIRE PROTECTION DESIGN FOR VENTILATION DUCTS 983089983089
Legislation 11
Maximum duct sizes 11
ACOUSTIC PERFORMANCE 983089983090
Sound Absorption 12
Absorptive structures 13
Acoustics insulations 13
GENERAL RULES FOR USING ISOVER INSULATIONS 983089983092
APPLICATION OF TECHNICAL INSULATION 983089983093
Piping insulation 15
Ducting insulation 17
Fire protection of ventilation ducts 18
Technological appliance insulation 20
Boiler insulation 20
Chimney insulation 20
ISOVER PRODUCTS FOR TECHNICAL INSULATIONS 983090983089
OVERVIEW OF TECHNICAL INSULATION APPLICATION 983090983094
TECHNICAL INSULATION PROPERTIES 983090983095
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Mineral wool insulation Isover is made from the earthrsquos
most abundant materials rock sand and minerals of
various types The production is based on fiberizingof molten raw materials consisting of minerals and
different amounts of artificial resins Mineral wool
insulation materials are delivered as wired mats lamella
mats slabs blocks pipe sections and felts Depending
upon the form of delivery mineral wool insulations can
be quilted on wire mesh faced with foils glass fleece or
glass filament tissue or be equipped with coatings
Final Isover products have the following properties
apparent density from 25 to 150 kgm3 (special fire
protection slabs can have density up to 200 kgm 3)
very good thermal insulation performance (low
thermal conductivity)
very good sound attenuation (high absorption
coefficient)
fire resistance ndash non-combustible material
high temperature resistance (possibility of application
up to a maximum surface temperature)
environmental friendly and hygienic
hydrophobisation ndash Isover insulation materials are
made water repellent
long life span (material is not aging)
resistant to wood-destroying pests rodents and
insect
easy to handle easy to cut with a sharp knife
The Isover product range provides fire safe thermal
and acoustic insulation solutions in many applications
including HVAC original equipment transport and
for tanks and storage vessels The range of high
quality products has been designed to be effective in
both performance and cost while providing ease of
installation Each product is engineered to fulfil specific
performance criteria Maximum surface temperature
(MST) is dependent on the apparent density (the
higher the density the higher MST and better thermal
performance at high temperature surfaces) Mineral woolinsulations have a melting point higher than 1000 degC
For outdoor application metal steel jacketing is
required If a product is with an aluminium facing then
the surface temperature must not exceed 100 degC on the
facing proper thickness of insulation must be designed
for this purpose Binders and greasing agents in mineral
wool products dissolve and evaporate in areas with
temperatures higher than 150 degC As the temperaturefalls in the direction of the insulationrsquos cold side the
binder remains unchanged in the greater part of the
material In the outer areas colder than 150 degC no
dissolution and evaporation take place
Isover is part of the Saint-Gobain group leaders in the
design production and distribution of materials for
the construction industrial and consumer markets
With a presence in over 50 countries the grouprsquos global
reach allows us to draw on unrivalled financial and
technological resources to meet the changing needs of
customers and communities in the 21st century In the
Czech Republic Isover has a modern stone wool plant in
Častolovice Trade Headquarters is in Prague Thermal
acoustic and fire protection insulations have been
produced in Častolovice for more than 40 years Our
company offers a complete range of insulation materials
from both stone and glass wool Thus we can offer you
the optimal product for any industrial application You
will find the best solution with us
PROPERTIES OF ISOVER PRODUCTS FROM MINERAL WOOL
2-3
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AS QUALITY
Corrosion of stainless steel surfaces under insulation
is an often discussed issue Highly alloyed austenitic
steel (alloyed by chrome nickel and molybdenum) are
predisposed to tensile stress corrosion (stress corrosion
cracking) which is caused by chloride ions Austenitic
is a description of crystalline steel structure therefore
identified as AS Chlorides with water (well-known
is classical salt) attack steel surface and cause cracks
in the material With increasing surface temperature
the danger of stress corrosion cracking is raised To
minimise this danger mineral wool insulations in AS
quality are available for this application Standard AGI
Q 132 determines maximum content of chloride ions of
10 mg in 1 kg of the insulation material Mineral woolinsulations may be used for insulating objects made
of stainless austenitic steels if the content meets the
requirement Isover stone wool technical insulations
meet the requirement of AGI Q 132
THERMAL CONDUCTIVITY
One of the most important parameters of insulations is
their thermal conductivity named lambda value λ [W
(mK)] Thermal conductivity measures the capacity of a
material to lead or to resist heat transfer The smaller
the lambda value the better the thermal insulation
The thermal performance of mineral wool is achievedthrough the entrapment of air within the material Its
thermal conductivity does not deteriorate over time
For slabs mats felts and loose mineral wool the
thermal conductivity is determined in the hot box
tester according to EN 12 667 The determination of the
thermal conductivity of sections is in the pipe tester
according to EN ISO 8497 For lamella mats and wired
mats the thermal conductivity is measured in the hot
box and in the pipe tester The thermal conductivity of
mineral wool insulations has to be determined up to the
maximum service temperature (hot face) as a function
of the mean temperature (arithmetic mean betweenobject and surface temperature)
The thermal conductivity varies with temperatures and
with densities The higher the density the higher the
thermal performance at high temperature surfaces In
our product data sheets declared lambda-values λD
are
used these values are fulfilled within every product
A designer will be on the safe side when using our
declared lambda-values That means allowances for
workmanship spacers and supporting constructions
are made Possible inaccuracies caused by calculation
equations can be eliminated
MELTING POINT OF MINERAL WOOL
PRODUCTS
The melting point of mineral wool is determined
according to DIN 4102 part 17 It is a parameter for
the durability of mineral wool insulations in building
components in case of fire It must not be confused
with the maximum service temperature and has no
relation to the service temperature Mineral wool
insulations have the melting point higher than 1000 degC
usually in the range from 1200 to 1600 degC
MAXIMUM SERVICE TEMPERATURE
Maximum service temperature according to EN 14 706
(for wired mats lamella mats and slabs) and EN 14 707
(for pipe sections) ranging from 250 to 700 degC MST for
various products can be found in a Product data sheet
or at the end of the catalogue in the chapter Isover
Products on page 23
FIRE RESISTANCE
Mineral wool products Isover are completely non-
combustible they resist to high temperatures and thus
prevent fire spread The classification levels according
to EN 13 501-1 are A1 possibly A2 for materials with
a facing
ACOUSTIC PROPERTIESIsover mineral wool products have a fibre structure
and therefore reach excellent noise attenuation for
example from HVAC services (pipework ductwork
and air handling equipment) and other services An
absorbent layer of mineral wool has the best absorption
capacity in the medium and high frequencies (under
such conditions it can have absorption coefficient up to
98 (α = 095)) The absorption in the low frequencies
is improved by increasing the thickness or by providing
an air gap behind the absorbent layer
RESISTANT TO BIOLOGICAL PESTSMineral wool insulation is resistent to wood-destroying
pests rodents and insects They are rot-proof and do
not sustain growth of mould
LOW THERMAL EXPANSION
Mineral wool insulations have almost zero thermal
expansion with changing temperatures
MOISTURE AND WATER REPELLENCE
All Isover products are treated during manufacture with
special additives which make them water repellent
Isover products are a hydrophobic non-hygroscopicinsulation material If Isover products get wet they
dry out quickly as a result of the open structure and its
mechanical and insulating properties are unaffected
after drying For outdoor application metal steel
jacketing is unconditional ly required
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BASIC FUNCTIONS OF TECHNICAL INSULATIONS
Insulations are defined as those materials which retard
the flow of heat energy by performing one or more of
the following functions
Energy conservation minimizing unwanted heat loss
gain from building HVAC systems as well as preserv-
ing natural and financial resources
Personnel protection controlling surface tempera-tures to avoid contact burns (hot or cold) ndash maximum
surface temperature criterion
Condensation control minimizing condensation by
keeping the surface temperature above the dew point
of surrounding air
Prevent internal condensation in pipes
Process control minimizing temperature change in
process fluids where close control is needed
Increase operating efficiency of heating ventilating
cooling plumbing steam process and power systems
found in commercial and industrial installations
Freeze protection minimizing energy required for
heat tracing systems andor extending the time to
freeze in the event of system failure Freeze protec-
tion of vessels and tanks with various accumulated
fluids or fuels
Noise control reducingcontrolling noise in mechani-
cal systems
Fire safety protecting critical building elements and
slowing the spread of fire in buildings
The application of thermal insulation on pipe vessels
and ducts is recognized as a necessary requirement in
any construction activity The thickness and extent of
insulation required has always been subject to arbi-
trary and imprecise decisions with little engineering or
economic input No material incorporated in a modern
construction project provides the owner with as good
a financial return throughout the life of the facility as
does insulation
The investment in insulation may protect the equip-
ment and personnel present during the life of the facil-
ity Proper insulation prevents condensation chemical
corrosion and excessive heat in fire hazard areas Added
human comfort provided by proper insulation in hotelsoffice buildings schools or factories adds considerably
to the value of the facility and productivity of its per-
sonnel Process temperatures in heat traced piping are
more efficiently maintained with proper insulation The
size of the heat generating equipment can be reduced
when designed with an efficient insulation system In
some cases insulation is essential to an industrylsquos very
existence as with the power the process and
the cold storage
However the most substantial return on an investment
in insulation is in energy savings over a period of timeThese savings are becoming more and more empha-
sized in the industrial insulation field as energy costs
rise coupled with the fact that industrial plants and
utilities usually account for about half of the total en-
ergy consumption
Recently the environmental impact of new renovated
or relocated industrial and commercial facilities has
taken on new importance Thermal insulation is one of
the most if not the most significant technology used
to conserve energy thereby reducing pollution Besides
minimizing heat loss insulation increases process ef-
ficiency helps maintain employee safety comfort and
production
For their thermal protection of various industrial appli-
cations it is a necessity to design and use such insula-
tion material that meet operating conditions Isover will
help you find the most suitable insulation product for
given application
4-5
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HEAT FLOW TRANSMISSION
Heat transfer is carried out by three heat transmission
modes conduction convection and radiation
Conduction
Heat transfers from warmer surface to colder through
solid material or gas (by fibres in mineral wool
insulations) The more insulant the material the less
the conduction
Convection
Transfer of heat caused by air movements (because of
temperature and density gradient) Hot air moves up
and heat dissipates The quieter the air the less the
convection Convection can be natural (when calculating
insulation inside the building) or forced (for calculation
outside where wind blows)
Radiation
Each material absorbs or emits thermal radiations
depending on its temperature and its emissivity Unlike
conduction or convection heat can be transferred by
radiation also in a vacuum When radiation is absorbed
or reflected there is less thermal transfer Measure of
radiating capacity of a material is emissivity ε Absolute
black body has the highest emissivity (ε = 1) Rough
and dark surfaces approaches such value (for example
mineral wool insulation without jacketing ε = 094)
contrary to bright and smooth surfaces that have very
low emissivity (for example polished aluminium foil ε
= 005) For design it is necessary to take into account
that covering of the bright surface with dust will
increase emissivity significantly
These three transport mechanisms are applied in
two very important quantities ndash surface heat transfer
coefficient α and thermal transmittance U
Thermal insulations impede conduction convection and
radiative effects
by creating a thermal barrier against conductionby suppressing air movements
by limiting radiative effects
Surface heat transfer coefficient
Two heat transmissions (convection and radiation)
influence the heat transfer coefficient α [W(m2middotK)] The
higher the heat transfer coefficient the higher the heat
flow rate from a warm surface
Thermal transmittance
Thermal transmittance (also called Overall heat transfer
coefficient) U (for flat surfaces [W(m2middotK)] for pipes [W
(mmiddotK)]) is inverted value of thermal resistance and it
takes into account the influence of all heat transmission
modes (conduction convection and radiation)
For multi-layer wall
For multi-layer hollow cylinder
where
d hellip thickness of the insulation layer [m]
λ hellip design thermal conductivity of the
insulation product [W(mmiddotK)]
αi hellip internal heat transfer coefficient (at the
medium side)
αe hellip external heat transfer coefficient (at the
ambient side)
R hellip thermal resistance of the multi-layer wall[m2middotKW]
Rsi hellip internal surface resistence [m2middotKW]
Rse
hellip external surface resistence [m2middotKW]
Internal surface resistence of the inner side of the pipe
or wall is very low and therefore it is often neglected in
practical engineering calculations Only in air ducts it is
necessary to calculate it
Details for calculations can be found in the standard
EN ISO 12 241
Materialsrsquo emissivity
Insulation jacketing ε [-]
Aluminium foil bright 005
Aluminium slightly oxidized 013
Stainless steel 015
Aluzinc sheet 018
Galvanized sheet 026
Iron oxidised 030Aluminium stucco-design 040
Brass browned 042
Paint white 085
PVC paint coated sheet metal 090
Paint black 092
Plain mineral wool 094
Temperature gradient in a material
(wall pipe insulation)
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INSULATION SYSTEM DESIGN
GENERAL
An insulation system is the combination of insulations
finishes and application methods which are used toachieve specific design objectives Among these are
Energy savings
Reduced operating costs
Condensation control
Chemical compatibility with the metals being
insulated the atmosphere to which the system
will be exposed and the various components of the
insulation system itself
Protection of mechanical and insulation systems
from mechanical abuse and atmospheric damage
Personnel protection
Fire protection
Sound control
Future requirements for access to piping fittings etc
Accommodation to limited clearances or work space
While there are several choices of insulation materials
which meet basic thermal and cost-effective
requirements of an installation choices become more
limited with each additional design objective that
comes into play
INSULATION THICKNESS CALCULATION
When calculating the thickness of the insulation it isessential to put in appropriate boundary conditions lt
should be noted that the steady-state calculations are
dependent on boundary conditions Often a solution
at one set of boundary conditions is not sufficient to
characterize a thermal system which will operate in a
changing thermal environment (process equipment
operating year-round outdoors for example) In such
cases local weather data based on yearly averages or
yearly extremes of the weather variables should be
used for the calculations
The heat flow through a surface at any point is a function
of several variables which are not directly related
to insulation quality Among others these variables
include ambient temperature movement of the air
roughness and emissivity of the heat flow surface and
the radiation exchange with the surroundings (often
including a great variety of interest) For the calculation
of dew formation variability of the local humidity is animportant factor
Insulation desigh criterion
Apart from a choice of suitable insulation material
for given application it is essential to design proper
insulation thickness It can be determined from two
points of view
Heat loss minimalisation it means reaching the highest
possible economic savings (ideally to calcutate economic
insulation by so- called optimalisation)
Maximum surface temperature (personal protection
against burn) It is usually prescribed by nationallegislation Usual maximum surface temperature is
50 degC if the surrounding air temperature is 25 degC If the
air temperature is different temperature difference
between surface and surrounding air should be up to
25 degC Outdoor piping shall be controlled for maximum
surface temperature every time for summer period
(in the Central Europe calculation air temperature is
30 degC) In boiler rooms surrounding air temperature is
minimally 35 degC
Parameters influencing insulation thick-
ness designHeat flow from the insulation surface is a function of
several parameters which do not relate directly to the
quality of the insulation Here are several parameters
that influence design
thermal conductivity of the insulation material
medium temperature
ambient temperature
external heat transfer coefficient
ECONOMIC THICKNESS
The most substantial return on an investment ininsulation is in energy savings over a period of time
Thermal insulation is one of the most if not the most
significant technology used to conserve energy thereby
reducing pollution Rising energy costs guarantee an
increasing return on any investment made in insulation
In fact it costs less to insulate than not to In the case
of steam process and heat the difference in capital
investment necessary to provide equipment for the
extra steam capacity needed on underinsulated systems
and that investment necessary to insulate plus the
cost of insulation still represents a significant capital
investment savings That insulation saves money is not
the issue here The issue is how much
6-7
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Economic thickness calculations are based on the law
of diminishing returns Because no insulation material
can completely stop the flow of heat each increment ofinsulation added to the thickness saves only a percentage
of the heat which has escaped through the underlying
insulation Therefore each increment of insulation
saves less than the one before it and must be evaluated
against the cost of installation to determine if it is a
ldquogood investmentrdquo It is possible to determine how much
insulation applied to a given system will repay its initial
costs in a specified time This point is reached when the
cost of the last incremental of insulation added is offset
by the savings generated by that increment
Refer to the stetch on the left The vertical scale is the
annual cost The horizontal scale is insulation thickness
As the insulation thickness increases from 0 the cost of
heat loss through the insulation decreases Note that this
cost (line B) tends to approach a horizontal line at high
thicknesses As the insulation thickness increases the
cost of the insulation also increases (line A) The total
annual cost at any insulation thickness is the sum of the
cost of the insulation and the cost of the lost heat (line
C) Line C goes through a minimum value of total annual
cost at the Economic thickness
With thicknesses less than the economic thickness the
total annual cost is higher because of the higher valueof the cost of lost heat With thicknesses higher than
the economic thickness the total annual cost is higher
because of the higher value of the cost of the insulation
In the case of computer results each pipe size will be
listed with the recommended thickness as well as
the average heat savings (as compared to a pre-listed
thickness or bare surface whichever chosen) and the
present value of the heat saved
In order to use any of the available manuals tables
or computer programs the two cost factors (cost of
lost energy and cost of insulation) must be found Thefollowing data is generally provided by the investor
Cost of lost energy
This factor is derived from the combination of the
rate of energy transfer the cost of energy and the
operational hours per year of the building Computing
the rate of energy transfer requires surface and
ambient temperatures thermal conductivity of the
chosen insulation the maximumminimum thickness of
insulation to be considered surface emissivity and last
but not least consideration of surface orientation (i evertical horizontal) and wind (air) velocity
Cost of insulation
This factor is derived from computing a bdquounit installed
price of insulationldquo with the total cost annualized overthe projectacutes life The unit installed price is a combination
of the cost of materials cost of labor and worker
productivity This is a sensitive variable in the economic
thickness calculation Only the roughest of regional
averages are available As a result care must be taken not
to perceive these estimates as fixed budget prices used
for installing insulation Material prices are related to the
volume and cost of the insulation jacketing securement
finishing and structural support material used Also
included in this figure are storage and handling costs to
the contractor Labor costs vary regionally and include
wages fringe benefits per diem and travel expensesas well as overhead and profit Labor production varies
with pipe size complexity number of layers necessary
accessibility of piping and surfaces type of materials
used and general working conditions Other costs
involve the job size and increase with the magnitude of
the job They include the preparation scaffolding clean-
up and tear-down costs supervision costs and general
overhead
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ISOCALreg
For economic thickness calculation program IsoCal
can be used The program also handles the followingcalculations
heat loss calculation
temperature change in pipes or ducts
temperature change in a tank
internal or external condensation
frost protection of water pipes
sound attenuation in ducts
IsoCalreg is a computer program for calculations of
thermal insulation for building equipment and
industrial installations The program mainly calculates
according to EN ISO 12 241 IsoCalreg has been developedprimarily for Saint-Gobain Isoverrsquos range of insulation
products it is however possible to perform more
generic calculations For more information about the
English version 10 please contact your local Isover
representative
MAXIMUM SERVICE TEMPERATURE
MST is determined in a laboratory by testing under de-
fined conditions which are dependent upon the form
of delivery and which are laid down in EN 14 706 (for
wired or lamella mats slabs and felts) and EN 14 707(for pipe sections and segments) MST is determined
by establishing the temperature and time related de-
crease in thickness in one-sided heating For the test
the sample shall take a load of 500 Pa The sample is
heated with a transient of at least 5 Kmin The hot-
face temperature must be maintained for 72 hours at
the expected maximum service temperature At the
maximum service temperature no test result must dis-
play a deformation under load of more than 5
In data sheets of different producers (not only mineral
wool) you will often find MST and value which is not
measured accordance to EN 14 706 This temperature
is only assumed When using such temperature there
is a danger of insulation degradation mainly insulation
thickness If mineral wool product has MST 700 or 750 degC
in its data sheet you can be sure that the material will
not withstand such temperature without degradation
of assessed properties Such temperatures shall not
be used Producers should leave field of assumed MST
and test their products to be able to use declared
MST according to EN 14 706 It is an outstandingimprovement compared to the past because individual
products on the European market can be compared to
each other according to standards valid in the EU
Slabs wired and lamella mats Orstech are certificated
according to valid European standards they are
regularly tested in testing laboratory FIW Muumlnchen
according to VDI 2055 and AGI Q 132 Maximum service
temperatures for various products can be found at the
end of the catalogue in the chapter Isover Products on
page 21)
EVAPORATION OF BINDERS
Binders and greasing agents in mineral wool products
dissolve and evaporate in areas with temperatures
higher than 150 degC Binder evaporation does not have any
influence on thermal properties only the compactness
of a material is decreased If proper underconstruction
is made there is almost no danger of insulation slide
down But if too small insulation thickness or improper
type of insulation is used (mostly insulation with too
low density for too high temperatures) danger of binder
evaporation in the whole thickness is possible with
consequent insulation slide down In this case no well
made underconstruction will help Insulation will not
work any more In the outer colder areas no dissolution
and evaporation take place
Density influence on thermal conductivity
Temperature influence on thermal conductivity for slabsORSTECH
8-9
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FIRE PERFORMANCE
FIRE ndash a chemical reaction involving rapid oxidation or
burning of a fuel occurs only when three elements are
present in the proper conditions and proportions
FUEL ndash Fuel can be any combustible material - solid
liquid or gas Most solids and liquids become a vapour
or gas before they burn
OXYGEN ndash The air we breathe is about 21 oxygen Fire
only needs an atmosphere with at least 16 oxygen
HEAT ndash Heat is the energy necessary to increase the
temperature of the fuel to a point where sufficient
vapours are given off for ignition to occur
Fire development depends mostly on room geometry
and ventilation the fuel type the amount and surface
area of the fuel Fire is often discussed in terms of the
temperature development and can be divided into
different stages incipience (ignition) growth flashover
fully developed fire and decay
How materials behave in the early stages of a fire from
