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Planning and Installation InstructionsFRIATHERM® rigidThe Hygienic Drinking Water System
03/2006
n Drinking Water FRIATHERM® rigid
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PIPE SYSTEMS DRINKING WATER
FRIATHERM® rigid – The Hygienic Drinking Water System
Planning and dimensioning systems and plants require the adherence to applicable standards, guidelines and country-specific rules. The planning and installation explanations provided in this documentation constitute product specificationssupplementing these general installation directions.
With its further test certificates and approvals, the FRIATHERM® rigid drinking water system offers additional safetyfeatures.
Our liability outside the concluded contract is based on the statutory provisions as set forth in the German ProductLiability Act. Additionally, we have entered into agreements on liability assumption with the German CentralAssociation for Sanitary, Heating and Air-conditioning Systems (Zentralverband Sanitär-, Heizung- und Klimatechnik,ZVSHK), the Austrian Association of Plumbers (Österreichischer Installateurverband), as well as the SwissAssociation of Plumbers (Schweizerischer Installateurverband). To members of these associations, the abovementioned agreements grant the assertion of direct claims against our company, in case a damage occurs.
However, our assumption of liability preconditions in each individual case
- that all relevant acknowledged technical directions and- all existing applicable technical rules and local provisions have been observed; further- that our planning and installation instructions have been complied with, as well as- that product-specific tools and appropriate materials have been applied.
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FRIATHERM® rigid – The Hygienic Drinking Water System
ContentsPage
General
Installation Example and Reference 4
Description of the System 5 - 7
Product Range 8 - 10
Areas of Application 11
Installation
The Connection Technology 12 - 13
Transitions, Reducers, Flanges and Repair Couplings 14 - 15
Linear Expansion of Pipelines, Installation Basics 16 - 17
Linear Expansion and Shaft Installations, Installation Basics 18
Pipe Fixings, Mounting Instructions 19
Pipeline Guidance, Planning and Mounting Instructions 20
Pressure Test and Cleansing, Storage and Transportation 21
Planning
General Notes on Planning and Installation 22 - 23
- Equipotential bonding - Disinfection of mains - Connection to drinking water heaters- Sound insulation - Compensators - The German Potable Water Ordinance- Additional heating - Frost-proof installation - Hygiene, legionella pneumophila- Pipe-laying in endangered areas - Cleansing of pipes
Insulation of Pipelines, Planning and Installation Instructions 24
Fire Protection, Planning and Installation Instructions 25
Calculation of Planning and Mounting Periods, Requests For Bids 26 - 27
Dimensioning and Planning 28 - 29
Further Information
Pressure Test Record Form 30
Fax Back – Further Useful Equipment 31
- Pressure test forms - Expansion slide rule- RFB texts - Z Dimensions- Test certificates
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PIPE SYSTEMS DRINKING WATER
Installation Example and Reference
Basement drinking waterinstallation for hot andcold water based onFRIATHERM® rigid
User safety
(1) Gap-free connections(2) Material-conclusive connection technology(3) Corrosion-resistant
Planning safety
(1) For all types of drinking water – no exception(2) Compliance with the German Potable Water Ordinance(3) Consistent laying of dimensions ranging from 16 mm up to 90 mm
Installation safety
(1) Tool-free connections(2) Fixing distances meet practical needs(3) Pipe trays for small size ranges
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Description of the System
The hygienic drinking water systemFRIATHERM® rigid is the universal drinking water solution for hot and cold water systems. The system is made of aconsistent corrosion-free material for pipes and fittings. The system has been approved by the German Association ofGas and Water Experts (DVGW, Deutscher Verein des Gas- und Wasserfaches e.V.) and complies with therequirements for hygienic application as laid down in DVGW Worksheet W 270. As required in the German Potable WaterOrdinance, the transitions are tin-coated.
Material-conclusive press-fit welding joints constitute the standard connection providing for gap - free interlinkingpreventing the creation of dead water zones.
Areas of application:
- Residential buildings
- Hospitals
- Office buildings
- New constructions
- Renovations andreconstructions
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PIPE SYSTEMS DRINKING WATER
Installation Material
PipesPipes in dimensions d 16 upto 90 mm made of corrosionresistant high-gradeFRIAPLAST 110-65 plasticaccording to DIN 8079/8080.
FittingsFittings and transitions indimensions d 16 up to 90 mmmade of corrosion- resistanthigh-grade plastic or brass, tin-coated or gunmetal.
ConnectionsConical press-fit welding jointsare applied to interconnectfittings and pipes. Our speciallydesigned ”Component+” solventcement serves as connectiveagent allowing for homogeneousmaterial -conclusive connectionswithout dead water zones.
Type
rigid
d[mm]
s[mm]
di[mm]
DN* PN/SDR
* according to DIN 1988-3
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Adjustment and installation of the FRIATHERM® system does not require the inclusion of separate energy.
Installation Tools
DeburringUse reamers depending on the relevant dimensions.
Area of application:
- Basement- Riser d 20 to 90 mm inside reamer
Further equipmentUse bending pliers to bend mounting rails and toprovide for universal distances and connections tothe building.