ignition to flashover (the spontaneous ignition of hot
smoke and gasses) needs to be assessed at the design
stage for buildings and also for plants and equipment
Euroclasses a new European harmonised classification
system for materialsrsquo reaction to fire in most Europeancountries replaced the old national standards The
Euroclass fire classification covers not only materials
used in building structures but it is being extended also
to technical insulations to cover building equipment
and industrial installations This will help to compare
the reaction to fire of different thermal insulation
materials
The classification levels are A1A2 (completely non-
combustible) B C D E and F A1A2 corresponds to
the safest situation E would be the most dangerous
situation and F would mean not classified
ISOVER mineral wool insulations are totally non-
combustible and completely fire safe achieving
Euroclass A1 fire rating (A2 for products with facing)when classified in accordance with EN 13501-1 One
of the most important issues studied under reaction to
fire performance is the potential for flashover to occur
which can lead to a fire spreading uncontrollably Isover
stone wool is not susceptible to flashover
This is a guide to common building materials and their
likely Euroclassification
Check with individual product manufactures for spedific
product specifications
REACTION TO FIRE
Smoke and flaming droplet risk(1) In the EU classification system for reaction to fire
a construction product will be classified as Euroclass A1
A2 B C D E or F depending on its tendency to burn
(2) The product testing will provide data represented
by the signs s1 s2 or s3 which indicate the tendency
to release smoke Smoke causes over 60 of deaths in
fire across the EU The measurement of smoke release
has been put into these 3 broad bands that can be
translated as ldquolittle or no smokerdquo s1 - rdquoquite a lot of
smokerdquo s2 - rdquosubstantial smoke releaserdquo s3
(3) Some construction products like these made of
polystyrene can melt and ignite to form Flaming
Droplets Wooden products on the other hand will tend
to char before the char falls away as Flaming Particles
to expose more material
These rdquoflaming dropletsparticlesrdquo will tend to
initiate new fires away from the original point of
ignition and must be considered when the products
are used horizontally in ceiling or roof applications
The classification system ranks the level of release of
flaming dropletsparticles as d0 (none) d1 (some) and
d2 (quite a lot)
Commno materials and likely Euroclass
Euroclass Flashover potential Example materials
A1 amp A2 No Glass and stone mineral wool concrete brick and plasterboard
B No Typically timber products
C Yes 10 minutes Phenolic foam (foil faced) synthetic rubber
D Yes 2-10 minutes Expanded polystyrene type A extruded polystyrene polyisocyanurate foam (foil faced)
E Yes lt 2 minutes Pylyurethane foam (laminate faced) polyisocyanurate foam (sprayed)
F Yes Early failure or no data Expanded polystyrene type N untested or fails Euroclass E
Reaction to fire
H E A T
F U E L
OXYGEN
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
8122019 Catalogue of Technical Insulations 2013-10-598 En
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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Mineral wool insulation Isover is made from the earthrsquos
most abundant materials rock sand and minerals of
various types The production is based on fiberizingof molten raw materials consisting of minerals and
different amounts of artificial resins Mineral wool
insulation materials are delivered as wired mats lamella
mats slabs blocks pipe sections and felts Depending
upon the form of delivery mineral wool insulations can
be quilted on wire mesh faced with foils glass fleece or
glass filament tissue or be equipped with coatings
Final Isover products have the following properties
apparent density from 25 to 150 kgm3 (special fire
protection slabs can have density up to 200 kgm 3)
very good thermal insulation performance (low
thermal conductivity)
very good sound attenuation (high absorption
coefficient)
fire resistance ndash non-combustible material
high temperature resistance (possibility of application
up to a maximum surface temperature)
environmental friendly and hygienic
hydrophobisation ndash Isover insulation materials are
made water repellent
long life span (material is not aging)
resistant to wood-destroying pests rodents and
insect
easy to handle easy to cut with a sharp knife
The Isover product range provides fire safe thermal
and acoustic insulation solutions in many applications
including HVAC original equipment transport and
for tanks and storage vessels The range of high
quality products has been designed to be effective in
both performance and cost while providing ease of
installation Each product is engineered to fulfil specific
performance criteria Maximum surface temperature
(MST) is dependent on the apparent density (the
higher the density the higher MST and better thermal
performance at high temperature surfaces) Mineral woolinsulations have a melting point higher than 1000 degC
For outdoor application metal steel jacketing is
required If a product is with an aluminium facing then
the surface temperature must not exceed 100 degC on the
facing proper thickness of insulation must be designed
for this purpose Binders and greasing agents in mineral
wool products dissolve and evaporate in areas with
temperatures higher than 150 degC As the temperaturefalls in the direction of the insulationrsquos cold side the
binder remains unchanged in the greater part of the
material In the outer areas colder than 150 degC no
dissolution and evaporation take place
Isover is part of the Saint-Gobain group leaders in the
design production and distribution of materials for
the construction industrial and consumer markets
With a presence in over 50 countries the grouprsquos global
reach allows us to draw on unrivalled financial and
technological resources to meet the changing needs of
customers and communities in the 21st century In the
Czech Republic Isover has a modern stone wool plant in
Častolovice Trade Headquarters is in Prague Thermal
acoustic and fire protection insulations have been
produced in Častolovice for more than 40 years Our
company offers a complete range of insulation materials
from both stone and glass wool Thus we can offer you
the optimal product for any industrial application You
will find the best solution with us
PROPERTIES OF ISOVER PRODUCTS FROM MINERAL WOOL
2-3
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AS QUALITY
Corrosion of stainless steel surfaces under insulation
is an often discussed issue Highly alloyed austenitic
steel (alloyed by chrome nickel and molybdenum) are
predisposed to tensile stress corrosion (stress corrosion
cracking) which is caused by chloride ions Austenitic
is a description of crystalline steel structure therefore
identified as AS Chlorides with water (well-known
is classical salt) attack steel surface and cause cracks
in the material With increasing surface temperature
the danger of stress corrosion cracking is raised To
minimise this danger mineral wool insulations in AS
quality are available for this application Standard AGI
Q 132 determines maximum content of chloride ions of
10 mg in 1 kg of the insulation material Mineral woolinsulations may be used for insulating objects made
of stainless austenitic steels if the content meets the
requirement Isover stone wool technical insulations
meet the requirement of AGI Q 132
THERMAL CONDUCTIVITY
One of the most important parameters of insulations is
their thermal conductivity named lambda value λ [W
(mK)] Thermal conductivity measures the capacity of a
material to lead or to resist heat transfer The smaller
the lambda value the better the thermal insulation
The thermal performance of mineral wool is achievedthrough the entrapment of air within the material Its
thermal conductivity does not deteriorate over time
For slabs mats felts and loose mineral wool the
thermal conductivity is determined in the hot box
tester according to EN 12 667 The determination of the
thermal conductivity of sections is in the pipe tester
according to EN ISO 8497 For lamella mats and wired
mats the thermal conductivity is measured in the hot
box and in the pipe tester The thermal conductivity of
mineral wool insulations has to be determined up to the
maximum service temperature (hot face) as a function
of the mean temperature (arithmetic mean betweenobject and surface temperature)
The thermal conductivity varies with temperatures and
with densities The higher the density the higher the
thermal performance at high temperature surfaces In
our product data sheets declared lambda-values λD
are
used these values are fulfilled within every product
A designer will be on the safe side when using our
declared lambda-values That means allowances for
workmanship spacers and supporting constructions
are made Possible inaccuracies caused by calculation
equations can be eliminated
MELTING POINT OF MINERAL WOOL
PRODUCTS
The melting point of mineral wool is determined
according to DIN 4102 part 17 It is a parameter for
the durability of mineral wool insulations in building
components in case of fire It must not be confused
with the maximum service temperature and has no
relation to the service temperature Mineral wool
insulations have the melting point higher than 1000 degC
usually in the range from 1200 to 1600 degC
MAXIMUM SERVICE TEMPERATURE
Maximum service temperature according to EN 14 706
(for wired mats lamella mats and slabs) and EN 14 707
(for pipe sections) ranging from 250 to 700 degC MST for
various products can be found in a Product data sheet
or at the end of the catalogue in the chapter Isover
Products on page 23
FIRE RESISTANCE
Mineral wool products Isover are completely non-
combustible they resist to high temperatures and thus
prevent fire spread The classification levels according
to EN 13 501-1 are A1 possibly A2 for materials with
a facing
ACOUSTIC PROPERTIESIsover mineral wool products have a fibre structure
and therefore reach excellent noise attenuation for
example from HVAC services (pipework ductwork
and air handling equipment) and other services An
absorbent layer of mineral wool has the best absorption
capacity in the medium and high frequencies (under
such conditions it can have absorption coefficient up to
98 (α = 095)) The absorption in the low frequencies
is improved by increasing the thickness or by providing
an air gap behind the absorbent layer
RESISTANT TO BIOLOGICAL PESTSMineral wool insulation is resistent to wood-destroying
pests rodents and insects They are rot-proof and do
not sustain growth of mould
LOW THERMAL EXPANSION
Mineral wool insulations have almost zero thermal
expansion with changing temperatures
MOISTURE AND WATER REPELLENCE
All Isover products are treated during manufacture with
special additives which make them water repellent
Isover products are a hydrophobic non-hygroscopicinsulation material If Isover products get wet they
dry out quickly as a result of the open structure and its
mechanical and insulating properties are unaffected
after drying For outdoor application metal steel
jacketing is unconditional ly required
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BASIC FUNCTIONS OF TECHNICAL INSULATIONS
Insulations are defined as those materials which retard
the flow of heat energy by performing one or more of
the following functions
Energy conservation minimizing unwanted heat loss
gain from building HVAC systems as well as preserv-
ing natural and financial resources
Personnel protection controlling surface tempera-tures to avoid contact burns (hot or cold) ndash maximum
surface temperature criterion
Condensation control minimizing condensation by
keeping the surface temperature above the dew point
of surrounding air
Prevent internal condensation in pipes
Process control minimizing temperature change in
process fluids where close control is needed
Increase operating efficiency of heating ventilating
cooling plumbing steam process and power systems
found in commercial and industrial installations
Freeze protection minimizing energy required for
heat tracing systems andor extending the time to
freeze in the event of system failure Freeze protec-
tion of vessels and tanks with various accumulated
fluids or fuels
Noise control reducingcontrolling noise in mechani-
cal systems
Fire safety protecting critical building elements and
slowing the spread of fire in buildings
The application of thermal insulation on pipe vessels
and ducts is recognized as a necessary requirement in
any construction activity The thickness and extent of
insulation required has always been subject to arbi-
trary and imprecise decisions with little engineering or
economic input No material incorporated in a modern
construction project provides the owner with as good
a financial return throughout the life of the facility as
does insulation
The investment in insulation may protect the equip-
ment and personnel present during the life of the facil-
ity Proper insulation prevents condensation chemical
corrosion and excessive heat in fire hazard areas Added
human comfort provided by proper insulation in hotelsoffice buildings schools or factories adds considerably
to the value of the facility and productivity of its per-
sonnel Process temperatures in heat traced piping are
more efficiently maintained with proper insulation The
size of the heat generating equipment can be reduced
when designed with an efficient insulation system In
some cases insulation is essential to an industrylsquos very
existence as with the power the process and
the cold storage
However the most substantial return on an investment
in insulation is in energy savings over a period of timeThese savings are becoming more and more empha-
sized in the industrial insulation field as energy costs
rise coupled with the fact that industrial plants and
utilities usually account for about half of the total en-
ergy consumption
Recently the environmental impact of new renovated
or relocated industrial and commercial facilities has
taken on new importance Thermal insulation is one of
the most if not the most significant technology used
to conserve energy thereby reducing pollution Besides
minimizing heat loss insulation increases process ef-
ficiency helps maintain employee safety comfort and
production
For their thermal protection of various industrial appli-
cations it is a necessity to design and use such insula-
tion material that meet operating conditions Isover will
help you find the most suitable insulation product for
given application
4-5
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HEAT FLOW TRANSMISSION
Heat transfer is carried out by three heat transmission
modes conduction convection and radiation
Conduction
Heat transfers from warmer surface to colder through
solid material or gas (by fibres in mineral wool
insulations) The more insulant the material the less
the conduction
Convection
Transfer of heat caused by air movements (because of
temperature and density gradient) Hot air moves up
and heat dissipates The quieter the air the less the
convection Convection can be natural (when calculating
insulation inside the building) or forced (for calculation
outside where wind blows)
Radiation
Each material absorbs or emits thermal radiations
depending on its temperature and its emissivity Unlike
conduction or convection heat can be transferred by
radiation also in a vacuum When radiation is absorbed
or reflected there is less thermal transfer Measure of
radiating capacity of a material is emissivity ε Absolute
black body has the highest emissivity (ε = 1) Rough
and dark surfaces approaches such value (for example
mineral wool insulation without jacketing ε = 094)
contrary to bright and smooth surfaces that have very
low emissivity (for example polished aluminium foil ε
= 005) For design it is necessary to take into account
that covering of the bright surface with dust will
increase emissivity significantly
These three transport mechanisms are applied in
two very important quantities ndash surface heat transfer
coefficient α and thermal transmittance U
Thermal insulations impede conduction convection and
radiative effects
by creating a thermal barrier against conductionby suppressing air movements
by limiting radiative effects
Surface heat transfer coefficient
Two heat transmissions (convection and radiation)
influence the heat transfer coefficient α [W(m2middotK)] The
higher the heat transfer coefficient the higher the heat
flow rate from a warm surface
Thermal transmittance
Thermal transmittance (also called Overall heat transfer
coefficient) U (for flat surfaces [W(m2middotK)] for pipes [W
(mmiddotK)]) is inverted value of thermal resistance and it
takes into account the influence of all heat transmission
modes (conduction convection and radiation)
For multi-layer wall
For multi-layer hollow cylinder
where
d hellip thickness of the insulation layer [m]
λ hellip design thermal conductivity of the
insulation product [W(mmiddotK)]
αi hellip internal heat transfer coefficient (at the
medium side)
αe hellip external heat transfer coefficient (at the
ambient side)
R hellip thermal resistance of the multi-layer wall[m2middotKW]
Rsi hellip internal surface resistence [m2middotKW]
Rse
hellip external surface resistence [m2middotKW]
Internal surface resistence of the inner side of the pipe
or wall is very low and therefore it is often neglected in
practical engineering calculations Only in air ducts it is
necessary to calculate it
Details for calculations can be found in the standard
EN ISO 12 241
Materialsrsquo emissivity
Insulation jacketing ε [-]
Aluminium foil bright 005
Aluminium slightly oxidized 013
Stainless steel 015
Aluzinc sheet 018
Galvanized sheet 026
Iron oxidised 030Aluminium stucco-design 040
Brass browned 042
Paint white 085
PVC paint coated sheet metal 090
Paint black 092
Plain mineral wool 094
Temperature gradient in a material
(wall pipe insulation)
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INSULATION SYSTEM DESIGN
GENERAL
An insulation system is the combination of insulations
finishes and application methods which are used toachieve specific design objectives Among these are
Energy savings
Reduced operating costs
Condensation control
Chemical compatibility with the metals being
insulated the atmosphere to which the system
will be exposed and the various components of the
insulation system itself
Protection of mechanical and insulation systems
from mechanical abuse and atmospheric damage
Personnel protection
Fire protection
Sound control
Future requirements for access to piping fittings etc
Accommodation to limited clearances or work space
While there are several choices of insulation materials
which meet basic thermal and cost-effective
requirements of an installation choices become more
limited with each additional design objective that
comes into play
INSULATION THICKNESS CALCULATION
When calculating the thickness of the insulation it isessential to put in appropriate boundary conditions lt
should be noted that the steady-state calculations are
dependent on boundary conditions Often a solution
at one set of boundary conditions is not sufficient to
characterize a thermal system which will operate in a
changing thermal environment (process equipment
operating year-round outdoors for example) In such
cases local weather data based on yearly averages or
yearly extremes of the weather variables should be
used for the calculations
The heat flow through a surface at any point is a function
of several variables which are not directly related
to insulation quality Among others these variables
include ambient temperature movement of the air
roughness and emissivity of the heat flow surface and
the radiation exchange with the surroundings (often
including a great variety of interest) For the calculation
of dew formation variability of the local humidity is animportant factor
Insulation desigh criterion
Apart from a choice of suitable insulation material
for given application it is essential to design proper
insulation thickness It can be determined from two
points of view
Heat loss minimalisation it means reaching the highest
possible economic savings (ideally to calcutate economic
insulation by so- called optimalisation)
Maximum surface temperature (personal protection
against burn) It is usually prescribed by nationallegislation Usual maximum surface temperature is
50 degC if the surrounding air temperature is 25 degC If the
air temperature is different temperature difference
between surface and surrounding air should be up to
25 degC Outdoor piping shall be controlled for maximum
surface temperature every time for summer period
(in the Central Europe calculation air temperature is
30 degC) In boiler rooms surrounding air temperature is
minimally 35 degC
Parameters influencing insulation thick-
ness designHeat flow from the insulation surface is a function of
several parameters which do not relate directly to the
quality of the insulation Here are several parameters
that influence design
thermal conductivity of the insulation material
medium temperature
ambient temperature
external heat transfer coefficient
ECONOMIC THICKNESS
The most substantial return on an investment ininsulation is in energy savings over a period of time
Thermal insulation is one of the most if not the most
significant technology used to conserve energy thereby
reducing pollution Rising energy costs guarantee an
increasing return on any investment made in insulation
In fact it costs less to insulate than not to In the case
of steam process and heat the difference in capital
investment necessary to provide equipment for the
extra steam capacity needed on underinsulated systems
and that investment necessary to insulate plus the
cost of insulation still represents a significant capital
investment savings That insulation saves money is not
the issue here The issue is how much
6-7
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Economic thickness calculations are based on the law
of diminishing returns Because no insulation material
can completely stop the flow of heat each increment ofinsulation added to the thickness saves only a percentage
of the heat which has escaped through the underlying
insulation Therefore each increment of insulation
saves less than the one before it and must be evaluated
against the cost of installation to determine if it is a
ldquogood investmentrdquo It is possible to determine how much
insulation applied to a given system will repay its initial
costs in a specified time This point is reached when the
cost of the last incremental of insulation added is offset
by the savings generated by that increment
Refer to the stetch on the left The vertical scale is the
annual cost The horizontal scale is insulation thickness
As the insulation thickness increases from 0 the cost of
heat loss through the insulation decreases Note that this
cost (line B) tends to approach a horizontal line at high
thicknesses As the insulation thickness increases the
cost of the insulation also increases (line A) The total
annual cost at any insulation thickness is the sum of the
cost of the insulation and the cost of the lost heat (line
C) Line C goes through a minimum value of total annual
cost at the Economic thickness
With thicknesses less than the economic thickness the
total annual cost is higher because of the higher valueof the cost of lost heat With thicknesses higher than
the economic thickness the total annual cost is higher
because of the higher value of the cost of the insulation
In the case of computer results each pipe size will be
listed with the recommended thickness as well as
the average heat savings (as compared to a pre-listed
thickness or bare surface whichever chosen) and the
present value of the heat saved
In order to use any of the available manuals tables
or computer programs the two cost factors (cost of
lost energy and cost of insulation) must be found Thefollowing data is generally provided by the investor
Cost of lost energy
This factor is derived from the combination of the
rate of energy transfer the cost of energy and the
operational hours per year of the building Computing
the rate of energy transfer requires surface and
ambient temperatures thermal conductivity of the
chosen insulation the maximumminimum thickness of
insulation to be considered surface emissivity and last
but not least consideration of surface orientation (i evertical horizontal) and wind (air) velocity
Cost of insulation
This factor is derived from computing a bdquounit installed
price of insulationldquo with the total cost annualized overthe projectacutes life The unit installed price is a combination
of the cost of materials cost of labor and worker
productivity This is a sensitive variable in the economic
thickness calculation Only the roughest of regional
averages are available As a result care must be taken not
to perceive these estimates as fixed budget prices used
for installing insulation Material prices are related to the
volume and cost of the insulation jacketing securement
finishing and structural support material used Also
included in this figure are storage and handling costs to
the contractor Labor costs vary regionally and include
wages fringe benefits per diem and travel expensesas well as overhead and profit Labor production varies
with pipe size complexity number of layers necessary
accessibility of piping and surfaces type of materials
used and general working conditions Other costs
involve the job size and increase with the magnitude of
the job They include the preparation scaffolding clean-
up and tear-down costs supervision costs and general
overhead
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ISOCALreg
For economic thickness calculation program IsoCal
can be used The program also handles the followingcalculations
heat loss calculation
temperature change in pipes or ducts
temperature change in a tank
internal or external condensation
frost protection of water pipes
sound attenuation in ducts
IsoCalreg is a computer program for calculations of
thermal insulation for building equipment and
industrial installations The program mainly calculates
according to EN ISO 12 241 IsoCalreg has been developedprimarily for Saint-Gobain Isoverrsquos range of insulation
products it is however possible to perform more
generic calculations For more information about the
English version 10 please contact your local Isover
representative
MAXIMUM SERVICE TEMPERATURE
MST is determined in a laboratory by testing under de-
fined conditions which are dependent upon the form
of delivery and which are laid down in EN 14 706 (for
wired or lamella mats slabs and felts) and EN 14 707(for pipe sections and segments) MST is determined
by establishing the temperature and time related de-
crease in thickness in one-sided heating For the test
the sample shall take a load of 500 Pa The sample is
heated with a transient of at least 5 Kmin The hot-
face temperature must be maintained for 72 hours at
the expected maximum service temperature At the
maximum service temperature no test result must dis-
play a deformation under load of more than 5
In data sheets of different producers (not only mineral
wool) you will often find MST and value which is not
measured accordance to EN 14 706 This temperature
is only assumed When using such temperature there
is a danger of insulation degradation mainly insulation
thickness If mineral wool product has MST 700 or 750 degC
in its data sheet you can be sure that the material will
not withstand such temperature without degradation
of assessed properties Such temperatures shall not
be used Producers should leave field of assumed MST
and test their products to be able to use declared
MST according to EN 14 706 It is an outstandingimprovement compared to the past because individual
products on the European market can be compared to
each other according to standards valid in the EU
Slabs wired and lamella mats Orstech are certificated
according to valid European standards they are
regularly tested in testing laboratory FIW Muumlnchen
according to VDI 2055 and AGI Q 132 Maximum service
temperatures for various products can be found at the
end of the catalogue in the chapter Isover Products on
page 21)
EVAPORATION OF BINDERS
Binders and greasing agents in mineral wool products
dissolve and evaporate in areas with temperatures
higher than 150 degC Binder evaporation does not have any
influence on thermal properties only the compactness
of a material is decreased If proper underconstruction
is made there is almost no danger of insulation slide
down But if too small insulation thickness or improper
type of insulation is used (mostly insulation with too
low density for too high temperatures) danger of binder
evaporation in the whole thickness is possible with
consequent insulation slide down In this case no well
made underconstruction will help Insulation will not
work any more In the outer colder areas no dissolution
and evaporation take place
Density influence on thermal conductivity
Temperature influence on thermal conductivity for slabsORSTECH
8-9
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FIRE PERFORMANCE
FIRE ndash a chemical reaction involving rapid oxidation or
burning of a fuel occurs only when three elements are
present in the proper conditions and proportions
FUEL ndash Fuel can be any combustible material - solid
liquid or gas Most solids and liquids become a vapour
or gas before they burn
OXYGEN ndash The air we breathe is about 21 oxygen Fire
only needs an atmosphere with at least 16 oxygen
HEAT ndash Heat is the energy necessary to increase the
temperature of the fuel to a point where sufficient
vapours are given off for ignition to occur
Fire development depends mostly on room geometry
and ventilation the fuel type the amount and surface
area of the fuel Fire is often discussed in terms of the
temperature development and can be divided into
different stages incipience (ignition) growth flashover
fully developed fire and decay
How materials behave in the early stages of a fire from
ignition to flashover (the spontaneous ignition of hot
smoke and gasses) needs to be assessed at the design
stage for buildings and also for plants and equipment
Euroclasses a new European harmonised classification
system for materialsrsquo reaction to fire in most Europeancountries replaced the old national standards The
Euroclass fire classification covers not only materials
used in building structures but it is being extended also
to technical insulations to cover building equipment
and industrial installations This will help to compare
the reaction to fire of different thermal insulation
materials
The classification levels are A1A2 (completely non-
combustible) B C D E and F A1A2 corresponds to
the safest situation E would be the most dangerous
situation and F would mean not classified
ISOVER mineral wool insulations are totally non-
combustible and completely fire safe achieving
Euroclass A1 fire rating (A2 for products with facing)when classified in accordance with EN 13501-1 One
of the most important issues studied under reaction to
fire performance is the potential for flashover to occur
which can lead to a fire spreading uncontrollably Isover
stone wool is not susceptible to flashover
This is a guide to common building materials and their
likely Euroclassification
Check with individual product manufactures for spedific
product specifications
REACTION TO FIRE
Smoke and flaming droplet risk(1) In the EU classification system for reaction to fire
a construction product will be classified as Euroclass A1
A2 B C D E or F depending on its tendency to burn
(2) The product testing will provide data represented
by the signs s1 s2 or s3 which indicate the tendency
to release smoke Smoke causes over 60 of deaths in
fire across the EU The measurement of smoke release
has been put into these 3 broad bands that can be
translated as ldquolittle or no smokerdquo s1 - rdquoquite a lot of
smokerdquo s2 - rdquosubstantial smoke releaserdquo s3
(3) Some construction products like these made of
polystyrene can melt and ignite to form Flaming
Droplets Wooden products on the other hand will tend
to char before the char falls away as Flaming Particles
to expose more material
These rdquoflaming dropletsparticlesrdquo will tend to
initiate new fires away from the original point of
ignition and must be considered when the products
are used horizontally in ceiling or roof applications
The classification system ranks the level of release of
flaming dropletsparticles as d0 (none) d1 (some) and
d2 (quite a lot)
Commno materials and likely Euroclass
Euroclass Flashover potential Example materials
A1 amp A2 No Glass and stone mineral wool concrete brick and plasterboard
B No Typically timber products
C Yes 10 minutes Phenolic foam (foil faced) synthetic rubber
D Yes 2-10 minutes Expanded polystyrene type A extruded polystyrene polyisocyanurate foam (foil faced)
E Yes lt 2 minutes Pylyurethane foam (laminate faced) polyisocyanurate foam (sprayed)
F Yes Early failure or no data Expanded polystyrene type N untested or fails Euroclass E
Reaction to fire
H E A T
F U E L
OXYGEN
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
8122019 Catalogue of Technical Insulations 2013-10-598 En
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
8122019 Catalogue of Technical Insulations 2013-10-598 En
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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AS QUALITY
Corrosion of stainless steel surfaces under insulation
is an often discussed issue Highly alloyed austenitic
steel (alloyed by chrome nickel and molybdenum) are
predisposed to tensile stress corrosion (stress corrosion
cracking) which is caused by chloride ions Austenitic
is a description of crystalline steel structure therefore
identified as AS Chlorides with water (well-known
is classical salt) attack steel surface and cause cracks
in the material With increasing surface temperature
the danger of stress corrosion cracking is raised To
minimise this danger mineral wool insulations in AS
quality are available for this application Standard AGI
Q 132 determines maximum content of chloride ions of
10 mg in 1 kg of the insulation material Mineral woolinsulations may be used for insulating objects made
of stainless austenitic steels if the content meets the
requirement Isover stone wool technical insulations
meet the requirement of AGI Q 132
THERMAL CONDUCTIVITY
One of the most important parameters of insulations is
their thermal conductivity named lambda value λ [W
(mK)] Thermal conductivity measures the capacity of a
material to lead or to resist heat transfer The smaller
the lambda value the better the thermal insulation
The thermal performance of mineral wool is achievedthrough the entrapment of air within the material Its
thermal conductivity does not deteriorate over time
For slabs mats felts and loose mineral wool the
thermal conductivity is determined in the hot box
tester according to EN 12 667 The determination of the
thermal conductivity of sections is in the pipe tester
according to EN ISO 8497 For lamella mats and wired
mats the thermal conductivity is measured in the hot
box and in the pipe tester The thermal conductivity of
mineral wool insulations has to be determined up to the
maximum service temperature (hot face) as a function
of the mean temperature (arithmetic mean betweenobject and surface temperature)
The thermal conductivity varies with temperatures and
with densities The higher the density the higher the
thermal performance at high temperature surfaces In
our product data sheets declared lambda-values λD
are
used these values are fulfilled within every product
A designer will be on the safe side when using our
declared lambda-values That means allowances for
workmanship spacers and supporting constructions
are made Possible inaccuracies caused by calculation
equations can be eliminated
MELTING POINT OF MINERAL WOOL
PRODUCTS
The melting point of mineral wool is determined
according to DIN 4102 part 17 It is a parameter for
the durability of mineral wool insulations in building
components in case of fire It must not be confused
with the maximum service temperature and has no
relation to the service temperature Mineral wool
insulations have the melting point higher than 1000 degC
usually in the range from 1200 to 1600 degC
MAXIMUM SERVICE TEMPERATURE
Maximum service temperature according to EN 14 706
(for wired mats lamella mats and slabs) and EN 14 707
(for pipe sections) ranging from 250 to 700 degC MST for
various products can be found in a Product data sheet
or at the end of the catalogue in the chapter Isover
Products on page 23
FIRE RESISTANCE
Mineral wool products Isover are completely non-
combustible they resist to high temperatures and thus
prevent fire spread The classification levels according
to EN 13 501-1 are A1 possibly A2 for materials with
a facing
ACOUSTIC PROPERTIESIsover mineral wool products have a fibre structure
and therefore reach excellent noise attenuation for
example from HVAC services (pipework ductwork
and air handling equipment) and other services An
absorbent layer of mineral wool has the best absorption
capacity in the medium and high frequencies (under
such conditions it can have absorption coefficient up to
98 (α = 095)) The absorption in the low frequencies
is improved by increasing the thickness or by providing
an air gap behind the absorbent layer
RESISTANT TO BIOLOGICAL PESTSMineral wool insulation is resistent to wood-destroying
pests rodents and insects They are rot-proof and do
not sustain growth of mould
LOW THERMAL EXPANSION
Mineral wool insulations have almost zero thermal
expansion with changing temperatures
MOISTURE AND WATER REPELLENCE
All Isover products are treated during manufacture with
special additives which make them water repellent
Isover products are a hydrophobic non-hygroscopicinsulation material If Isover products get wet they
dry out quickly as a result of the open structure and its
mechanical and insulating properties are unaffected
after drying For outdoor application metal steel
jacketing is unconditional ly required
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BASIC FUNCTIONS OF TECHNICAL INSULATIONS
Insulations are defined as those materials which retard
the flow of heat energy by performing one or more of
the following functions
Energy conservation minimizing unwanted heat loss
gain from building HVAC systems as well as preserv-
ing natural and financial resources
Personnel protection controlling surface tempera-tures to avoid contact burns (hot or cold) ndash maximum
surface temperature criterion
Condensation control minimizing condensation by
keeping the surface temperature above the dew point
of surrounding air
Prevent internal condensation in pipes
Process control minimizing temperature change in
process fluids where close control is needed
Increase operating efficiency of heating ventilating
cooling plumbing steam process and power systems
found in commercial and industrial installations
Freeze protection minimizing energy required for
heat tracing systems andor extending the time to
freeze in the event of system failure Freeze protec-
tion of vessels and tanks with various accumulated
fluids or fuels
Noise control reducingcontrolling noise in mechani-
cal systems
Fire safety protecting critical building elements and
slowing the spread of fire in buildings
The application of thermal insulation on pipe vessels
and ducts is recognized as a necessary requirement in
any construction activity The thickness and extent of
insulation required has always been subject to arbi-
trary and imprecise decisions with little engineering or
economic input No material incorporated in a modern
construction project provides the owner with as good
a financial return throughout the life of the facility as
does insulation
The investment in insulation may protect the equip-
ment and personnel present during the life of the facil-
ity Proper insulation prevents condensation chemical
corrosion and excessive heat in fire hazard areas Added
human comfort provided by proper insulation in hotelsoffice buildings schools or factories adds considerably
to the value of the facility and productivity of its per-
sonnel Process temperatures in heat traced piping are
more efficiently maintained with proper insulation The
size of the heat generating equipment can be reduced
when designed with an efficient insulation system In
some cases insulation is essential to an industrylsquos very
existence as with the power the process and
the cold storage
However the most substantial return on an investment
in insulation is in energy savings over a period of timeThese savings are becoming more and more empha-
sized in the industrial insulation field as energy costs
rise coupled with the fact that industrial plants and
utilities usually account for about half of the total en-
ergy consumption
Recently the environmental impact of new renovated
or relocated industrial and commercial facilities has
taken on new importance Thermal insulation is one of
the most if not the most significant technology used
to conserve energy thereby reducing pollution Besides
minimizing heat loss insulation increases process ef-
ficiency helps maintain employee safety comfort and
production
For their thermal protection of various industrial appli-
cations it is a necessity to design and use such insula-
tion material that meet operating conditions Isover will
help you find the most suitable insulation product for
given application
4-5
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HEAT FLOW TRANSMISSION
Heat transfer is carried out by three heat transmission
modes conduction convection and radiation
Conduction
Heat transfers from warmer surface to colder through
solid material or gas (by fibres in mineral wool
insulations) The more insulant the material the less
the conduction
Convection
Transfer of heat caused by air movements (because of
temperature and density gradient) Hot air moves up
and heat dissipates The quieter the air the less the
convection Convection can be natural (when calculating
insulation inside the building) or forced (for calculation
outside where wind blows)
Radiation
Each material absorbs or emits thermal radiations
depending on its temperature and its emissivity Unlike
conduction or convection heat can be transferred by
radiation also in a vacuum When radiation is absorbed
or reflected there is less thermal transfer Measure of
radiating capacity of a material is emissivity ε Absolute
black body has the highest emissivity (ε = 1) Rough
and dark surfaces approaches such value (for example
mineral wool insulation without jacketing ε = 094)
contrary to bright and smooth surfaces that have very
low emissivity (for example polished aluminium foil ε
= 005) For design it is necessary to take into account
that covering of the bright surface with dust will
increase emissivity significantly
These three transport mechanisms are applied in
two very important quantities ndash surface heat transfer
coefficient α and thermal transmittance U
Thermal insulations impede conduction convection and
radiative effects
by creating a thermal barrier against conductionby suppressing air movements
by limiting radiative effects
Surface heat transfer coefficient
Two heat transmissions (convection and radiation)
influence the heat transfer coefficient α [W(m2middotK)] The
higher the heat transfer coefficient the higher the heat
flow rate from a warm surface
Thermal transmittance
Thermal transmittance (also called Overall heat transfer
coefficient) U (for flat surfaces [W(m2middotK)] for pipes [W
(mmiddotK)]) is inverted value of thermal resistance and it
takes into account the influence of all heat transmission
modes (conduction convection and radiation)
For multi-layer wall
For multi-layer hollow cylinder
where
d hellip thickness of the insulation layer [m]
λ hellip design thermal conductivity of the
insulation product [W(mmiddotK)]
αi hellip internal heat transfer coefficient (at the
medium side)
αe hellip external heat transfer coefficient (at the
ambient side)
R hellip thermal resistance of the multi-layer wall[m2middotKW]
Rsi hellip internal surface resistence [m2middotKW]
Rse
hellip external surface resistence [m2middotKW]
Internal surface resistence of the inner side of the pipe
or wall is very low and therefore it is often neglected in
practical engineering calculations Only in air ducts it is
necessary to calculate it
Details for calculations can be found in the standard
EN ISO 12 241
Materialsrsquo emissivity
Insulation jacketing ε [-]
Aluminium foil bright 005
Aluminium slightly oxidized 013
Stainless steel 015
Aluzinc sheet 018
Galvanized sheet 026
Iron oxidised 030Aluminium stucco-design 040
Brass browned 042
Paint white 085
PVC paint coated sheet metal 090
Paint black 092
Plain mineral wool 094
Temperature gradient in a material
(wall pipe insulation)
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INSULATION SYSTEM DESIGN
GENERAL
An insulation system is the combination of insulations
finishes and application methods which are used toachieve specific design objectives Among these are
Energy savings
Reduced operating costs
Condensation control
Chemical compatibility with the metals being
insulated the atmosphere to which the system
will be exposed and the various components of the
insulation system itself
Protection of mechanical and insulation systems
from mechanical abuse and atmospheric damage
Personnel protection
Fire protection
Sound control
Future requirements for access to piping fittings etc
Accommodation to limited clearances or work space
While there are several choices of insulation materials
which meet basic thermal and cost-effective
requirements of an installation choices become more
limited with each additional design objective that
comes into play
INSULATION THICKNESS CALCULATION
When calculating the thickness of the insulation it isessential to put in appropriate boundary conditions lt
should be noted that the steady-state calculations are
dependent on boundary conditions Often a solution
at one set of boundary conditions is not sufficient to
characterize a thermal system which will operate in a
changing thermal environment (process equipment
operating year-round outdoors for example) In such
cases local weather data based on yearly averages or
yearly extremes of the weather variables should be
used for the calculations
The heat flow through a surface at any point is a function
of several variables which are not directly related
to insulation quality Among others these variables
include ambient temperature movement of the air
roughness and emissivity of the heat flow surface and
the radiation exchange with the surroundings (often
including a great variety of interest) For the calculation
of dew formation variability of the local humidity is animportant factor
Insulation desigh criterion
Apart from a choice of suitable insulation material
for given application it is essential to design proper
insulation thickness It can be determined from two
points of view
Heat loss minimalisation it means reaching the highest
possible economic savings (ideally to calcutate economic
insulation by so- called optimalisation)
Maximum surface temperature (personal protection
against burn) It is usually prescribed by nationallegislation Usual maximum surface temperature is
50 degC if the surrounding air temperature is 25 degC If the
air temperature is different temperature difference
between surface and surrounding air should be up to
25 degC Outdoor piping shall be controlled for maximum
surface temperature every time for summer period
(in the Central Europe calculation air temperature is
30 degC) In boiler rooms surrounding air temperature is
minimally 35 degC
Parameters influencing insulation thick-
ness designHeat flow from the insulation surface is a function of
several parameters which do not relate directly to the
quality of the insulation Here are several parameters
that influence design
thermal conductivity of the insulation material
medium temperature
ambient temperature
external heat transfer coefficient
ECONOMIC THICKNESS
The most substantial return on an investment ininsulation is in energy savings over a period of time
Thermal insulation is one of the most if not the most
significant technology used to conserve energy thereby
reducing pollution Rising energy costs guarantee an
increasing return on any investment made in insulation
In fact it costs less to insulate than not to In the case
of steam process and heat the difference in capital
investment necessary to provide equipment for the
extra steam capacity needed on underinsulated systems
and that investment necessary to insulate plus the
cost of insulation still represents a significant capital
investment savings That insulation saves money is not
the issue here The issue is how much
6-7
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Economic thickness calculations are based on the law
of diminishing returns Because no insulation material
can completely stop the flow of heat each increment ofinsulation added to the thickness saves only a percentage
of the heat which has escaped through the underlying
insulation Therefore each increment of insulation
saves less than the one before it and must be evaluated
against the cost of installation to determine if it is a
ldquogood investmentrdquo It is possible to determine how much
insulation applied to a given system will repay its initial
costs in a specified time This point is reached when the
cost of the last incremental of insulation added is offset
by the savings generated by that increment
Refer to the stetch on the left The vertical scale is the
annual cost The horizontal scale is insulation thickness
As the insulation thickness increases from 0 the cost of
heat loss through the insulation decreases Note that this
cost (line B) tends to approach a horizontal line at high
thicknesses As the insulation thickness increases the
cost of the insulation also increases (line A) The total
annual cost at any insulation thickness is the sum of the
cost of the insulation and the cost of the lost heat (line
C) Line C goes through a minimum value of total annual
cost at the Economic thickness
With thicknesses less than the economic thickness the
total annual cost is higher because of the higher valueof the cost of lost heat With thicknesses higher than
the economic thickness the total annual cost is higher
because of the higher value of the cost of the insulation
In the case of computer results each pipe size will be
listed with the recommended thickness as well as
the average heat savings (as compared to a pre-listed
thickness or bare surface whichever chosen) and the
present value of the heat saved
In order to use any of the available manuals tables
or computer programs the two cost factors (cost of
lost energy and cost of insulation) must be found Thefollowing data is generally provided by the investor
Cost of lost energy
This factor is derived from the combination of the
rate of energy transfer the cost of energy and the
operational hours per year of the building Computing
the rate of energy transfer requires surface and
ambient temperatures thermal conductivity of the
chosen insulation the maximumminimum thickness of
insulation to be considered surface emissivity and last
but not least consideration of surface orientation (i evertical horizontal) and wind (air) velocity
Cost of insulation
This factor is derived from computing a bdquounit installed
price of insulationldquo with the total cost annualized overthe projectacutes life The unit installed price is a combination
of the cost of materials cost of labor and worker
productivity This is a sensitive variable in the economic
thickness calculation Only the roughest of regional
averages are available As a result care must be taken not
to perceive these estimates as fixed budget prices used
for installing insulation Material prices are related to the
volume and cost of the insulation jacketing securement
finishing and structural support material used Also
included in this figure are storage and handling costs to
the contractor Labor costs vary regionally and include
wages fringe benefits per diem and travel expensesas well as overhead and profit Labor production varies
with pipe size complexity number of layers necessary
accessibility of piping and surfaces type of materials
used and general working conditions Other costs
involve the job size and increase with the magnitude of
the job They include the preparation scaffolding clean-
up and tear-down costs supervision costs and general
overhead
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ISOCALreg
For economic thickness calculation program IsoCal
can be used The program also handles the followingcalculations
heat loss calculation
temperature change in pipes or ducts
temperature change in a tank
internal or external condensation
frost protection of water pipes
sound attenuation in ducts
IsoCalreg is a computer program for calculations of
thermal insulation for building equipment and
industrial installations The program mainly calculates
according to EN ISO 12 241 IsoCalreg has been developedprimarily for Saint-Gobain Isoverrsquos range of insulation
products it is however possible to perform more
generic calculations For more information about the
English version 10 please contact your local Isover
representative
MAXIMUM SERVICE TEMPERATURE
MST is determined in a laboratory by testing under de-
fined conditions which are dependent upon the form
of delivery and which are laid down in EN 14 706 (for
wired or lamella mats slabs and felts) and EN 14 707(for pipe sections and segments) MST is determined
by establishing the temperature and time related de-
crease in thickness in one-sided heating For the test
the sample shall take a load of 500 Pa The sample is
heated with a transient of at least 5 Kmin The hot-
face temperature must be maintained for 72 hours at
the expected maximum service temperature At the
maximum service temperature no test result must dis-
play a deformation under load of more than 5
In data sheets of different producers (not only mineral
wool) you will often find MST and value which is not
measured accordance to EN 14 706 This temperature
is only assumed When using such temperature there
is a danger of insulation degradation mainly insulation
thickness If mineral wool product has MST 700 or 750 degC
in its data sheet you can be sure that the material will
not withstand such temperature without degradation
of assessed properties Such temperatures shall not
be used Producers should leave field of assumed MST
and test their products to be able to use declared
MST according to EN 14 706 It is an outstandingimprovement compared to the past because individual
products on the European market can be compared to
each other according to standards valid in the EU
Slabs wired and lamella mats Orstech are certificated
according to valid European standards they are
regularly tested in testing laboratory FIW Muumlnchen
according to VDI 2055 and AGI Q 132 Maximum service
temperatures for various products can be found at the
end of the catalogue in the chapter Isover Products on
page 21)
EVAPORATION OF BINDERS
Binders and greasing agents in mineral wool products
dissolve and evaporate in areas with temperatures
higher than 150 degC Binder evaporation does not have any
influence on thermal properties only the compactness
of a material is decreased If proper underconstruction
is made there is almost no danger of insulation slide
down But if too small insulation thickness or improper
type of insulation is used (mostly insulation with too
low density for too high temperatures) danger of binder
evaporation in the whole thickness is possible with
consequent insulation slide down In this case no well
made underconstruction will help Insulation will not
work any more In the outer colder areas no dissolution
and evaporation take place
Density influence on thermal conductivity
Temperature influence on thermal conductivity for slabsORSTECH
8-9
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FIRE PERFORMANCE
FIRE ndash a chemical reaction involving rapid oxidation or
burning of a fuel occurs only when three elements are
present in the proper conditions and proportions
FUEL ndash Fuel can be any combustible material - solid
liquid or gas Most solids and liquids become a vapour
or gas before they burn
OXYGEN ndash The air we breathe is about 21 oxygen Fire
only needs an atmosphere with at least 16 oxygen
HEAT ndash Heat is the energy necessary to increase the
temperature of the fuel to a point where sufficient
vapours are given off for ignition to occur
Fire development depends mostly on room geometry
and ventilation the fuel type the amount and surface
area of the fuel Fire is often discussed in terms of the
temperature development and can be divided into
different stages incipience (ignition) growth flashover
fully developed fire and decay
How materials behave in the early stages of a fire from
ignition to flashover (the spontaneous ignition of hot
smoke and gasses) needs to be assessed at the design
stage for buildings and also for plants and equipment
Euroclasses a new European harmonised classification
system for materialsrsquo reaction to fire in most Europeancountries replaced the old national standards The
Euroclass fire classification covers not only materials
used in building structures but it is being extended also
to technical insulations to cover building equipment
and industrial installations This will help to compare
the reaction to fire of different thermal insulation
materials
The classification levels are A1A2 (completely non-
combustible) B C D E and F A1A2 corresponds to
the safest situation E would be the most dangerous
situation and F would mean not classified
ISOVER mineral wool insulations are totally non-
combustible and completely fire safe achieving
Euroclass A1 fire rating (A2 for products with facing)when classified in accordance with EN 13501-1 One
of the most important issues studied under reaction to
fire performance is the potential for flashover to occur
which can lead to a fire spreading uncontrollably Isover
stone wool is not susceptible to flashover
This is a guide to common building materials and their
likely Euroclassification
Check with individual product manufactures for spedific
product specifications
REACTION TO FIRE
Smoke and flaming droplet risk(1) In the EU classification system for reaction to fire
a construction product will be classified as Euroclass A1
A2 B C D E or F depending on its tendency to burn
(2) The product testing will provide data represented
by the signs s1 s2 or s3 which indicate the tendency
to release smoke Smoke causes over 60 of deaths in
fire across the EU The measurement of smoke release
has been put into these 3 broad bands that can be
translated as ldquolittle or no smokerdquo s1 - rdquoquite a lot of
smokerdquo s2 - rdquosubstantial smoke releaserdquo s3
(3) Some construction products like these made of
polystyrene can melt and ignite to form Flaming
Droplets Wooden products on the other hand will tend
to char before the char falls away as Flaming Particles
to expose more material
These rdquoflaming dropletsparticlesrdquo will tend to
initiate new fires away from the original point of
ignition and must be considered when the products
are used horizontally in ceiling or roof applications
The classification system ranks the level of release of
flaming dropletsparticles as d0 (none) d1 (some) and
d2 (quite a lot)
Commno materials and likely Euroclass
Euroclass Flashover potential Example materials
A1 amp A2 No Glass and stone mineral wool concrete brick and plasterboard
B No Typically timber products
C Yes 10 minutes Phenolic foam (foil faced) synthetic rubber
D Yes 2-10 minutes Expanded polystyrene type A extruded polystyrene polyisocyanurate foam (foil faced)
E Yes lt 2 minutes Pylyurethane foam (laminate faced) polyisocyanurate foam (sprayed)
F Yes Early failure or no data Expanded polystyrene type N untested or fails Euroclass E
Reaction to fire
H E A T
F U E L
OXYGEN
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
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8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2828
A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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BASIC FUNCTIONS OF TECHNICAL INSULATIONS
Insulations are defined as those materials which retard
the flow of heat energy by performing one or more of
the following functions
Energy conservation minimizing unwanted heat loss
gain from building HVAC systems as well as preserv-
ing natural and financial resources
Personnel protection controlling surface tempera-tures to avoid contact burns (hot or cold) ndash maximum
surface temperature criterion
Condensation control minimizing condensation by
keeping the surface temperature above the dew point
of surrounding air
Prevent internal condensation in pipes
Process control minimizing temperature change in
process fluids where close control is needed
Increase operating efficiency of heating ventilating
cooling plumbing steam process and power systems
found in commercial and industrial installations
Freeze protection minimizing energy required for
heat tracing systems andor extending the time to
freeze in the event of system failure Freeze protec-
tion of vessels and tanks with various accumulated
fluids or fuels
Noise control reducingcontrolling noise in mechani-
cal systems
Fire safety protecting critical building elements and
slowing the spread of fire in buildings
The application of thermal insulation on pipe vessels
and ducts is recognized as a necessary requirement in
any construction activity The thickness and extent of
insulation required has always been subject to arbi-
trary and imprecise decisions with little engineering or
economic input No material incorporated in a modern
construction project provides the owner with as good
a financial return throughout the life of the facility as
does insulation
The investment in insulation may protect the equip-
ment and personnel present during the life of the facil-
ity Proper insulation prevents condensation chemical
corrosion and excessive heat in fire hazard areas Added
human comfort provided by proper insulation in hotelsoffice buildings schools or factories adds considerably
to the value of the facility and productivity of its per-
sonnel Process temperatures in heat traced piping are
more efficiently maintained with proper insulation The
size of the heat generating equipment can be reduced
when designed with an efficient insulation system In
some cases insulation is essential to an industrylsquos very
existence as with the power the process and
the cold storage
However the most substantial return on an investment
in insulation is in energy savings over a period of timeThese savings are becoming more and more empha-
sized in the industrial insulation field as energy costs
rise coupled with the fact that industrial plants and
utilities usually account for about half of the total en-
ergy consumption
Recently the environmental impact of new renovated
or relocated industrial and commercial facilities has
taken on new importance Thermal insulation is one of
the most if not the most significant technology used
to conserve energy thereby reducing pollution Besides
minimizing heat loss insulation increases process ef-
ficiency helps maintain employee safety comfort and
production
For their thermal protection of various industrial appli-
cations it is a necessity to design and use such insula-
tion material that meet operating conditions Isover will
help you find the most suitable insulation product for
given application
4-5
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HEAT FLOW TRANSMISSION
Heat transfer is carried out by three heat transmission
modes conduction convection and radiation
Conduction
Heat transfers from warmer surface to colder through
solid material or gas (by fibres in mineral wool
insulations) The more insulant the material the less
the conduction
Convection
Transfer of heat caused by air movements (because of
temperature and density gradient) Hot air moves up
and heat dissipates The quieter the air the less the
convection Convection can be natural (when calculating
insulation inside the building) or forced (for calculation
outside where wind blows)
Radiation
Each material absorbs or emits thermal radiations
depending on its temperature and its emissivity Unlike
conduction or convection heat can be transferred by
radiation also in a vacuum When radiation is absorbed
or reflected there is less thermal transfer Measure of
radiating capacity of a material is emissivity ε Absolute
black body has the highest emissivity (ε = 1) Rough
and dark surfaces approaches such value (for example
mineral wool insulation without jacketing ε = 094)
contrary to bright and smooth surfaces that have very
low emissivity (for example polished aluminium foil ε
= 005) For design it is necessary to take into account
that covering of the bright surface with dust will
increase emissivity significantly
These three transport mechanisms are applied in
two very important quantities ndash surface heat transfer
coefficient α and thermal transmittance U
Thermal insulations impede conduction convection and
radiative effects
by creating a thermal barrier against conductionby suppressing air movements
by limiting radiative effects
Surface heat transfer coefficient
Two heat transmissions (convection and radiation)
influence the heat transfer coefficient α [W(m2middotK)] The
higher the heat transfer coefficient the higher the heat
flow rate from a warm surface
Thermal transmittance
Thermal transmittance (also called Overall heat transfer
coefficient) U (for flat surfaces [W(m2middotK)] for pipes [W
(mmiddotK)]) is inverted value of thermal resistance and it
takes into account the influence of all heat transmission
modes (conduction convection and radiation)
For multi-layer wall
For multi-layer hollow cylinder
where
d hellip thickness of the insulation layer [m]
λ hellip design thermal conductivity of the
insulation product [W(mmiddotK)]
αi hellip internal heat transfer coefficient (at the
medium side)
αe hellip external heat transfer coefficient (at the
ambient side)
R hellip thermal resistance of the multi-layer wall[m2middotKW]
Rsi hellip internal surface resistence [m2middotKW]
Rse
hellip external surface resistence [m2middotKW]
Internal surface resistence of the inner side of the pipe
or wall is very low and therefore it is often neglected in
practical engineering calculations Only in air ducts it is
necessary to calculate it
Details for calculations can be found in the standard
EN ISO 12 241
Materialsrsquo emissivity
Insulation jacketing ε [-]
Aluminium foil bright 005
Aluminium slightly oxidized 013
Stainless steel 015
Aluzinc sheet 018
Galvanized sheet 026
Iron oxidised 030Aluminium stucco-design 040
Brass browned 042
Paint white 085
PVC paint coated sheet metal 090
Paint black 092
Plain mineral wool 094
Temperature gradient in a material
(wall pipe insulation)
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INSULATION SYSTEM DESIGN
GENERAL
An insulation system is the combination of insulations
finishes and application methods which are used toachieve specific design objectives Among these are
Energy savings
Reduced operating costs
Condensation control
Chemical compatibility with the metals being
insulated the atmosphere to which the system
will be exposed and the various components of the
insulation system itself
Protection of mechanical and insulation systems
from mechanical abuse and atmospheric damage
Personnel protection
Fire protection
Sound control
Future requirements for access to piping fittings etc
Accommodation to limited clearances or work space
While there are several choices of insulation materials
which meet basic thermal and cost-effective
requirements of an installation choices become more
limited with each additional design objective that
comes into play
INSULATION THICKNESS CALCULATION
When calculating the thickness of the insulation it isessential to put in appropriate boundary conditions lt
should be noted that the steady-state calculations are
dependent on boundary conditions Often a solution
at one set of boundary conditions is not sufficient to
characterize a thermal system which will operate in a
changing thermal environment (process equipment
operating year-round outdoors for example) In such
cases local weather data based on yearly averages or
yearly extremes of the weather variables should be
used for the calculations
The heat flow through a surface at any point is a function
of several variables which are not directly related
to insulation quality Among others these variables
include ambient temperature movement of the air
roughness and emissivity of the heat flow surface and
the radiation exchange with the surroundings (often
including a great variety of interest) For the calculation
of dew formation variability of the local humidity is animportant factor
Insulation desigh criterion
Apart from a choice of suitable insulation material
for given application it is essential to design proper
insulation thickness It can be determined from two
points of view
Heat loss minimalisation it means reaching the highest
possible economic savings (ideally to calcutate economic
insulation by so- called optimalisation)
Maximum surface temperature (personal protection
against burn) It is usually prescribed by nationallegislation Usual maximum surface temperature is
50 degC if the surrounding air temperature is 25 degC If the
air temperature is different temperature difference
between surface and surrounding air should be up to
25 degC Outdoor piping shall be controlled for maximum
surface temperature every time for summer period
(in the Central Europe calculation air temperature is
30 degC) In boiler rooms surrounding air temperature is
minimally 35 degC
Parameters influencing insulation thick-
ness designHeat flow from the insulation surface is a function of
several parameters which do not relate directly to the
quality of the insulation Here are several parameters
that influence design
thermal conductivity of the insulation material
medium temperature
ambient temperature
external heat transfer coefficient
ECONOMIC THICKNESS
The most substantial return on an investment ininsulation is in energy savings over a period of time
Thermal insulation is one of the most if not the most
significant technology used to conserve energy thereby
reducing pollution Rising energy costs guarantee an
increasing return on any investment made in insulation
In fact it costs less to insulate than not to In the case
of steam process and heat the difference in capital
investment necessary to provide equipment for the
extra steam capacity needed on underinsulated systems
and that investment necessary to insulate plus the
cost of insulation still represents a significant capital
investment savings That insulation saves money is not
the issue here The issue is how much
6-7
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Economic thickness calculations are based on the law
of diminishing returns Because no insulation material
can completely stop the flow of heat each increment ofinsulation added to the thickness saves only a percentage
of the heat which has escaped through the underlying
insulation Therefore each increment of insulation
saves less than the one before it and must be evaluated
against the cost of installation to determine if it is a
ldquogood investmentrdquo It is possible to determine how much
insulation applied to a given system will repay its initial
costs in a specified time This point is reached when the
cost of the last incremental of insulation added is offset
by the savings generated by that increment
Refer to the stetch on the left The vertical scale is the
annual cost The horizontal scale is insulation thickness
As the insulation thickness increases from 0 the cost of
heat loss through the insulation decreases Note that this
cost (line B) tends to approach a horizontal line at high
thicknesses As the insulation thickness increases the
cost of the insulation also increases (line A) The total
annual cost at any insulation thickness is the sum of the
cost of the insulation and the cost of the lost heat (line
C) Line C goes through a minimum value of total annual
cost at the Economic thickness
With thicknesses less than the economic thickness the
total annual cost is higher because of the higher valueof the cost of lost heat With thicknesses higher than
the economic thickness the total annual cost is higher
because of the higher value of the cost of the insulation
In the case of computer results each pipe size will be
listed with the recommended thickness as well as
the average heat savings (as compared to a pre-listed
thickness or bare surface whichever chosen) and the
present value of the heat saved
In order to use any of the available manuals tables
or computer programs the two cost factors (cost of
lost energy and cost of insulation) must be found Thefollowing data is generally provided by the investor
Cost of lost energy
This factor is derived from the combination of the
rate of energy transfer the cost of energy and the
operational hours per year of the building Computing
the rate of energy transfer requires surface and
ambient temperatures thermal conductivity of the
chosen insulation the maximumminimum thickness of
insulation to be considered surface emissivity and last
but not least consideration of surface orientation (i evertical horizontal) and wind (air) velocity
Cost of insulation
This factor is derived from computing a bdquounit installed
price of insulationldquo with the total cost annualized overthe projectacutes life The unit installed price is a combination
of the cost of materials cost of labor and worker
productivity This is a sensitive variable in the economic
thickness calculation Only the roughest of regional
averages are available As a result care must be taken not
to perceive these estimates as fixed budget prices used
for installing insulation Material prices are related to the
volume and cost of the insulation jacketing securement
finishing and structural support material used Also
included in this figure are storage and handling costs to
the contractor Labor costs vary regionally and include
wages fringe benefits per diem and travel expensesas well as overhead and profit Labor production varies
with pipe size complexity number of layers necessary
accessibility of piping and surfaces type of materials
used and general working conditions Other costs
involve the job size and increase with the magnitude of
the job They include the preparation scaffolding clean-
up and tear-down costs supervision costs and general
overhead
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ISOCALreg
For economic thickness calculation program IsoCal
can be used The program also handles the followingcalculations
heat loss calculation
temperature change in pipes or ducts
temperature change in a tank
internal or external condensation
frost protection of water pipes
sound attenuation in ducts
IsoCalreg is a computer program for calculations of
thermal insulation for building equipment and
industrial installations The program mainly calculates
according to EN ISO 12 241 IsoCalreg has been developedprimarily for Saint-Gobain Isoverrsquos range of insulation
products it is however possible to perform more
generic calculations For more information about the
English version 10 please contact your local Isover
representative
MAXIMUM SERVICE TEMPERATURE
MST is determined in a laboratory by testing under de-
fined conditions which are dependent upon the form
of delivery and which are laid down in EN 14 706 (for
wired or lamella mats slabs and felts) and EN 14 707(for pipe sections and segments) MST is determined
by establishing the temperature and time related de-
crease in thickness in one-sided heating For the test
the sample shall take a load of 500 Pa The sample is
heated with a transient of at least 5 Kmin The hot-
face temperature must be maintained for 72 hours at
the expected maximum service temperature At the
maximum service temperature no test result must dis-
play a deformation under load of more than 5
In data sheets of different producers (not only mineral
wool) you will often find MST and value which is not
measured accordance to EN 14 706 This temperature
is only assumed When using such temperature there
is a danger of insulation degradation mainly insulation
thickness If mineral wool product has MST 700 or 750 degC
in its data sheet you can be sure that the material will
not withstand such temperature without degradation
of assessed properties Such temperatures shall not
be used Producers should leave field of assumed MST
and test their products to be able to use declared
MST according to EN 14 706 It is an outstandingimprovement compared to the past because individual
products on the European market can be compared to
each other according to standards valid in the EU
Slabs wired and lamella mats Orstech are certificated
according to valid European standards they are
regularly tested in testing laboratory FIW Muumlnchen
according to VDI 2055 and AGI Q 132 Maximum service
temperatures for various products can be found at the
end of the catalogue in the chapter Isover Products on
page 21)
EVAPORATION OF BINDERS
Binders and greasing agents in mineral wool products
dissolve and evaporate in areas with temperatures
higher than 150 degC Binder evaporation does not have any
influence on thermal properties only the compactness
of a material is decreased If proper underconstruction
is made there is almost no danger of insulation slide
down But if too small insulation thickness or improper
type of insulation is used (mostly insulation with too
low density for too high temperatures) danger of binder
evaporation in the whole thickness is possible with
consequent insulation slide down In this case no well
made underconstruction will help Insulation will not
work any more In the outer colder areas no dissolution
and evaporation take place
Density influence on thermal conductivity
Temperature influence on thermal conductivity for slabsORSTECH
8-9
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FIRE PERFORMANCE
FIRE ndash a chemical reaction involving rapid oxidation or
burning of a fuel occurs only when three elements are
present in the proper conditions and proportions
FUEL ndash Fuel can be any combustible material - solid
liquid or gas Most solids and liquids become a vapour
or gas before they burn
OXYGEN ndash The air we breathe is about 21 oxygen Fire
only needs an atmosphere with at least 16 oxygen
HEAT ndash Heat is the energy necessary to increase the
temperature of the fuel to a point where sufficient
vapours are given off for ignition to occur
Fire development depends mostly on room geometry
and ventilation the fuel type the amount and surface
area of the fuel Fire is often discussed in terms of the
temperature development and can be divided into
different stages incipience (ignition) growth flashover
fully developed fire and decay
How materials behave in the early stages of a fire from
ignition to flashover (the spontaneous ignition of hot
smoke and gasses) needs to be assessed at the design
stage for buildings and also for plants and equipment
Euroclasses a new European harmonised classification
system for materialsrsquo reaction to fire in most Europeancountries replaced the old national standards The
Euroclass fire classification covers not only materials
used in building structures but it is being extended also
to technical insulations to cover building equipment
and industrial installations This will help to compare
the reaction to fire of different thermal insulation
materials
The classification levels are A1A2 (completely non-
combustible) B C D E and F A1A2 corresponds to
the safest situation E would be the most dangerous
situation and F would mean not classified
ISOVER mineral wool insulations are totally non-
combustible and completely fire safe achieving
Euroclass A1 fire rating (A2 for products with facing)when classified in accordance with EN 13501-1 One
of the most important issues studied under reaction to
fire performance is the potential for flashover to occur
which can lead to a fire spreading uncontrollably Isover
stone wool is not susceptible to flashover
This is a guide to common building materials and their
likely Euroclassification
Check with individual product manufactures for spedific
product specifications
REACTION TO FIRE
Smoke and flaming droplet risk(1) In the EU classification system for reaction to fire
a construction product will be classified as Euroclass A1
A2 B C D E or F depending on its tendency to burn
(2) The product testing will provide data represented
by the signs s1 s2 or s3 which indicate the tendency
to release smoke Smoke causes over 60 of deaths in
fire across the EU The measurement of smoke release
has been put into these 3 broad bands that can be
translated as ldquolittle or no smokerdquo s1 - rdquoquite a lot of
smokerdquo s2 - rdquosubstantial smoke releaserdquo s3
(3) Some construction products like these made of
polystyrene can melt and ignite to form Flaming
Droplets Wooden products on the other hand will tend
to char before the char falls away as Flaming Particles
to expose more material
These rdquoflaming dropletsparticlesrdquo will tend to
initiate new fires away from the original point of
ignition and must be considered when the products
are used horizontally in ceiling or roof applications
The classification system ranks the level of release of
flaming dropletsparticles as d0 (none) d1 (some) and
d2 (quite a lot)
Commno materials and likely Euroclass
Euroclass Flashover potential Example materials
A1 amp A2 No Glass and stone mineral wool concrete brick and plasterboard
B No Typically timber products
C Yes 10 minutes Phenolic foam (foil faced) synthetic rubber
D Yes 2-10 minutes Expanded polystyrene type A extruded polystyrene polyisocyanurate foam (foil faced)
E Yes lt 2 minutes Pylyurethane foam (laminate faced) polyisocyanurate foam (sprayed)
F Yes Early failure or no data Expanded polystyrene type N untested or fails Euroclass E
Reaction to fire
H E A T
F U E L
OXYGEN
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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HEAT FLOW TRANSMISSION
Heat transfer is carried out by three heat transmission
modes conduction convection and radiation
Conduction
Heat transfers from warmer surface to colder through
solid material or gas (by fibres in mineral wool
insulations) The more insulant the material the less
the conduction
Convection
Transfer of heat caused by air movements (because of
temperature and density gradient) Hot air moves up
and heat dissipates The quieter the air the less the
convection Convection can be natural (when calculating
insulation inside the building) or forced (for calculation
outside where wind blows)
Radiation
Each material absorbs or emits thermal radiations
depending on its temperature and its emissivity Unlike
conduction or convection heat can be transferred by
radiation also in a vacuum When radiation is absorbed
or reflected there is less thermal transfer Measure of
radiating capacity of a material is emissivity ε Absolute
black body has the highest emissivity (ε = 1) Rough
and dark surfaces approaches such value (for example
mineral wool insulation without jacketing ε = 094)
contrary to bright and smooth surfaces that have very
low emissivity (for example polished aluminium foil ε
= 005) For design it is necessary to take into account
that covering of the bright surface with dust will
increase emissivity significantly
These three transport mechanisms are applied in
two very important quantities ndash surface heat transfer
coefficient α and thermal transmittance U
Thermal insulations impede conduction convection and
radiative effects
by creating a thermal barrier against conductionby suppressing air movements
by limiting radiative effects
Surface heat transfer coefficient
Two heat transmissions (convection and radiation)
influence the heat transfer coefficient α [W(m2middotK)] The
higher the heat transfer coefficient the higher the heat
flow rate from a warm surface
Thermal transmittance
Thermal transmittance (also called Overall heat transfer
coefficient) U (for flat surfaces [W(m2middotK)] for pipes [W
(mmiddotK)]) is inverted value of thermal resistance and it
takes into account the influence of all heat transmission
modes (conduction convection and radiation)
For multi-layer wall
For multi-layer hollow cylinder
where
d hellip thickness of the insulation layer [m]
λ hellip design thermal conductivity of the
insulation product [W(mmiddotK)]
αi hellip internal heat transfer coefficient (at the
medium side)
αe hellip external heat transfer coefficient (at the
ambient side)
R hellip thermal resistance of the multi-layer wall[m2middotKW]
Rsi hellip internal surface resistence [m2middotKW]
Rse
hellip external surface resistence [m2middotKW]
Internal surface resistence of the inner side of the pipe
or wall is very low and therefore it is often neglected in
practical engineering calculations Only in air ducts it is
necessary to calculate it
Details for calculations can be found in the standard
EN ISO 12 241
Materialsrsquo emissivity
Insulation jacketing ε [-]
Aluminium foil bright 005
Aluminium slightly oxidized 013
Stainless steel 015
Aluzinc sheet 018
Galvanized sheet 026
Iron oxidised 030Aluminium stucco-design 040
Brass browned 042
Paint white 085
PVC paint coated sheet metal 090
Paint black 092
Plain mineral wool 094
Temperature gradient in a material
(wall pipe insulation)
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INSULATION SYSTEM DESIGN
GENERAL
An insulation system is the combination of insulations
finishes and application methods which are used toachieve specific design objectives Among these are
Energy savings
Reduced operating costs
Condensation control
Chemical compatibility with the metals being
insulated the atmosphere to which the system
will be exposed and the various components of the
insulation system itself
Protection of mechanical and insulation systems
from mechanical abuse and atmospheric damage
Personnel protection
Fire protection
Sound control
Future requirements for access to piping fittings etc
Accommodation to limited clearances or work space
While there are several choices of insulation materials
which meet basic thermal and cost-effective
requirements of an installation choices become more
limited with each additional design objective that
comes into play
INSULATION THICKNESS CALCULATION
When calculating the thickness of the insulation it isessential to put in appropriate boundary conditions lt
should be noted that the steady-state calculations are
dependent on boundary conditions Often a solution
at one set of boundary conditions is not sufficient to
characterize a thermal system which will operate in a
changing thermal environment (process equipment
operating year-round outdoors for example) In such
cases local weather data based on yearly averages or
yearly extremes of the weather variables should be
used for the calculations
The heat flow through a surface at any point is a function
of several variables which are not directly related
to insulation quality Among others these variables
include ambient temperature movement of the air
roughness and emissivity of the heat flow surface and
the radiation exchange with the surroundings (often
including a great variety of interest) For the calculation
of dew formation variability of the local humidity is animportant factor
Insulation desigh criterion
Apart from a choice of suitable insulation material
for given application it is essential to design proper
insulation thickness It can be determined from two
points of view
Heat loss minimalisation it means reaching the highest
possible economic savings (ideally to calcutate economic
insulation by so- called optimalisation)
Maximum surface temperature (personal protection
against burn) It is usually prescribed by nationallegislation Usual maximum surface temperature is
50 degC if the surrounding air temperature is 25 degC If the
air temperature is different temperature difference
between surface and surrounding air should be up to
25 degC Outdoor piping shall be controlled for maximum
surface temperature every time for summer period
(in the Central Europe calculation air temperature is
30 degC) In boiler rooms surrounding air temperature is
minimally 35 degC
Parameters influencing insulation thick-
ness designHeat flow from the insulation surface is a function of
several parameters which do not relate directly to the
quality of the insulation Here are several parameters
that influence design
thermal conductivity of the insulation material
medium temperature
ambient temperature
external heat transfer coefficient
ECONOMIC THICKNESS
The most substantial return on an investment ininsulation is in energy savings over a period of time
Thermal insulation is one of the most if not the most
significant technology used to conserve energy thereby
reducing pollution Rising energy costs guarantee an
increasing return on any investment made in insulation
In fact it costs less to insulate than not to In the case
of steam process and heat the difference in capital
investment necessary to provide equipment for the
extra steam capacity needed on underinsulated systems
and that investment necessary to insulate plus the
cost of insulation still represents a significant capital
investment savings That insulation saves money is not
the issue here The issue is how much
6-7
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Economic thickness calculations are based on the law
of diminishing returns Because no insulation material
can completely stop the flow of heat each increment ofinsulation added to the thickness saves only a percentage
of the heat which has escaped through the underlying
insulation Therefore each increment of insulation
saves less than the one before it and must be evaluated
against the cost of installation to determine if it is a
ldquogood investmentrdquo It is possible to determine how much
insulation applied to a given system will repay its initial
costs in a specified time This point is reached when the
cost of the last incremental of insulation added is offset
by the savings generated by that increment
Refer to the stetch on the left The vertical scale is the
annual cost The horizontal scale is insulation thickness
As the insulation thickness increases from 0 the cost of
heat loss through the insulation decreases Note that this
cost (line B) tends to approach a horizontal line at high
thicknesses As the insulation thickness increases the
cost of the insulation also increases (line A) The total
annual cost at any insulation thickness is the sum of the
cost of the insulation and the cost of the lost heat (line
C) Line C goes through a minimum value of total annual
cost at the Economic thickness
With thicknesses less than the economic thickness the
total annual cost is higher because of the higher valueof the cost of lost heat With thicknesses higher than
the economic thickness the total annual cost is higher
because of the higher value of the cost of the insulation
In the case of computer results each pipe size will be
listed with the recommended thickness as well as
the average heat savings (as compared to a pre-listed
thickness or bare surface whichever chosen) and the
present value of the heat saved
In order to use any of the available manuals tables
or computer programs the two cost factors (cost of
lost energy and cost of insulation) must be found Thefollowing data is generally provided by the investor
Cost of lost energy
This factor is derived from the combination of the
rate of energy transfer the cost of energy and the
operational hours per year of the building Computing
the rate of energy transfer requires surface and
ambient temperatures thermal conductivity of the
chosen insulation the maximumminimum thickness of
insulation to be considered surface emissivity and last
but not least consideration of surface orientation (i evertical horizontal) and wind (air) velocity
Cost of insulation
This factor is derived from computing a bdquounit installed
price of insulationldquo with the total cost annualized overthe projectacutes life The unit installed price is a combination
of the cost of materials cost of labor and worker
productivity This is a sensitive variable in the economic
thickness calculation Only the roughest of regional
averages are available As a result care must be taken not
to perceive these estimates as fixed budget prices used
for installing insulation Material prices are related to the
volume and cost of the insulation jacketing securement
finishing and structural support material used Also
included in this figure are storage and handling costs to
the contractor Labor costs vary regionally and include
wages fringe benefits per diem and travel expensesas well as overhead and profit Labor production varies
with pipe size complexity number of layers necessary
accessibility of piping and surfaces type of materials
used and general working conditions Other costs
involve the job size and increase with the magnitude of
the job They include the preparation scaffolding clean-
up and tear-down costs supervision costs and general
overhead
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ISOCALreg
For economic thickness calculation program IsoCal
can be used The program also handles the followingcalculations
heat loss calculation
temperature change in pipes or ducts
temperature change in a tank
internal or external condensation
frost protection of water pipes
sound attenuation in ducts
IsoCalreg is a computer program for calculations of
thermal insulation for building equipment and
industrial installations The program mainly calculates
according to EN ISO 12 241 IsoCalreg has been developedprimarily for Saint-Gobain Isoverrsquos range of insulation
products it is however possible to perform more
generic calculations For more information about the
English version 10 please contact your local Isover
representative
MAXIMUM SERVICE TEMPERATURE
MST is determined in a laboratory by testing under de-
fined conditions which are dependent upon the form
of delivery and which are laid down in EN 14 706 (for
wired or lamella mats slabs and felts) and EN 14 707(for pipe sections and segments) MST is determined
by establishing the temperature and time related de-
crease in thickness in one-sided heating For the test
the sample shall take a load of 500 Pa The sample is
heated with a transient of at least 5 Kmin The hot-
face temperature must be maintained for 72 hours at
the expected maximum service temperature At the
maximum service temperature no test result must dis-
play a deformation under load of more than 5
In data sheets of different producers (not only mineral
wool) you will often find MST and value which is not
measured accordance to EN 14 706 This temperature
is only assumed When using such temperature there
is a danger of insulation degradation mainly insulation
thickness If mineral wool product has MST 700 or 750 degC
in its data sheet you can be sure that the material will
not withstand such temperature without degradation
of assessed properties Such temperatures shall not
be used Producers should leave field of assumed MST
and test their products to be able to use declared
MST according to EN 14 706 It is an outstandingimprovement compared to the past because individual
products on the European market can be compared to
each other according to standards valid in the EU
Slabs wired and lamella mats Orstech are certificated
according to valid European standards they are
regularly tested in testing laboratory FIW Muumlnchen
according to VDI 2055 and AGI Q 132 Maximum service
temperatures for various products can be found at the
end of the catalogue in the chapter Isover Products on
page 21)
EVAPORATION OF BINDERS
Binders and greasing agents in mineral wool products
dissolve and evaporate in areas with temperatures
higher than 150 degC Binder evaporation does not have any
influence on thermal properties only the compactness
of a material is decreased If proper underconstruction
is made there is almost no danger of insulation slide
down But if too small insulation thickness or improper
type of insulation is used (mostly insulation with too
low density for too high temperatures) danger of binder
evaporation in the whole thickness is possible with
consequent insulation slide down In this case no well
made underconstruction will help Insulation will not
work any more In the outer colder areas no dissolution
and evaporation take place
Density influence on thermal conductivity
Temperature influence on thermal conductivity for slabsORSTECH
8-9
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FIRE PERFORMANCE
FIRE ndash a chemical reaction involving rapid oxidation or
burning of a fuel occurs only when three elements are
present in the proper conditions and proportions
FUEL ndash Fuel can be any combustible material - solid
liquid or gas Most solids and liquids become a vapour
or gas before they burn
OXYGEN ndash The air we breathe is about 21 oxygen Fire
only needs an atmosphere with at least 16 oxygen
HEAT ndash Heat is the energy necessary to increase the
temperature of the fuel to a point where sufficient
vapours are given off for ignition to occur
Fire development depends mostly on room geometry
and ventilation the fuel type the amount and surface
area of the fuel Fire is often discussed in terms of the
temperature development and can be divided into
different stages incipience (ignition) growth flashover
fully developed fire and decay
How materials behave in the early stages of a fire from
ignition to flashover (the spontaneous ignition of hot
smoke and gasses) needs to be assessed at the design
stage for buildings and also for plants and equipment
Euroclasses a new European harmonised classification
system for materialsrsquo reaction to fire in most Europeancountries replaced the old national standards The
Euroclass fire classification covers not only materials
used in building structures but it is being extended also
to technical insulations to cover building equipment
and industrial installations This will help to compare
the reaction to fire of different thermal insulation
materials
The classification levels are A1A2 (completely non-
combustible) B C D E and F A1A2 corresponds to
the safest situation E would be the most dangerous
situation and F would mean not classified
ISOVER mineral wool insulations are totally non-
combustible and completely fire safe achieving
Euroclass A1 fire rating (A2 for products with facing)when classified in accordance with EN 13501-1 One
of the most important issues studied under reaction to
fire performance is the potential for flashover to occur
which can lead to a fire spreading uncontrollably Isover
stone wool is not susceptible to flashover
This is a guide to common building materials and their
likely Euroclassification
Check with individual product manufactures for spedific
product specifications
REACTION TO FIRE
Smoke and flaming droplet risk(1) In the EU classification system for reaction to fire
a construction product will be classified as Euroclass A1
A2 B C D E or F depending on its tendency to burn
(2) The product testing will provide data represented
by the signs s1 s2 or s3 which indicate the tendency
to release smoke Smoke causes over 60 of deaths in
fire across the EU The measurement of smoke release
has been put into these 3 broad bands that can be
translated as ldquolittle or no smokerdquo s1 - rdquoquite a lot of
smokerdquo s2 - rdquosubstantial smoke releaserdquo s3
(3) Some construction products like these made of
polystyrene can melt and ignite to form Flaming
Droplets Wooden products on the other hand will tend
to char before the char falls away as Flaming Particles
to expose more material
These rdquoflaming dropletsparticlesrdquo will tend to
initiate new fires away from the original point of
ignition and must be considered when the products
are used horizontally in ceiling or roof applications
The classification system ranks the level of release of
flaming dropletsparticles as d0 (none) d1 (some) and
d2 (quite a lot)
Commno materials and likely Euroclass
Euroclass Flashover potential Example materials
A1 amp A2 No Glass and stone mineral wool concrete brick and plasterboard
B No Typically timber products
C Yes 10 minutes Phenolic foam (foil faced) synthetic rubber
D Yes 2-10 minutes Expanded polystyrene type A extruded polystyrene polyisocyanurate foam (foil faced)
E Yes lt 2 minutes Pylyurethane foam (laminate faced) polyisocyanurate foam (sprayed)
F Yes Early failure or no data Expanded polystyrene type N untested or fails Euroclass E
Reaction to fire
H E A T
F U E L
OXYGEN
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
8122019 Catalogue of Technical Insulations 2013-10-598 En
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2728
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2828
A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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INSULATION SYSTEM DESIGN
GENERAL
An insulation system is the combination of insulations
finishes and application methods which are used toachieve specific design objectives Among these are
Energy savings
Reduced operating costs
Condensation control
Chemical compatibility with the metals being
insulated the atmosphere to which the system
will be exposed and the various components of the
insulation system itself
Protection of mechanical and insulation systems
from mechanical abuse and atmospheric damage
Personnel protection
Fire protection
Sound control
Future requirements for access to piping fittings etc
Accommodation to limited clearances or work space
While there are several choices of insulation materials
which meet basic thermal and cost-effective
requirements of an installation choices become more
limited with each additional design objective that
comes into play
INSULATION THICKNESS CALCULATION
When calculating the thickness of the insulation it isessential to put in appropriate boundary conditions lt
should be noted that the steady-state calculations are
dependent on boundary conditions Often a solution
at one set of boundary conditions is not sufficient to
characterize a thermal system which will operate in a
changing thermal environment (process equipment
operating year-round outdoors for example) In such
cases local weather data based on yearly averages or
yearly extremes of the weather variables should be
used for the calculations
The heat flow through a surface at any point is a function
of several variables which are not directly related
to insulation quality Among others these variables
include ambient temperature movement of the air
roughness and emissivity of the heat flow surface and
the radiation exchange with the surroundings (often
including a great variety of interest) For the calculation
of dew formation variability of the local humidity is animportant factor
Insulation desigh criterion
Apart from a choice of suitable insulation material
for given application it is essential to design proper
insulation thickness It can be determined from two
points of view
Heat loss minimalisation it means reaching the highest
possible economic savings (ideally to calcutate economic
insulation by so- called optimalisation)
Maximum surface temperature (personal protection
against burn) It is usually prescribed by nationallegislation Usual maximum surface temperature is
50 degC if the surrounding air temperature is 25 degC If the
air temperature is different temperature difference
between surface and surrounding air should be up to
25 degC Outdoor piping shall be controlled for maximum
surface temperature every time for summer period
(in the Central Europe calculation air temperature is
30 degC) In boiler rooms surrounding air temperature is
minimally 35 degC
Parameters influencing insulation thick-
ness designHeat flow from the insulation surface is a function of
several parameters which do not relate directly to the
quality of the insulation Here are several parameters
that influence design
thermal conductivity of the insulation material
medium temperature
ambient temperature
external heat transfer coefficient
ECONOMIC THICKNESS
The most substantial return on an investment ininsulation is in energy savings over a period of time
Thermal insulation is one of the most if not the most
significant technology used to conserve energy thereby
reducing pollution Rising energy costs guarantee an
increasing return on any investment made in insulation
In fact it costs less to insulate than not to In the case
of steam process and heat the difference in capital
investment necessary to provide equipment for the
extra steam capacity needed on underinsulated systems
and that investment necessary to insulate plus the
cost of insulation still represents a significant capital
investment savings That insulation saves money is not
the issue here The issue is how much
6-7
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Economic thickness calculations are based on the law
of diminishing returns Because no insulation material
can completely stop the flow of heat each increment ofinsulation added to the thickness saves only a percentage
of the heat which has escaped through the underlying
insulation Therefore each increment of insulation
saves less than the one before it and must be evaluated
against the cost of installation to determine if it is a
ldquogood investmentrdquo It is possible to determine how much
insulation applied to a given system will repay its initial
costs in a specified time This point is reached when the
cost of the last incremental of insulation added is offset
by the savings generated by that increment
Refer to the stetch on the left The vertical scale is the
annual cost The horizontal scale is insulation thickness
As the insulation thickness increases from 0 the cost of
heat loss through the insulation decreases Note that this
cost (line B) tends to approach a horizontal line at high
thicknesses As the insulation thickness increases the
cost of the insulation also increases (line A) The total
annual cost at any insulation thickness is the sum of the
cost of the insulation and the cost of the lost heat (line
C) Line C goes through a minimum value of total annual
cost at the Economic thickness
With thicknesses less than the economic thickness the
total annual cost is higher because of the higher valueof the cost of lost heat With thicknesses higher than
the economic thickness the total annual cost is higher
because of the higher value of the cost of the insulation
In the case of computer results each pipe size will be
listed with the recommended thickness as well as
the average heat savings (as compared to a pre-listed
thickness or bare surface whichever chosen) and the
present value of the heat saved
In order to use any of the available manuals tables
or computer programs the two cost factors (cost of
lost energy and cost of insulation) must be found Thefollowing data is generally provided by the investor
Cost of lost energy
This factor is derived from the combination of the
rate of energy transfer the cost of energy and the
operational hours per year of the building Computing
the rate of energy transfer requires surface and
ambient temperatures thermal conductivity of the
chosen insulation the maximumminimum thickness of
insulation to be considered surface emissivity and last
but not least consideration of surface orientation (i evertical horizontal) and wind (air) velocity
Cost of insulation
This factor is derived from computing a bdquounit installed
price of insulationldquo with the total cost annualized overthe projectacutes life The unit installed price is a combination
of the cost of materials cost of labor and worker
productivity This is a sensitive variable in the economic
thickness calculation Only the roughest of regional
averages are available As a result care must be taken not
to perceive these estimates as fixed budget prices used
for installing insulation Material prices are related to the
volume and cost of the insulation jacketing securement
finishing and structural support material used Also
included in this figure are storage and handling costs to
the contractor Labor costs vary regionally and include
wages fringe benefits per diem and travel expensesas well as overhead and profit Labor production varies
with pipe size complexity number of layers necessary
accessibility of piping and surfaces type of materials
used and general working conditions Other costs
involve the job size and increase with the magnitude of
the job They include the preparation scaffolding clean-
up and tear-down costs supervision costs and general
overhead
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ISOCALreg
For economic thickness calculation program IsoCal
can be used The program also handles the followingcalculations
heat loss calculation
temperature change in pipes or ducts
temperature change in a tank
internal or external condensation
frost protection of water pipes
sound attenuation in ducts
IsoCalreg is a computer program for calculations of
thermal insulation for building equipment and
industrial installations The program mainly calculates
according to EN ISO 12 241 IsoCalreg has been developedprimarily for Saint-Gobain Isoverrsquos range of insulation
products it is however possible to perform more
generic calculations For more information about the
English version 10 please contact your local Isover
representative
MAXIMUM SERVICE TEMPERATURE
MST is determined in a laboratory by testing under de-
fined conditions which are dependent upon the form
of delivery and which are laid down in EN 14 706 (for
wired or lamella mats slabs and felts) and EN 14 707(for pipe sections and segments) MST is determined
by establishing the temperature and time related de-
crease in thickness in one-sided heating For the test
the sample shall take a load of 500 Pa The sample is
heated with a transient of at least 5 Kmin The hot-
face temperature must be maintained for 72 hours at
the expected maximum service temperature At the
maximum service temperature no test result must dis-
play a deformation under load of more than 5
In data sheets of different producers (not only mineral
wool) you will often find MST and value which is not
measured accordance to EN 14 706 This temperature
is only assumed When using such temperature there
is a danger of insulation degradation mainly insulation
thickness If mineral wool product has MST 700 or 750 degC
in its data sheet you can be sure that the material will
not withstand such temperature without degradation
of assessed properties Such temperatures shall not
be used Producers should leave field of assumed MST
and test their products to be able to use declared
MST according to EN 14 706 It is an outstandingimprovement compared to the past because individual
products on the European market can be compared to
each other according to standards valid in the EU
Slabs wired and lamella mats Orstech are certificated
according to valid European standards they are
regularly tested in testing laboratory FIW Muumlnchen
according to VDI 2055 and AGI Q 132 Maximum service
temperatures for various products can be found at the
end of the catalogue in the chapter Isover Products on
page 21)
EVAPORATION OF BINDERS
Binders and greasing agents in mineral wool products
dissolve and evaporate in areas with temperatures
higher than 150 degC Binder evaporation does not have any
influence on thermal properties only the compactness
of a material is decreased If proper underconstruction
is made there is almost no danger of insulation slide
down But if too small insulation thickness or improper
type of insulation is used (mostly insulation with too
low density for too high temperatures) danger of binder
evaporation in the whole thickness is possible with
consequent insulation slide down In this case no well
made underconstruction will help Insulation will not
work any more In the outer colder areas no dissolution
and evaporation take place
Density influence on thermal conductivity
Temperature influence on thermal conductivity for slabsORSTECH
8-9
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FIRE PERFORMANCE
FIRE ndash a chemical reaction involving rapid oxidation or
burning of a fuel occurs only when three elements are
present in the proper conditions and proportions
FUEL ndash Fuel can be any combustible material - solid
liquid or gas Most solids and liquids become a vapour
or gas before they burn
OXYGEN ndash The air we breathe is about 21 oxygen Fire
only needs an atmosphere with at least 16 oxygen
HEAT ndash Heat is the energy necessary to increase the
temperature of the fuel to a point where sufficient
vapours are given off for ignition to occur
Fire development depends mostly on room geometry
and ventilation the fuel type the amount and surface
area of the fuel Fire is often discussed in terms of the
temperature development and can be divided into
different stages incipience (ignition) growth flashover
fully developed fire and decay
How materials behave in the early stages of a fire from
ignition to flashover (the spontaneous ignition of hot
smoke and gasses) needs to be assessed at the design
stage for buildings and also for plants and equipment
Euroclasses a new European harmonised classification
system for materialsrsquo reaction to fire in most Europeancountries replaced the old national standards The
Euroclass fire classification covers not only materials
used in building structures but it is being extended also
to technical insulations to cover building equipment
and industrial installations This will help to compare
the reaction to fire of different thermal insulation
materials
The classification levels are A1A2 (completely non-
combustible) B C D E and F A1A2 corresponds to
the safest situation E would be the most dangerous
situation and F would mean not classified
ISOVER mineral wool insulations are totally non-
combustible and completely fire safe achieving
Euroclass A1 fire rating (A2 for products with facing)when classified in accordance with EN 13501-1 One
of the most important issues studied under reaction to
fire performance is the potential for flashover to occur
which can lead to a fire spreading uncontrollably Isover
stone wool is not susceptible to flashover
This is a guide to common building materials and their
likely Euroclassification
Check with individual product manufactures for spedific
product specifications
REACTION TO FIRE
Smoke and flaming droplet risk(1) In the EU classification system for reaction to fire
a construction product will be classified as Euroclass A1
A2 B C D E or F depending on its tendency to burn
(2) The product testing will provide data represented
by the signs s1 s2 or s3 which indicate the tendency
to release smoke Smoke causes over 60 of deaths in
fire across the EU The measurement of smoke release
has been put into these 3 broad bands that can be
translated as ldquolittle or no smokerdquo s1 - rdquoquite a lot of
smokerdquo s2 - rdquosubstantial smoke releaserdquo s3
(3) Some construction products like these made of
polystyrene can melt and ignite to form Flaming
Droplets Wooden products on the other hand will tend
to char before the char falls away as Flaming Particles
to expose more material
These rdquoflaming dropletsparticlesrdquo will tend to
initiate new fires away from the original point of
ignition and must be considered when the products
are used horizontally in ceiling or roof applications
The classification system ranks the level of release of
flaming dropletsparticles as d0 (none) d1 (some) and
d2 (quite a lot)
Commno materials and likely Euroclass
Euroclass Flashover potential Example materials
A1 amp A2 No Glass and stone mineral wool concrete brick and plasterboard
B No Typically timber products
C Yes 10 minutes Phenolic foam (foil faced) synthetic rubber
D Yes 2-10 minutes Expanded polystyrene type A extruded polystyrene polyisocyanurate foam (foil faced)
E Yes lt 2 minutes Pylyurethane foam (laminate faced) polyisocyanurate foam (sprayed)
F Yes Early failure or no data Expanded polystyrene type N untested or fails Euroclass E
Reaction to fire
H E A T
F U E L
OXYGEN
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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Economic thickness calculations are based on the law
of diminishing returns Because no insulation material
can completely stop the flow of heat each increment ofinsulation added to the thickness saves only a percentage
of the heat which has escaped through the underlying
insulation Therefore each increment of insulation
saves less than the one before it and must be evaluated
against the cost of installation to determine if it is a
ldquogood investmentrdquo It is possible to determine how much
insulation applied to a given system will repay its initial
costs in a specified time This point is reached when the
cost of the last incremental of insulation added is offset
by the savings generated by that increment
Refer to the stetch on the left The vertical scale is the
annual cost The horizontal scale is insulation thickness
As the insulation thickness increases from 0 the cost of
heat loss through the insulation decreases Note that this
cost (line B) tends to approach a horizontal line at high
thicknesses As the insulation thickness increases the
cost of the insulation also increases (line A) The total
annual cost at any insulation thickness is the sum of the
cost of the insulation and the cost of the lost heat (line
C) Line C goes through a minimum value of total annual
cost at the Economic thickness
With thicknesses less than the economic thickness the
total annual cost is higher because of the higher valueof the cost of lost heat With thicknesses higher than
the economic thickness the total annual cost is higher
because of the higher value of the cost of the insulation
In the case of computer results each pipe size will be
listed with the recommended thickness as well as
the average heat savings (as compared to a pre-listed
thickness or bare surface whichever chosen) and the
present value of the heat saved
In order to use any of the available manuals tables
or computer programs the two cost factors (cost of
lost energy and cost of insulation) must be found Thefollowing data is generally provided by the investor
Cost of lost energy
This factor is derived from the combination of the
rate of energy transfer the cost of energy and the
operational hours per year of the building Computing
the rate of energy transfer requires surface and
ambient temperatures thermal conductivity of the
chosen insulation the maximumminimum thickness of
insulation to be considered surface emissivity and last
but not least consideration of surface orientation (i evertical horizontal) and wind (air) velocity
Cost of insulation
This factor is derived from computing a bdquounit installed
price of insulationldquo with the total cost annualized overthe projectacutes life The unit installed price is a combination
of the cost of materials cost of labor and worker
productivity This is a sensitive variable in the economic
thickness calculation Only the roughest of regional
averages are available As a result care must be taken not
to perceive these estimates as fixed budget prices used
for installing insulation Material prices are related to the
volume and cost of the insulation jacketing securement
finishing and structural support material used Also
included in this figure are storage and handling costs to
the contractor Labor costs vary regionally and include
wages fringe benefits per diem and travel expensesas well as overhead and profit Labor production varies
with pipe size complexity number of layers necessary
accessibility of piping and surfaces type of materials
used and general working conditions Other costs
involve the job size and increase with the magnitude of
the job They include the preparation scaffolding clean-
up and tear-down costs supervision costs and general
overhead
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ISOCALreg
For economic thickness calculation program IsoCal
can be used The program also handles the followingcalculations
heat loss calculation
temperature change in pipes or ducts
temperature change in a tank
internal or external condensation
frost protection of water pipes
sound attenuation in ducts
IsoCalreg is a computer program for calculations of
thermal insulation for building equipment and
industrial installations The program mainly calculates
according to EN ISO 12 241 IsoCalreg has been developedprimarily for Saint-Gobain Isoverrsquos range of insulation
products it is however possible to perform more
generic calculations For more information about the
English version 10 please contact your local Isover
representative
MAXIMUM SERVICE TEMPERATURE
MST is determined in a laboratory by testing under de-
fined conditions which are dependent upon the form
of delivery and which are laid down in EN 14 706 (for
wired or lamella mats slabs and felts) and EN 14 707(for pipe sections and segments) MST is determined
by establishing the temperature and time related de-
crease in thickness in one-sided heating For the test
the sample shall take a load of 500 Pa The sample is
heated with a transient of at least 5 Kmin The hot-
face temperature must be maintained for 72 hours at
the expected maximum service temperature At the
maximum service temperature no test result must dis-
play a deformation under load of more than 5
In data sheets of different producers (not only mineral
wool) you will often find MST and value which is not
measured accordance to EN 14 706 This temperature
is only assumed When using such temperature there
is a danger of insulation degradation mainly insulation
thickness If mineral wool product has MST 700 or 750 degC
in its data sheet you can be sure that the material will
not withstand such temperature without degradation
of assessed properties Such temperatures shall not
be used Producers should leave field of assumed MST
and test their products to be able to use declared
MST according to EN 14 706 It is an outstandingimprovement compared to the past because individual
products on the European market can be compared to
each other according to standards valid in the EU
Slabs wired and lamella mats Orstech are certificated
according to valid European standards they are
regularly tested in testing laboratory FIW Muumlnchen
according to VDI 2055 and AGI Q 132 Maximum service
temperatures for various products can be found at the
end of the catalogue in the chapter Isover Products on
page 21)
EVAPORATION OF BINDERS
Binders and greasing agents in mineral wool products
dissolve and evaporate in areas with temperatures
higher than 150 degC Binder evaporation does not have any
influence on thermal properties only the compactness
of a material is decreased If proper underconstruction
is made there is almost no danger of insulation slide
down But if too small insulation thickness or improper
type of insulation is used (mostly insulation with too
low density for too high temperatures) danger of binder
evaporation in the whole thickness is possible with
consequent insulation slide down In this case no well
made underconstruction will help Insulation will not
work any more In the outer colder areas no dissolution
and evaporation take place
Density influence on thermal conductivity
Temperature influence on thermal conductivity for slabsORSTECH
8-9
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FIRE PERFORMANCE
FIRE ndash a chemical reaction involving rapid oxidation or
burning of a fuel occurs only when three elements are
present in the proper conditions and proportions
FUEL ndash Fuel can be any combustible material - solid
liquid or gas Most solids and liquids become a vapour
or gas before they burn
OXYGEN ndash The air we breathe is about 21 oxygen Fire
only needs an atmosphere with at least 16 oxygen
HEAT ndash Heat is the energy necessary to increase the
temperature of the fuel to a point where sufficient
vapours are given off for ignition to occur
Fire development depends mostly on room geometry
and ventilation the fuel type the amount and surface
area of the fuel Fire is often discussed in terms of the
temperature development and can be divided into
different stages incipience (ignition) growth flashover
fully developed fire and decay
How materials behave in the early stages of a fire from
ignition to flashover (the spontaneous ignition of hot
smoke and gasses) needs to be assessed at the design
stage for buildings and also for plants and equipment
Euroclasses a new European harmonised classification
system for materialsrsquo reaction to fire in most Europeancountries replaced the old national standards The
Euroclass fire classification covers not only materials
used in building structures but it is being extended also
to technical insulations to cover building equipment
and industrial installations This will help to compare
the reaction to fire of different thermal insulation
materials
The classification levels are A1A2 (completely non-
combustible) B C D E and F A1A2 corresponds to
the safest situation E would be the most dangerous
situation and F would mean not classified
ISOVER mineral wool insulations are totally non-
combustible and completely fire safe achieving
Euroclass A1 fire rating (A2 for products with facing)when classified in accordance with EN 13501-1 One
of the most important issues studied under reaction to
fire performance is the potential for flashover to occur
which can lead to a fire spreading uncontrollably Isover
stone wool is not susceptible to flashover
This is a guide to common building materials and their
likely Euroclassification
Check with individual product manufactures for spedific
product specifications
REACTION TO FIRE
Smoke and flaming droplet risk(1) In the EU classification system for reaction to fire
a construction product will be classified as Euroclass A1
A2 B C D E or F depending on its tendency to burn
(2) The product testing will provide data represented
by the signs s1 s2 or s3 which indicate the tendency
to release smoke Smoke causes over 60 of deaths in
fire across the EU The measurement of smoke release
has been put into these 3 broad bands that can be
translated as ldquolittle or no smokerdquo s1 - rdquoquite a lot of
smokerdquo s2 - rdquosubstantial smoke releaserdquo s3
(3) Some construction products like these made of
polystyrene can melt and ignite to form Flaming
Droplets Wooden products on the other hand will tend
to char before the char falls away as Flaming Particles
to expose more material
These rdquoflaming dropletsparticlesrdquo will tend to
initiate new fires away from the original point of
ignition and must be considered when the products
are used horizontally in ceiling or roof applications
The classification system ranks the level of release of
flaming dropletsparticles as d0 (none) d1 (some) and
d2 (quite a lot)
Commno materials and likely Euroclass
Euroclass Flashover potential Example materials
A1 amp A2 No Glass and stone mineral wool concrete brick and plasterboard
B No Typically timber products
C Yes 10 minutes Phenolic foam (foil faced) synthetic rubber
D Yes 2-10 minutes Expanded polystyrene type A extruded polystyrene polyisocyanurate foam (foil faced)
E Yes lt 2 minutes Pylyurethane foam (laminate faced) polyisocyanurate foam (sprayed)
F Yes Early failure or no data Expanded polystyrene type N untested or fails Euroclass E
Reaction to fire
H E A T
F U E L
OXYGEN
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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ISOCALreg
For economic thickness calculation program IsoCal
can be used The program also handles the followingcalculations
heat loss calculation
temperature change in pipes or ducts
temperature change in a tank
internal or external condensation
frost protection of water pipes
sound attenuation in ducts
IsoCalreg is a computer program for calculations of
thermal insulation for building equipment and
industrial installations The program mainly calculates
according to EN ISO 12 241 IsoCalreg has been developedprimarily for Saint-Gobain Isoverrsquos range of insulation
products it is however possible to perform more
generic calculations For more information about the
English version 10 please contact your local Isover
representative
MAXIMUM SERVICE TEMPERATURE
MST is determined in a laboratory by testing under de-
fined conditions which are dependent upon the form
of delivery and which are laid down in EN 14 706 (for
wired or lamella mats slabs and felts) and EN 14 707(for pipe sections and segments) MST is determined
by establishing the temperature and time related de-
crease in thickness in one-sided heating For the test
the sample shall take a load of 500 Pa The sample is
heated with a transient of at least 5 Kmin The hot-
face temperature must be maintained for 72 hours at
the expected maximum service temperature At the
maximum service temperature no test result must dis-
play a deformation under load of more than 5
In data sheets of different producers (not only mineral
wool) you will often find MST and value which is not
measured accordance to EN 14 706 This temperature
is only assumed When using such temperature there
is a danger of insulation degradation mainly insulation
thickness If mineral wool product has MST 700 or 750 degC
in its data sheet you can be sure that the material will
not withstand such temperature without degradation
of assessed properties Such temperatures shall not
be used Producers should leave field of assumed MST
and test their products to be able to use declared
MST according to EN 14 706 It is an outstandingimprovement compared to the past because individual
products on the European market can be compared to
each other according to standards valid in the EU
Slabs wired and lamella mats Orstech are certificated
according to valid European standards they are
regularly tested in testing laboratory FIW Muumlnchen
according to VDI 2055 and AGI Q 132 Maximum service
temperatures for various products can be found at the
end of the catalogue in the chapter Isover Products on
page 21)
EVAPORATION OF BINDERS
Binders and greasing agents in mineral wool products
dissolve and evaporate in areas with temperatures
higher than 150 degC Binder evaporation does not have any
influence on thermal properties only the compactness
of a material is decreased If proper underconstruction
is made there is almost no danger of insulation slide
down But if too small insulation thickness or improper
type of insulation is used (mostly insulation with too
low density for too high temperatures) danger of binder
evaporation in the whole thickness is possible with
consequent insulation slide down In this case no well
made underconstruction will help Insulation will not
work any more In the outer colder areas no dissolution
and evaporation take place
Density influence on thermal conductivity
Temperature influence on thermal conductivity for slabsORSTECH
8-9
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FIRE PERFORMANCE
FIRE ndash a chemical reaction involving rapid oxidation or
burning of a fuel occurs only when three elements are
present in the proper conditions and proportions
FUEL ndash Fuel can be any combustible material - solid
liquid or gas Most solids and liquids become a vapour
or gas before they burn
OXYGEN ndash The air we breathe is about 21 oxygen Fire
only needs an atmosphere with at least 16 oxygen
HEAT ndash Heat is the energy necessary to increase the
temperature of the fuel to a point where sufficient
vapours are given off for ignition to occur
Fire development depends mostly on room geometry
and ventilation the fuel type the amount and surface
area of the fuel Fire is often discussed in terms of the
temperature development and can be divided into
different stages incipience (ignition) growth flashover
fully developed fire and decay
How materials behave in the early stages of a fire from
ignition to flashover (the spontaneous ignition of hot
smoke and gasses) needs to be assessed at the design
stage for buildings and also for plants and equipment
Euroclasses a new European harmonised classification
system for materialsrsquo reaction to fire in most Europeancountries replaced the old national standards The
Euroclass fire classification covers not only materials
used in building structures but it is being extended also
to technical insulations to cover building equipment
and industrial installations This will help to compare
the reaction to fire of different thermal insulation
materials
The classification levels are A1A2 (completely non-
combustible) B C D E and F A1A2 corresponds to
the safest situation E would be the most dangerous
situation and F would mean not classified
ISOVER mineral wool insulations are totally non-
combustible and completely fire safe achieving
Euroclass A1 fire rating (A2 for products with facing)when classified in accordance with EN 13501-1 One
of the most important issues studied under reaction to
fire performance is the potential for flashover to occur
which can lead to a fire spreading uncontrollably Isover
stone wool is not susceptible to flashover
This is a guide to common building materials and their
likely Euroclassification
Check with individual product manufactures for spedific
product specifications
REACTION TO FIRE
Smoke and flaming droplet risk(1) In the EU classification system for reaction to fire
a construction product will be classified as Euroclass A1
A2 B C D E or F depending on its tendency to burn
(2) The product testing will provide data represented
by the signs s1 s2 or s3 which indicate the tendency
to release smoke Smoke causes over 60 of deaths in
fire across the EU The measurement of smoke release
has been put into these 3 broad bands that can be
translated as ldquolittle or no smokerdquo s1 - rdquoquite a lot of
smokerdquo s2 - rdquosubstantial smoke releaserdquo s3
(3) Some construction products like these made of
polystyrene can melt and ignite to form Flaming
Droplets Wooden products on the other hand will tend
to char before the char falls away as Flaming Particles
to expose more material
These rdquoflaming dropletsparticlesrdquo will tend to
initiate new fires away from the original point of
ignition and must be considered when the products
are used horizontally in ceiling or roof applications
The classification system ranks the level of release of
flaming dropletsparticles as d0 (none) d1 (some) and
d2 (quite a lot)
Commno materials and likely Euroclass
Euroclass Flashover potential Example materials
A1 amp A2 No Glass and stone mineral wool concrete brick and plasterboard
B No Typically timber products
C Yes 10 minutes Phenolic foam (foil faced) synthetic rubber
D Yes 2-10 minutes Expanded polystyrene type A extruded polystyrene polyisocyanurate foam (foil faced)
E Yes lt 2 minutes Pylyurethane foam (laminate faced) polyisocyanurate foam (sprayed)
F Yes Early failure or no data Expanded polystyrene type N untested or fails Euroclass E
Reaction to fire
H E A T
F U E L
OXYGEN
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
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8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2828
A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 1028
FIRE PERFORMANCE
FIRE ndash a chemical reaction involving rapid oxidation or
burning of a fuel occurs only when three elements are
present in the proper conditions and proportions
FUEL ndash Fuel can be any combustible material - solid
liquid or gas Most solids and liquids become a vapour
or gas before they burn
OXYGEN ndash The air we breathe is about 21 oxygen Fire
only needs an atmosphere with at least 16 oxygen
HEAT ndash Heat is the energy necessary to increase the
temperature of the fuel to a point where sufficient
vapours are given off for ignition to occur
Fire development depends mostly on room geometry
and ventilation the fuel type the amount and surface
area of the fuel Fire is often discussed in terms of the
temperature development and can be divided into
different stages incipience (ignition) growth flashover
fully developed fire and decay
How materials behave in the early stages of a fire from
ignition to flashover (the spontaneous ignition of hot
smoke and gasses) needs to be assessed at the design
stage for buildings and also for plants and equipment
Euroclasses a new European harmonised classification
system for materialsrsquo reaction to fire in most Europeancountries replaced the old national standards The
Euroclass fire classification covers not only materials
used in building structures but it is being extended also
to technical insulations to cover building equipment
and industrial installations This will help to compare
the reaction to fire of different thermal insulation
materials
The classification levels are A1A2 (completely non-
combustible) B C D E and F A1A2 corresponds to
the safest situation E would be the most dangerous
situation and F would mean not classified
ISOVER mineral wool insulations are totally non-
combustible and completely fire safe achieving
Euroclass A1 fire rating (A2 for products with facing)when classified in accordance with EN 13501-1 One
of the most important issues studied under reaction to
fire performance is the potential for flashover to occur
which can lead to a fire spreading uncontrollably Isover
stone wool is not susceptible to flashover
This is a guide to common building materials and their
likely Euroclassification
Check with individual product manufactures for spedific
product specifications
REACTION TO FIRE
Smoke and flaming droplet risk(1) In the EU classification system for reaction to fire
a construction product will be classified as Euroclass A1
A2 B C D E or F depending on its tendency to burn
(2) The product testing will provide data represented
by the signs s1 s2 or s3 which indicate the tendency
to release smoke Smoke causes over 60 of deaths in
fire across the EU The measurement of smoke release
has been put into these 3 broad bands that can be
translated as ldquolittle or no smokerdquo s1 - rdquoquite a lot of
smokerdquo s2 - rdquosubstantial smoke releaserdquo s3
(3) Some construction products like these made of
polystyrene can melt and ignite to form Flaming
Droplets Wooden products on the other hand will tend
to char before the char falls away as Flaming Particles
to expose more material
These rdquoflaming dropletsparticlesrdquo will tend to
initiate new fires away from the original point of
ignition and must be considered when the products
are used horizontally in ceiling or roof applications
The classification system ranks the level of release of
flaming dropletsparticles as d0 (none) d1 (some) and
d2 (quite a lot)
Commno materials and likely Euroclass
Euroclass Flashover potential Example materials
A1 amp A2 No Glass and stone mineral wool concrete brick and plasterboard
B No Typically timber products
C Yes 10 minutes Phenolic foam (foil faced) synthetic rubber
D Yes 2-10 minutes Expanded polystyrene type A extruded polystyrene polyisocyanurate foam (foil faced)
E Yes lt 2 minutes Pylyurethane foam (laminate faced) polyisocyanurate foam (sprayed)
F Yes Early failure or no data Expanded polystyrene type N untested or fails Euroclass E
Reaction to fire
H E A T
F U E L
OXYGEN
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
8122019 Catalogue of Technical Insulations 2013-10-598 En
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
8122019 Catalogue of Technical Insulations 2013-10-598 En
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FIRE PROTECTION DESIGN FOR VENTILATION DUCTS
Produced with the stone wool technology of Isover
fire protection system ORSTECH Protect is mineral
wool that combines all the advantages of conventionalthermal and acoustic insulation with top level of fire
safety Mineral wool insulations have the melting point
higher than 1000 degC From the fire protection point of
view products Isover are one of the safest materials
ORSTECH Protect consists of slab or lamella mat
solutions offering up to one hour fire protection for
both vertical and horizontal applications of rectangular
and circular ductwork systems
Passive protection of ventilation ducts is possible by
two basic means
Installed a fire damper into the duct to the place of
fire separation
Use a fire protection insulation system which is
tested according EN 1366-1 and has a classification
protocol in accordance with EN 13 501-3 This second
case is covered by insulation system ORSTECH
Protect
LEGISLATION
Air duct which shall resist the spread of fire from one
compartment to another is tested according to EN
1366-1 The standard can be applied to vertical and
horizontal ducts with or without branches for fire inside
or outside the duct The test measures the time period
for which ducts of specified dimensions suspended as
they would be in practice satisfy criteria when exposed
to fire from inside or outside (separately)
This standard is used in conjunction with EN 1363-1
which prescribes requirements for the determinationof fire resistance of various components of building
structures which are exposed to standard fire
conditions In this standard there are failure criteria
whereby it is possible to evaluate the ability of a tested
duct to prevent fire spread due to the destruction of
the duct (integrity failure E) heat transfer (insulationfailure I) and prevention of the smoke penetration
(smoke leakage S) Fire protection is expressed by time
in minutes for which failure criteria are fulfilled
Designation itself is then done according to
classification standard EN 13 501-3 Classification
states if criteria are fulfilled for fire outside (marking
o rarr i) valid for duct type A or fire inside (marking
irarr o) or from both directions (iharr o) valid for duct type
B and if this is valid for a horizontal duct (marking ho)
or a vertical one (ve) or both (ve ho) Eg class bdquoEI 30 S
ndash ve ho (orarr i) Sldquo represents duct capability to maintain
integrity insulation and smoke leakage for time period
of 30 minutes under fire exposure from outside both
for vertical and horizontal positions
MAXIMUM DUCT SIZES
Maximum size is according to EN 1366-1 for rectangular
duct 1250 x 1000 mm and for circular duct up to
diameter 1000 mm If a duct has bigger dimensions the
classification protocol cannot be used
Detailled information aboud fire protection systems
ORSTECH Protect and ULTIMATE Protect system can be
found on page 18 or in system date sheets
Duct type Rectangular Circularwidth [mm] height [mm] diameter [mm]
A 1000 500 800
B 1000 250 630
Duct type Rectangular Circular
width [mm] height [mm] diameter [mm]
A + 250 + 500 + 200
B + 250 + 750 + 370
Table 1 Cross-section of test specimen
Table 2 Increase in dimensions of standard size ducts permittedunder direct application
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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ACOUSTIC PERFORMANCE
Noise is a sound which impacts negatively on the
surroundings Noise levels emanating from HVAC
services (pipework ductwork and air handlingequipment) and other services can be significantly
reduced with the use of Isover products which will
help to achieve acceptable environmental noise levels
Isover insulations are due to its fibre structure an ideal
material for sound attenuation not only for industrial
application The degree of sound insulation will depend
upon the application the thickness of insulation used
and the nature of any finish used to clad over the
installation In suitable frequencies they can absorb up
to 95 of the sound energy (α = 095)
SOUND ABSORPTIONWhen a sound wave strikes a surface the sound energy
is broken down into transmitted energy (through the
material) converted energy (usually heat) and reflected
energy (back towards the source of the sound)
The more absorbent the material the less sound is
reflected That part of sound energy which is converted
and transmitted is usually expressed as an absorption
coefficient α
The absorption coefficient for a material varies with
the frequency An absorbent layer of mineral wool
has the best absorption capacity in medium and high
frequencies The absorption in low frequencies is
improved by increasing the thickness or by providing an
air gap behind the absorbent layer
Examples of the effectiveness of Isover products in noise
control are given in the following table
ABSORPTIVE STRUCTURES
The most common task in room acoustics is to attenuate
or cancel some frequencies or a whole frequency band
This is possible to realise by using convenient absorptive
material or structures which are frequency-dependent
In this way we can control not only absorption ie
reverberation time but also suppress or completely
remove unpleasant sounds
In a porous material acoustic absorption is mainlycaused by friction in pores ie friction between
oscillating particles and the surface of pores Since the
energy loss due to friction is proportional to the length
of the path the most absorption will occur when the
porous material is placed in a position where the particle
displacement is the largest (maxima displacement)
When sound strikes a rigid wall like concrete for
example a standing wave result and the maxima of
particle displacement appear at the distances λ14
3λ24 5λ
34 hellip from the surface of a room These are the
critical distances which must be covered by adsorbers
ie layers with thicknesses d1 = λ
14 d
2 = 3λ
24 d
3 = 5λ
34
In short an absorber with a thickeness d placed directly
on the solid structure will effectively attenuate only
those frequencies where f ge c4d (c is the velocity of
sound 340 ms) For example insulation thickness
of 50 mm wil l reliably attenuate frequencies higher
than 1700 Hz thickness 100 mm then already from
frequencies 850 Hz The higher the frequency the
shorter the wave length and better attenuation
An absorbing layer tightly adjacent to a solid structure
has nevertheless one disadvantage To attenuate
low frequencies it would be necessary to use verythick layers (for example for attenuation of 500 Hz a
thickness of about 20 cm would be necessary) Therefore
acoustic tiles can hardly attenuate low frequency noise
(frequencies lower than 100 dB such as noise from
discotheques)
Fortunately it is possible to avoid expensive acoustic
tiles with high thickness If we use a very thin layer
and place it just in the position of the displacement
maximum of a chosen frequency this chosen frequency
and its odd multiples will be attenuated Acoustic
tiles thus work as a selective frequency filter On theselective basis also other acoustic attenuators work
namely membranes oscillating plates and resonators
Converted energy
Transmitted energy
Reflective energy
αconverted + transmitted
incident
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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ACOUSTICS INSULATIONS
Isover stone wool products with a high longitudinal air-
flow resistance (up to 95 kPasm2) and uniform porosity
(93 ndash 99 ) are used as sound attenuation insulations
In suitable frequencies they can absorb up to 95 of
the sound energy (α = 095) Sound attenuation in a
construction is related to elastic properties of Isover
mineral wool insulations and their low modulus of
elasticity (they have low dynamic toughness and
therefore they are much more suitable for acoustic
purposes in comparison with foam plastics)
Sound attenuation properties of Isover products are
characterised by an absorption coefficient α which
can be found in the table for three thicknesses andsix frequencies According to a given noise spectrum
it is possible to design a sound attenuation structure
of which our material is only a part Since we provide
only insulation material we launch only absorption
coefficients Final attenuation will be dependent on
the whole designed construction (considering also
supporting construction hangers) and assembly
Isover does not design sound attenuation and thus it
is necessary to ask specialists who are able to design a
proper structure
Generally we can say that transmission loss is higher
for constructions with higher plane weight therefore
in most cases insulation with higher density has
better sound attenuation (eg slabs Orstech 65 90
110 Isover FireProtect 150) than insulation with lower
density (eg Orstech 45) Slabs can be manufacturedwith a facing ndash glass black tissue
12-13
Acoustic absorption coefficient α for perpendicular impact of acoustic wavesaccording to ISO 10534-1
Frekvence Hz 125 250 500 1000 2000 4000
Orstech 451)
40 mm 009 018 047 083 099 090
80 mm 027 049 089 092 095 097
100 mm 033 076 090 092 093 098
Orstech 651)
40 mm 010 024 060 087 096 094
80 mm 036 050 081 079 092 094
100 mm 041 060 084 086 094 095
Orstech 901)
40 mm 013 031 069 079 090 093
80 mm 037 050 059 072 083 093
100 mm 043 054 065 077 089 091
Orstech 1101)
40 mm 016 036 051 072 083 089
80 mm 034 048 061 075 086 093
100 mm 036 044 060 066 084 086
IsoverFireProtect 1502)
20 mm 005 020 055 085 095 10040 mm 020 065 090 090 095 095
60 mm 035 085 090 095 095 100
100 mm 045 070 085 095 095 100
1) according to EN ISO 10534 - 12) according to EN ISO 354 and EN ISO 11654
Sound absorption coefficient αw
according to EN ISO 11654
Orstech 4540 mm 04580 mm 085
100 mm 090
Orstech 65
40 mm 055
80 mm 075
100 mm 090
Orstech 90
40 mm 060
80 mm 070
100 mm 090
Orstech 110
40 mm 055
80 mm 075
100 mm 090
IsoverFireProtect 150
20 mm 05040 mm 090
60 mm 095
100 mm 090
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030
020
010125 250 500 20001000 4000
Sound absorption coefficient of technical slabs withthickness 100 mm
Sound absorption coefficient of technical slabs withthickness 40 mm
frequency [Hz]
a l f a
[ -
]
100
090
080
070
060
050
040
030125 250 500 20001000 4000
Orstech 110
Isover FireProtect 150
Orstech 45
Orstech 65
Orstech 90
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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GENERAL RULES FOR USING ISOVER INSULATIONS
Between insulated piping sufficient distances must
be kept
Valves should be placed without needing to go on theinsulated pipes when handling them
Spindle of valves should not be installed in an upward
direction to avoid water leakage into the insulation
Surfaces before insulating must be clean and dry It
is not possible to insulate wet or frostbitten surfaces
which may later cause damages of insulation or
insulated surfaces
Dirt and rust must be rubbed down from untreated
carbon steels
Smear and oils must be removed by detergents or
solvents from insulated surfaces
Stainless steel surfaces must not be cleaned by
detergents or solvents with chloride content They
may be cleaned only by stainless steel brushes
Chloride solution attacks stainless steel surface and
causes stress corrosion cracking in the material With
increasing surface temperature the danger of stress
corrosion cracking is raised
Piping and equipment from stainless steel can be
insulated only by mineral wool insulation in AS
quality Such material can have maximum content
of chloride ions of 10 mg in 1 kg of the insulation
material
It is necessary to avoid contact of metals which can
cause galvanic corrosion (Cu-Zn Fe-Al)For operating temperatures higher than 600 degC
aluminium jacketing should not be used
Self-tapping screw bold or rivet should be from the
same material as the jacketing
Surfaces with temperatures higher than 500 degC
should be insulated by more insulation layers in a
way that each layer has a different apparent density
Material with higher density insulates better under
higher temperatures than material with lower
density therefore insulation with higher density is
placed closer to the hot side Under low operating
temperatures thermal performance is almost equalSafety working principles must be kept for insulation
assembly
Isover products are packed into PE foil They must be
transported in covered vehicles under such conditions
to avoid moistening or other degradation They must
be stored in covered places
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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Wired mats
After the cutting of needed length the wired mat shall
be tightly wrapped on the pipe Wired matsrsquo butt jointsshould be in close contact to each other to ensure no
gaps between mats For multiple layer construction
each layer is staggered when applied Each layer must
be secured in place before the next is applied Individual
mats are bound together with a wire with minimal 07
mm thickness Alternatively wired hook or stainless
steel bands (with minimum width of 10 mm) can be
used Maximum distance between hooks is 150 mm
The decision to use multiple layers may be made for one
or more of the following reasons
to provide compensation for pipe expansion andcontraction
to reduce heat flow by staggering joints thus creating
a more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Lamella mats
Lamella mats Orstech LSP H consist of mineral wool
lamellas which have been glued to aluminium foil
reinforced with a glass fibre grid and these fibres are
predominantly perpendicular to the surface of themat Compressive strength but thermal conductivity
too are increased compared to mats with a fibre
orientation parallel to the surface (wired mats) Due
to its compressive strength resistance they have less
demands for undeconstruction (less thermal bridges)
in comparison with wired mats Temporary securing in
place is done by aluminium tapes final fixing shall be
done by a baling wire
Protective coverings
The efficiency and service of insulation is directly
dependent upon its protection from moisture entry andmechanical and chemical damage Choices of jacketing
materials are based upon the mechanical chemical
thermal and moisture conditions of the installation
as well as cost and appearance requirements The
basic function of the weather protection is to protect
the insulation from rain snow sleet wind solar
radiation atmospheric contamination and mechanical
damage With this definition in mind several service
requirements must be considered
PIPING INSULATION
For domestic hot water piping with smaller diameters
insulation pipe sections which are covered withaluminium foil are ideal Pipe sections with a facing
have a self-adhesive overlap in a longitudinal joint
to ensure perfect enclosure of a pipe section It is
recommended to secure pipe sections by an aluminium
tape or by galvanized wire transversely They are usually
knotted three times per meter more for pipe sections
with higher diameter Higher diameters should be
secured either by wire or by metal band (at least two
bands per meter)
Pipings with bigger diameters are most commonly
insulated by lamella mats Orstech LSP (stone woolinsulation) or Isover ML-3 (glass wool insulation)
eventually by wired mats Orstech DP (especially for higher
temperatures) Lamella and wired mats are also suitable
for appliances and vessels (both ends and cylindrical
parts) residential heating systems and air ducts
APPLICATION OF TECHNICAL INSULATION
Protective layer removal from the aluminium self-adhesive overlap
Butt joints sealing with the aluminium tape
Insulation pipe section before installation
Lamella mat Orstech LSP H on bigger diameterpiping
Perimeter [mm]Galvanizedsteel [mm]
Stainlesssteel [mm]
Aluminium[mm]
lt 400 05 05 06
400 ndash 800 06 05 1
800 ndash 1 200 07 06 1
1 200 ndash 2 000 1 08 1
gt 2 000 1 08 12
Thicknesses of metal jacketing materials
12
3
1 hellip pipe
2 hellip Isover insulation
3 hellip metal steel jacketing is
required for outdoor application
14-15
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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Internal mechanical forces ndash expansion and contraction
of the pipe or vessel must be considered because the
resulting forces are transferred to the external surface ofthe weather barrier Ability to slide elongate or contract
must be provided
External mechanical forces ndash mechanical abuse (ie
tools being dropped abrasion from wind-driven sand
personnel walking on the system) inflicted on a pipe or
vessel needs to be considered in design This may affect
insulation type as well as the weather barrier jacketing
type
Chemical resistance Some industrial environments may
have airborne or spilled corrosive agents that accumulate
on the weather barrier and chemically attack the pipe or
vessel jacketing Elements that create corrosive issues
must be well understood and accounted for Insulation
design of coastal facilities should account for chloride
attack
Galvanic corrosion Contacts between two different
types of metal must be considered for galvanic corrosion
potential Similarly water can act as an electrolyte and
galvanic corrosion can occur because of the differentpotential of the pipe and vessel and a metal jacketing
Materials used as weather barriers for insulation
Typical metal jacketing materials bare aluminium coated
aluminium stainless steel painted steel galvanized steel
aluminium-zinc coated steel
Typical polymeric jacketing materials polyvinyl chloride
(PVC) polyvinyliedene chloride (PVDC) polyisobutylene
multiple-layer composite materials (eg polymericfoil
mesh laminates) fabrics (silicone-impregnated fibreglass)
Fittings valves
Insulation of fittings valves flanges and couplings is
the most time consuming and often expensive aspectof commercial and industrial insulation But it is crucial
to insulate also these parts properly otherwise most of
energy will be transported by these thermal bridges For
example for 200 degC medium heat loss of one uninsulated
valve corresponds to one meter of uninsulated pipe or
ten meters of uninsulated pipe
Fittings are items used to change size direction of flow
level or assembly of piping They may be of the screwed
sweat or welded types Valves are any of various devices
that regulate liquid or gas flow and they may be of the
screwed sweated flanged or welded types Flanges areprotruding rims and edges of the screwed or sweated
type used with fittings valves couplings etc And finally
mechanical couplings are devices used in assembly of
piping Screwed and flanged connections on fittings
valves couplings etc usually require oversized insulation
applications to compensate for the protrusions
Minimum spacing between pipes and
constructions
It is essential to ensure sufficient space between pipies
and between a pipe and a wall (minimally 100 mm)
Otherwise there is a great danger of creating a zone withalmost no cenvenction The result can be too high surface
temperature (needed personal protection against burn)
or possibility of condensation on cold piping Besides
mounting would have been more difficult
Minimum spacing between pipes and constructions
Using insulation pipe sections
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 80 120 220
Ceilings and walls (b) 50 70 120
Using mats
Minimum distancesOutside pipe diameter (a)
od 32 40 ndash 50 65 ndash 100
Pipe (c) 100 160 280
Ceilings and walls (b) 60 90 150
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
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s e c t i o n
p aacute s
l a m e l l a
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s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
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6 5
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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DUCTING INSULATION
Isover products are designed to provide high levels of
thermal acoustic and fire protection insulation in HVACductwork applications such as rectangular flat oval and
circular ductwork
The most suitable insulation materials for ducts are
felts KLIMAROL with aluminium foil facing lamella mats
Orstech LSP or Isover ML-3 wired mats Orstech DP or
slabs Orstech H with aluminium foil facing
Duct insulation mounting
Insulation is mostly fixed to the duct by welded pinsWhen using Orstech H slabs with aluminium facing all
the joints shall be sealed with aluminium tape If a steel
clamping band is used it is necessary to use thin-walled
steel L-profiles to avoid trimming of the insulation If
using Orstech slabs without aluminium facing or Orstech
DP wired mats proper jacketing shall be made (the most
suitable is metal steel jacketing)
Lamela mat length calculation for
ducting
Circular duct
L = (d + 2t) π
Rectangular duct
L = 2a + 2b + 8t Cutting of Orstech slabs
Fixing Orstech slabs to the duct
Sealing joints and edges
d
t
t ta
t
b
t
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
8122019 Catalogue of Technical Insulations 2013-10-598 En
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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FIRE PROTECTION OF VENTILATION DUCT
Description
It is vital to develop safe durable and reliable solutions
for ventilation systems as fire can easily spread from the
point of origin via ductwork Isover meets the highest
standards for fire protection providing excellent fire
resistance and top-rated reaction to fire performance
Rectangular ducts shall be insulated by Orstech 65 H
slabs with 40 mm thickness (60 mm for fire resistance EI
60 for a horizontal duct) circular ducts shall be insulated
by Orstech LSP PYRO lamella mats with 50 mm thickness
By these solutions fire resistances EI 15 30 45 and 60 S
have been certified to comply with EN 1366-1
Orstech system with fire resistance has been proven to
meet the requirements of all possible scenarios for fire
from the outside The scenarios can be identified by duct
orientation and duct shape (see table below) Horizontal
ducts normally serve one floor of a building Vertical
ducts normally serve between floors of a building All
scenarios have been done only with one layer Insulation
is fixed to a duct by welded pins Such solution is time
and material saving
Metal ductworkThe steel duct is constructed in sections of galvanised
steel sheet or stainless steel sheet minimum 08 mm thick
(standard duct sheeting for rectangular ducts specified
in DIN 24190 for circular ducts in DIN 24145) Maximum
duct size for which classification protocol is valid is 1250
mm (width) x 1000 mm (height) for rectangular duct or
diameter up to 1000 mm for a circular duct
At each cross joint flanges are fastened to the duct
with spot welds at 150 mm nominal centres
Use a ceramic tape gasket and fire-stopping mastic
between the flanges to seal the joints
Flanges are bolted together with an M10 steel nut
and bolt at each corner
Fasten the flanges together with steel clamps with
bolts M8 (see the figure) in quantity of 3 clamps per 1
meter of the flange length
Drop rods and hangers
Rectangular ducts are suspended by threaded rods and
channel section bearers A duct shall be hung with asuspension system which is independently fire rated
according to EN 1363-1 Certificated suspension system
MUPRO is recommended for the purpose Each steel
hanger consists of two threaded drop rods minimum
M10 and a channel section bearer 3840 mm Fasten
the bearer to the drop rods using hexagonal nuts and
washers The drop rods can be positioned either inside
the insulation material or outside If drop rods are outside
there is no need to insulate them separately The bearers
are positioned inside the insulation material
Circular ducts are suspended by MUumlPRO steel hangerswhich consist of two threaded drop rods minimum
M10 and a two-part industrial circular band The ends
of each band section are bent outwards Fasten the band
sections together and attach them to the drop rods with
hexagonal nuts and washers Place these hangers inside
the insulation The rods do not need to be protected by
insulation
When fixing them to a concrete construction use all-
steel expanding anchors to fasten the threaded rod
hangers to concrete soffits The anchors should penetrate
the concrete by at least 60 mm When fixing to a steel
supporting construction drill a hole through the steel
member allowing the drop rod to be supported by a steel
nut and washer above If a clamp type fixing is used the
clamp must be steel suitable for the purpose It should
pass around the steel member and be fastened back on
itself Clamps that rely on friction to hold them in place
are not suitable
Fire resistance Horizontal Vertical
Rectangular ductEI 15 30 45 S 40 mm 40 mm
EI 60 S 60 mm 40 mm
Circular duct
EI 15 30 45 60 S 50 mm 50 mm
Flanges with ceramictape gasket andfire-stopping mastic
secured by clamps
Detail of the channelsection bearer
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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Insulation
Rectangular ducts are insulated by Orstech 65 H slabs
(with apparent density 65 kgm3 and with one-sidedaluminium foil facing) with 40 mm thickness (60 mm
for fire resistance EI 60 for a horizontal duct) Circular
ducts are insulated by lamella mats Orstech LSP PYRO
with 50 mm thickness Insulation slabs (lamella mats)
need to be cut to fit the duct as tightly as possible the
insulation may need to be cut to fit around flanged duct
joints Install the insulation so that one slab (lamella
mat) is adjacent and tightly fitted against the other No
gaps must be present between butt joints of insulation
Insulation can be easily cut with a standard laggers knife
There is no need for adhesive on joints All the joints shall
be sealed by aluminium tape For rectangular ducts in theposition of flange the slabs are snick first 15 mm of the
thickness to avoid lifting of the slabs Butt joints should
be positioned out of flanges Fire protective insulation for
circular ducts does not require usage of a wire net mesh
on the outer side of insulation
Stud welded pins
The insulation is fixed to the duct using steel pins 27 mm
to 3 mm nominal diameter and spring steel washers
minimum 30 mm diameter The length of pin should
be equal to the insulation thickness The orientational
number of pins is 16 piecesm2 for rectangular ducts and14 piecesm2 for circular ducts
Recommended distance from duct edges and joints is
80 mm 50 mm from flanges
Wallfloor penetration
At wallfloor penetration one must insure the same fire
resistance of ventilation duct as has the fire separation
to avoid the spreading of fire from one compartment to
other via a duct This is possible by two basic principles
or their combinations - install a fire damper at the
penetration point or use insulation with fire resistancewhere the crucial thing is the fire-stopping The fire-
stopping is from the second insulation layer with the
width of 150 mm from both side of fire separation
The same general principle is used for both rectangular
and circular ducts regardless of orientation Place
the duct in the penetration of the construction with
approximately 10 mm gap between insulated duct and
opening Before installing the fire-stopping with the
same insulation thickness as is used for the first layer
pack the space between the duct and partition with
as many pieces of insulation as possible Ensure tight
compression in order to completely fill the opening This
must be done because system ORSTECH Protect does
not require stiffeners inside the duct Then install thesecond insulation layer so that it is adjacent and tightly
fitted against the penetration The insulation must be
cut leaving excess length so that it exerts some pressure
between the penetration and the last fitted piece of
insulation
The second layer is fixed by welded pins with length
equal to double insulation thickness The second layer for
circular ducts (lamella mats) is clamped with 1-2 wires
with a diameter 16 mm Then the insulation is secured
to the duct by welded pins
A inovative solution is the considerable simplification of
a fire-stopping concept There is no need to use any kind
of stiffener either inside or outside of the duct A great
advantage is to mount the whole ventilation section
at once and the wall itself can be placed anywhere
Therefore the position variability of fire separation is
provided No glue or mastic is needed at wallfloor
penetrations
Fire classification
ORSTECH Protect insulation with fire resistance has
been tested by the fire testing laboratory Pavus as an
authorised body AO 216 Classification protocols on the
request
Fire protection system ORSTECH Protect has been tested
in accordance with EN 1366-1 Maximum size for the
rectangular duct is 1250 x 1000 mm and for the circular
duct up to diameter 1000 mm If a duct has bigger
dimensions the certificate connected to the standard
cannot be used
More information
For more information about fire protective systems
ORSTECH Protect and ULTIMATE Protect see product date
sheets
Butt joints of insulation are placedapart from flanges
There is no need to use any
kind of stiffener either in-side or outside of the duct
Cross-section through a duct at the fire-stopping
(wallfloor penetration)
18-19
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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to provide compensation for pipe expansion and
contraction
to reduce heat flow by staggering joints thus creatinga more thermally efficient installation
to achieve thickness in excess of manufacturersrsquo
capabilities
for retrofitting purposes
Insulation is usually fixed by mechanical fasteners - by
studs or pins Spacing between them is dependent on the
design of the vessel its surface temperature fire hazard
potential involved and presumptive loading Each slab
should be fixed by minimally two pins
BOILER INSULATIONInsulations for boilers kettles and ovens are one of
the most demanding applications in industry because
these units are operating at very high temperatures
Good insulation not only saves energy considerably but
the main purpose is personal protection against burn
According to the surface shape and temperature are used
either slabs with higher densities Orstech 65 to 110 (for
boilers with flat surfaces) or wired mats Orstech DP 65 to
DP 100 (for boilers with cylindrical parts)
Boiler walls are exposed to very high temperatures
(usually around 500 or 600 degC) Therefore it is essential
to use mechanical fasteners for the fixing of insulation
to the surface Insulation for boilers is done in at least
two layers each layer must be staggered when applied
Each layer must be secured in place before the next is
applied A product with high density should be placed as
the first layer because it has a higher maximum surface
temperature (higher resistance against high operating
temperatures) and better insulation performace than
products with lower densities
CHIMNEY INSULATION
Insulations for prefabricated chimneys are directly
supplied by producers of such systems In cooperation
with specialized wholesale companies we offer slabs
with multi-plate stripes which allow easy and perfect
application for prefabricated chimneys suitable both
for stainless steel chimney liners as well as with other
brands of chimney lining systems The main advantage
is the time saving during the installation in comparison
with the use of lamella mats and horizontal orientation
of fibres (better thermal conductivity) Insulation
dimensions ie thickness of slabs and groove dimensions
dependent on the chimney diameter are supplied
according to customer needs
For non-prefabricated chimneys are mostly used wired
mats Orstech DP or slabs Orstech 90 or 110 (for chimneys
with rectangular cross-section)
TECHNOLOGICAL APPLIANCEINSULATIONWhere big quantities of energy is used eg within
petrochemical paper and pulp industries thermal
insulation is necessary in order to reduce expensive
energy losses Tanks vessels exhausts exchangers
and technological piping are appliances that are often
working at high temperatures Good insulation will save
energy considerably which will benefit the environment
and keep the working costs down At the same time
the insulation will reduce temperature fall which could
disturb the production process
Proper insulation can be chosen in accordance with
dimension surface temperature the manner of fixing
and requirements for jacketing For pipes and cylindrical
parts are used lamella mats Orstech LSP H and Isover
ML-3 (only for temperatures up to 250 degC) or wired mats
Orstech DP For appliances and vessels with rectangular
shapes Orstech slabs are suitable (type according to a
surface temperature) Slabs can have aluminium facing
If insulation is done in more than one layer each layer
is staggered when applied Each layer must be secured
in place before the next is applied The decision to use
multiple layers may be made for one or more of the
following reasons
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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ISOVER PRODUCTS FOR TECHNICAL INSULATIONS
Slabs are suitable especially for air ducts They can be manufactured without a facing with the aluminium foilfacing (Orstech 45 H) or with the glass tissue facing (Orstech 45 NT) Maximum service temperature 250 degC Ifthe slab is with a facing then the surface temperature must not exceed 100 degC on the facing proper thickness ofinsulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 65 H) or with the glasstissue facing (Orstech 65 NT) Slab Orstech 65 H is part of certificated fire protection system ORSTECH Protectfor fire resistant ductwork according to EN 1366-1 for fire resistances 30 45 and 60 minutes Maximum servicetemperature 620 degC If a slab is with a facing then the surface temperature must not exceed 100 degC on the facingproper thickness of insulation must be designed to fulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm) Dimensions(mm) Per package(m2) Per package(m3)40 1000 x 500 60 02450 1000 x 500 50 02560 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 25 025
Orstech 983094983093 | - SLAB
OH 65 kgm3 MST 620 degC
Orstech 983092983093 | - SLAB
OH 45 kgm3 MST 250 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 02450 1000 x 500 40 02060 1000 x 500 40 02480 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983097983088 | - SLAB
OH 90 kgm3 MST 640 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems and airducts Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 90 H) or with the glasstissue facing (Orstech 90 NT) Maximum service temperature 640 degC If the slab is with a facing then the surfacetemperature must not exceed 100 degC on the facing proper thickness of insulation must be designed to fulfil thatReaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 1000 x 500 60 024
50 1000 x 500 40 02060 1000 x 500 40 024
80 1000 x 500 30 024
100 1000 x 500 20 020
Orstech 983089983089983088 | - SLAB
OH 110 kgm3 MST 660 degC Slabs are suitable for appliances and vessels (both ends and cylindrical parts) residential heating systems air ductsand chimneys Slabs can be manufactured without a facing with the aluminium foil facing (Orstech 11 0 H) or withthe glass tissue facing (Orstech 110 NT) Maximum service temperature 660 degC If the slab is with a facing thenthe surface temperature must not exceed 100 degC on the facing proper thickness of insulation must be designed tofulfil that Reaction to fire A1 NT facing A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 1000 x 1200 720 144
25 1000 x 1200 576 144
30 1000 x 1200 480 144
35 1000 x 1200 396 139
40 1000 x 1200 360 144
50 1000 x 1200 288 144
60 1000 x 1200 240 144
Isover FireProtect 150 | - SLAB
OH 150 kgm3 MST 700 degC Slabs Isover FireProtect 150 are used for several applications The ISOVER FireProtect system provides efficientprotection of structural steelwork contains few components and can be installed without using complex andexpensive equipment The system is tested according to EN 13381-4 and approved by Norwegian lab SINTEF NBLIt is also used as a semi-product for additional processing Exceptional thickness tolerance plusmn1 mm at a productionof FireProtect slabs is ideal for a production of fire doors Slabs are also used for fire-stopping solutions when pipescables etc penetrate fire separation walls I N N O
V A T I O N
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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Lamella mats Orstech LSP consist of mineral wool lamellas which have been glued to aluminium foil reinforced witha glass fibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strengthbut thermal conductivity too are increased compared to mats with a fibre orientation parallel to the surface Lamellamats Orstech LSP 40 are suitable for piping appliances and vessels (both ends and cylindrical parts) residentialheating systems and air ducts Lamella mats Orstech LSP PYRO with the thickness of 50 mm are part of fire resistantductwork system ORSTECH Protect (EI 60 S according EN 1366-1)
Lamella mats consist of glass wool lamellas which have been glued to an aluminium foil reinforced with a glassfibre grid and these fibres are predominantly perpendicular to the surface of the mat Compressive strength butthermal conductivity too are increased compared to wired mats Lamella mats are suitable for piping appliancesand vessels (both ends and cylindrical parts) residential heating systems and air ducts Maximum servicetemperature 250 degC Surface temperature on the aluminium side must not exceed 100 degC proper thickness ofinsulation must be designed to fulfil that Reaction to fire A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
MPS(m2)
20 12000 x 600 144 029 17280
30 8000 x 600 96 029 11520
40 6000 x 600 72 029 8640
50 5000 x 600 60 030 7200
60 4000 x 600 48 029 5760
80 3000 x 600 36 029 4320
100 2500 x 600 30 030 3600
Isover ML-3 | - LAMELLA MAT
OH 25 kgm3 MST 250 degC 100 degC
Orstech LSP PYROOH 65 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 800 01630 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
Orstech LSP HOH 55 kgm3 MST 620 degC 100 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
20 8000 x 1000 80 016
30 5000 x 1000 50 015
40 5000 x 1000 50 020
50 4000 x 1000 40 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 2800 x 1000 28 028
Orstech LSP 40
OH 40 kgm3 MST 250 degC 100 degC
| - LAMELLA MAT
Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 65 X) or with stainless wire and stainless mesh (marking Orstech DP65 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service tempera-ture 560 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on thealuminium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 3000 x 1000 30 012
50 3000 x 1000 30 015
60 3000 x 1000 30 018
80 2500 x 1000 25 020
100 2500 x 1000 25 025
120 2300 x 1000 23 028
Orstech DP 983094983093 | - WIRED MAT
OH 65 kgm3 MST 560 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 5000 x 1000 500 015
40 5000 x 1000 500 020
50 4000 x 1000 400 020
60 4000 x 1000 400 024
80 3000 x 1000 300 024
100 2800 x 1000 280 028
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
8122019 Catalogue of Technical Insulations 2013-10-598 En
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
8122019 Catalogue of Technical Insulations 2013-10-598 En
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
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8122019 Catalogue of Technical Insulations 2013-10-598 En
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A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylindricalparts) residential heating systems air ducts and mattresses For request it is possible to produce mats with stainlesswire and galvanized mesh (marking Orstech DP 80 X) or with stainless wire and stainless mesh (marking Orstech DP 80X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximum service temperature
640 degC If the wire mat is with an aluminium facing then the surface temperature must not exceed 100 degC on the alu-minium side proper thickness of insulation must be designed to fulfil that Reaction to fire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 8000 x 500 40 01240 8000 x 500 40 01650 5000 x 500 25 01360 5000 x 500 25 01570 5000 x 500 25 01880 4000 x 500 20 016
100 4000 x 500 20 020120 3000 x 500 15 018
Orstech DP 983096983088 | - WIRED MAT
OH 80 kgm3 MST 640 degC
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
30 6000 x 500 30 00940 5000 x 500 25 01050 4000 x 500 20 01060 4000 x 500 20 01270 3000 x 500 15 01180 3000 x 500 15 012
100 3000 x 500 15 015120 3000 x 500 15 018
Orstech DP 983089983088983088 | - WIRED MAT
OH 100 kgm3 MST 660 degC Wired mats are quilted to a wire mesh They are suitable for piping appliances and vessels (both ends and cylind-
rical parts) residential heating systems air ducts and mattresses For request it is possible to produce mats withstainless wire and galvanized mesh (marking Orstech DP 100 X) or with stainless wire and stainless mesh (markingOrstech DP 100 X-X) It is also possible to add aluminium foil under mesh as a protection against dust Maximumservice temperature 660 degC If the wire mat is with an aluminium facing then the surface temperature must notexceed 100 degC on the aluminium side proper thickness of insulation must be designed to fulfil that Reaction tofire A1 H facing A2
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
40 5000 x 1000 50 020
60 4000 x 1000 40 024
80 3000 x 1000 30 024
100 3000 x 1000 30 024
Klimarol | - DUCT WRAP
OH 40 kgm3 MST 250 degC 100 degC Duct wraps are compressible elastic bonded mineral wool insulations which have been glued to an aluminiumfoil reinforced with a glass fibre grid Felts are ideal for air ducts Klimarol should not be used for higher thermalexposure applications Surface temperature on the aluminium side must not exceed 100 degC Reaction to fire A2
Inner diame-
ter [mm]22 28 35 42 48 57 60 70 76 89 102 108 114 133 140 159 168 194 219 245 273
I n s u l a t i o n t h i c k -
n e s s [ m m ]
25 X X X X X X X30 X X40 X X506080 X X X X X
100 X X X X X
Insulation pipe sections are produced in length 1000 or 1200 mm Detailed information can be found in a productdata sheet
Insulation pipe section cut from mineral wool blocks Pre-formed mineral wool snap-on pipe sections are single-layered hollow cylinders made of one or more segments Snap-on configuration prevents the longitudinal slotagainst heat loss Pipe Sections can be supplied without an outer facing or with a factory-applied reinforcedaluminium foil facing incorporating a self-adhesive overlap Insulation pipe sections designed to provide thermaland acoustic insulation of pipework in HVAC and industrial applications Maximum service temperature 620 degCSurface temperature on the aluminium side must not exceed 100 degC proper thickness of insulation must bedesigned to fulfil that Reaction to fire A1
L (pipe section without facing) A2
L (pipe section with aluminium foil)
Mineral wool fibres are processed into the final shape of blocks at the production line from which several producerscut insulation pipe sections themselves that are sold under various trademark on the market Non-standarddimensions which are not in the table can be produced after agreement with a producer Outer piping diameter =inner insulation pipe section diameter
Insulation pipe sectionOH 65 kgm3 MST 620 degC
Minimal volume need to be consulted with a producer
8122019 Catalogue of Technical Insulations 2013-10-598 En
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U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
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Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
8122019 Catalogue of Technical Insulations 2013-10-598 En
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OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2728
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2828
A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2428
U Protect Wired Mat 40 Alu1 | - WIRED MAT
OH 66 kgm3 MST 620 degC Wired mat with reinforced aluminium foil facing U Protect Wired Mat 40 Alu1 is part of certified fireprotective system ULTIMATE Protect for fire protection of air ducts
Corner joints are secured with Isover FireProtect Screws the screw length must be 2 x the insulationthickness
To avoid leakage caused by elongation of the ductwork the slabsmats need to be glued to the fire-separation construction using Isover Protect BSK (thickness ~ 2 mm) No other joint has to be glued
U Protect Slab 40 Alu1 | - SLAB
OH 66 kgm3 MST 620 degC
Isover FireProtect Screw | - SCREWS
Length (mm) Pcs Package
60 1000
80 1000
100 500
120 500
140 500
160 200
180 200
200 200
Isover Protect BSK| - NON-COMBUSTIBLE GLUE
PackageContent
(kgpackage)
Bucket 15
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Pallet(m2)
30 1200 x 600 936 028 11232
40 1200 x 600 720 029 8640
60 1200 x 600 432 026 5184
80 1200 x 600 360 029 4320
100 1200 x 600 288 029 3456
Thickness(mm)
Dimensions(mm)
Per package(m2)
Per package(m3)
Paleta(m2)
30 10000 x 600 120 036 21600
40 7500 x 600 90 036 16200
60 5000 x 600 60 036 10800
75 4000 x 600 48 036 8640
100 3000 x 600 36 036 6480
120 2500 x 600 30 036 5400
Fire protective system ULTIMATE ProtectProgressive insulation system ULTIMATE Protect for fire protection of air ducts (EN 1366-1) and multi-compartment smoke extraction ducts (EN 1366-8)Rectangular ducts are insulated by slabs U Protect Slab 40 Alu1 Circular ducts are insulated by wired mats U Protect Wired Mat 40 Alu1 Thickness is dependenton required fire resistance Density of both products is just 66 kgm3 thus makes cutting bending or filling faster and more efficient than ever Details aboutULTIMATE Protect system are available in system data sheets
Composition of the systemSlabs U Protect Slab 40 Alu1 or wired mats U Protect Wired Mat 40 Alu1 Isover FireProtect Screw Intumescent paint Isover Protect BSF Non-combustible glue Isover Protect BSK
Slab with reinforced aluminium foil facing U Protect Slab 40 Alu1 is part of certified fire protectivesystem ULTIMATE Protect for fire protection of air ducts and multi-compartment smoke extractionducts
Seal the joint with intumescent paint Isover Protect BSF to prevent gas leakage at the penetration offire separation wall This has to be done on both sides of the construction Use a spatula to apply alayer of ~2 mm thickness Penetration done according to system data sheet is full-valued solution of thefire-stopping no other special solution is needed When exposed to fire or heat the product developsa micro-porous insulating foam-layer protecting duct from the influence of fire due to its low heatconductivity and the lack of oxygen
Isover Protect BSF | - INTUMESCENT PAINT
PackageContent
(kgpackage)
Bucket 15
I N N O V A T I
O N
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 252824-25
Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2628
OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2728
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2828
A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 252824-25
Orstech 983092983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300
Wm-1K-1 0043 0052 0064 0079 0099 0123
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0049 0061 0074 0089
Orstech 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0264
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0040 0046 0054 0064 0076 0091 0128 0175 0232
Orstech 983097983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0060 0071 0083 0112 0150 0195 0220
Orstech 983089983089983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0045 0052 0059 0067 0077 0100 0130 0168 0191
IsoverFireProtect 983089983093983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13162
degC 10
Wm-1K-1 0037
Orstech LSP HDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Orstech LSP 40
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250
Wm-1K-1 0046 0056 0070 0086 0106
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0042 0052 0063 0076 0090
Orstech LSP PYRODeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600
Wm-1K-1 0046 0056 0070 0086 0106 0129 0188 0264 0363
Measured value of the thermal conductivitycoefficient in accordance with EN 12667 Wm-1K-1 0042 0052 0063 0076 0090 0107 0148 0202 0270
Isover ML-983091Measured value of the thermal conductivitycoefficient in accordance with EN 12667
degC 10 40 100 150 200 250
Wm-1K-1 0038 0043 0058 0076 0091 0109
Orstech DP 983094983093Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 550
Wm-1K-1 0041 0048 0058 0069 0083 0100 0142 0196 0228
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0048 0058 0069 0081 0095 0128 0171 0197
Orstech DP 983096983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0056 0065 0077 0090 0121 0160 0207 0236
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0039 0046 0053 0061 0071 0081 0106 0138 0176 0199
Orstech DP 983089983088983088Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 50 100 150 200 250 300 400 500 600 650
Wm-1K-1 0041 0048 0055 0064 0074 0085 0111 0145 0190 0218
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0038 0044 0051 0058 0066 0075 0096 0123 0157 0177
KlimarolDeclared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 0 10 50 100
Wm-1K-1 0038 0039 0043 0052
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0035 0036 0039 0049
Insulationpipe section
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 250 300
Wm-1K-1 0040 0044 0055 0068 0087 0110 0136
Measured value of the thermal conductivitycoefficient in accordance with EN 12667
Wm-1K-1 0037 0043 0053 0066 0084 0106 0131
U Protect Slab40 Alu1Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
U Protect Wired Mat40 Alu1
Declared value of the thermal conductivitycoefficient λ
D according to EN ISO 13787
degC 10 50 100 150 200 300 400 500 600
Wm-1K-1 0033 0035 0040 0047 0054 0072 0096 0120 0162
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2628
OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2728
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2828
A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2628
OVERVIEW OF TECHNICAL INSULATION APPLICATION
M I N E R A L W O O L I N S
U L A T I O N I S O V E R
s t o n e w o l
g l a s s w o o l
U L T I M A T E
OrstechLSP 40
OrstechLSP H
OrstechLSP PYRO
OrstechDP 65
OrstechDP 80
OrstechDP 100
Orstech45
Orstech65
Orstech90
Orstech
110
Insulation
pipe
section
Klimarol
IsoverML-3
U Protect
Slab 40Alu1
U ProtectWired Mat40 Alu1
S h a p e
l a m e l l a m a t
w i r e d m a t
s l a b
p i p e
s e c t i o n
p aacute s
l a m e l l a
m a t
s l a b
w i r e d m a t
A p p a r e n t d e n s i t y ( k
g m 3 )
4 0
5 5
6 5
6 5
8 0
1 0 0
4 5
6 5
9 0
1
1 0
6 5
4 0
2 5
6 6
6 6
P i p i n g
R e s i d e n t i a l h e a t i n g
s y s t e m s u p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
I n d u s t r i a l a p p l i c a t i o n
1
1
1
1
1
1
1
1
1
A i r d u c t i n g
C i r c u l a r
1
1
1
1
1
1
1
1
1
R e c t a n g u l a r
1
1
1
2
2
2
1
1
1
1
1
1
1
2
I n d u s t r i a l t a n k s a n d v e s s e l s
T a n k s a n d v e s s e l s u
p t o 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
1
1
1
T a n k s a n d v e s s e l s o
v e r 2 5 0 deg C
1
1
1
1
1
1
1
1
1
1
B o i l e r s a n d f u r n a c e
s
1
1
1
2
2
1
D o m e s t i c h o t w a t e r b o i l e r s
2
2
2
1
1
1
1
T u r b i n e s
1
1
1
2
2
2
2
1
C h i m n e y s
1
1
1
2
1
1
2
1
F i r e p r o t e c t i o n o f v e n t i l a t i o n d u c t s
C i r c u l a r d u c t s
1
1
R e c t a n g u l a r d u c t s
1
1
S o u n d a t t e n u a t i o n
i n s u l a t i o n s
P i p i n g
1
1
1
1
1
1
1
1
1
1
P l a n e s u r f a c e
1
1
1
1
1
1
ndash r e c o m m e n d e d
2
ndash s u i t a b l e
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2728
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2828
A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2728
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2828
A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
8122019 Catalogue of Technical Insulations 2013-10-598 En
httpslidepdfcomreaderfullcatalogue-of-technical-insulations-2013-10-598-en 2828
A lifetime investment which pays off daily
The information is valid up to date of publishing The manufacturer reserves right to change the data
1 0 -
2 0 1 3
MarketingPočernickaacute 27296 bull 108 03 Praha 10 bull Tel +420 296 411 735 bull Fax +420 296 411 736
Customer servisMasarykova 197 bull 517 50 Častolovice bull Tel +420 494 331 331 bull Fax +420 494 331 198
Orders by e-mail objcastoloviceisoverczCost-free information line800 ISOVER (800 476 837)
wwwisovercze-mail infoisovercz
Division IsoverSaint-Gobain Construction Products CZ asMasarykova 197 bull 517 50 Častolovice bull Czech Republic
By using the innovative ISOVER insulating materials you simply ensure a better
climate in our environment as well as in your home You reduce the consumption
of energy while at the same time increasing your well-being and comfort Can
there be a more convincing argument
Build on ISOVER Show responsibility for our environment and for yourself
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