Pipe cuttingPipes are generally cut by means of a roller pipe cutter.Only use roller pipe cutters suitable for plastic pipes.
- Basement- Riser d 20 to 63 mm outside chamfering tool
- Storeys d 16 to 25 mm inside and outsidechamfering tool
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PIPE SYSTEMS DRINKING WATER
Product Range
Pipe, FRIATHERM® rigid, smooth lengthsDN
121520253240506580
d
162025324050637590
Lengthin m
333355555
Ref. No.
55 00 0455 00 0655 00 0855 00 1155 00 1355 00 1555 00 1755 00 1955 00 21
Socketd
162025324050637590
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.016/13.616/13.6
Ref. No.
55 01 0455 01 0655 01 0855 01 1155 01 1355 01 1555 01 1755 01 1955 01 21
Elbow, 90°d
162025324050637590
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.016/13.616/13.6
Ref. No.
55 07 0455 07 0655 07 0855 07 1155 07 1355 07 1555 07 1755 07 1955 07 21
Street elbow, 90°d
16202532405063
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.0
Ref. No.
55 29 0455 29 0655 29 0855 29 1055 29 1155 29 1255 29 13
Street elbow, 45°d
16202532405063
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.0
Ref. No.
55 28 0455 28 0655 28 0855 28 0955 28 1055 28 1155 28 12
T-piece, 90°d
162025324050637590
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.016/13.616/13.6
Ref. No.
55 14 0455 14 0655 14 0855 14 1155 14 1355 14 1555 14 1755 14 1955 14 21
T-piece, 90°, reducedd
20/16/1620/16/2025/16/2525/20/2532/20/3232/25/3240/20/4050/25/5063/32/6375/40/7590/50/90
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.025/9.025/9.016/13.616/13.6
Ref. No.
55 14 7455 14 7255 14 7655 14 7755 14 7855 14 7955 14 8055 14 8255 14 8455 14 8655 14 88
Reducerd
20/1625/1625/2032/2032/2540/2540/32
R 50/2550/3250/40
R 63/3263/4063/50
R 75/4075/50
75/63R 90/50
90/6390/75
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.025/9.025/9.025/9.025/9.025/9.025/9.016/13.616/13.616/13.616/13.616/13.616/13.6
Ref. No.
55 02 7455 01 7855 02 7855 03 7955 03 7855 03 8055 04 7955 03 8755 03 8155 05 7955 03 8855 03 8255 06 7955 03 8355 03 8455 03 8555 03 8955 03 9055 03 86Elbow, 45°
d
162025324050637590
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.016/13.616/13.6
Ref. No.
55 06 0455 06 0655 06 0855 06 1155 06 1355 06 1555 06 1755 06 1955 06 21
Manifold T-piecefor the construction of horizontal pipework
d
25/20/25
PN/SDR
25/9.0
Ref. No.
55 14 90
End cap(end caps of dimensions 75 and 90 are fitted by way of backing rings and blankflanges)
d
16202532405063
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.0
Ref. No.
55 01 5455 01 5655 01 5855 01 6155 01 6355 01 6555 01 67
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Product Range
Fitting connector bonding nipple, union nut and flat gasket
d
16 x ½” BSP 20 x ¾” BSP 25 x 1” BSP 32 x 1¼” BSP
PN/SDR
25/9.025/9.025/9.025/9.0
Ref. No.
55 47 0555 47 0755 47 0955 47 11
Fitting connector bonding sleeve, union nut and flat gasket
d
16 x ¾” BSP 20 x 1” BSP 25 x 1¼” BSP 32 x 1½” BSP 40 x 2” BSP 50 x 2¼” BSP 63 x 2¾” BSP
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.0
Ref. No.
55 43 0555 43 0755 43 0955 43 1155 43 1355 43 1555 43 17
Union coupling, external thread, flat gasket
d
16 x R½” BSP 20 x R½” BSP 25 x R¾” BSP 32 x R1” BSP 40 x R1¼” BSP 50 x R1½” BSP 63 x R2” BSP
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.0
Ref. No.
55 44 0555 44 0755 44 0955 44 1155 44 1355 44 1555 44 17
Union coupling, internal thread, flat gasket
d
16 x R½” BSP 20 x R½” BSP 25 x R¾” BSP 32 x R1” BSP 40 x R1¼” BSP 50 x R1½” BSP 63 x R2” BSP
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.0
Ref. No.
55 44 0455 44 0655 44 0855 44 1055 44 1255 44 1455 44 16
Flange with backing ring and bonding sleeve
d
202532405063
R 637590
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.025/9.0
16/13.616/13.6
Ref. No.
55 46 1055 46 1255 46 1455 46 1655 46 1855 46 2155 46 1955 46 2255 46 24
Type
Flat gasketFlat gasketFlat gasketFlat gasketFlat gasketFlat gasket
O-ringFlat gasketFlat gasket
Transition, external thread, short, with bonding connectiond
16 x R½” BSP 20 x R½” BSP 20 x R¾” BSP 25 x R½” BSP 25 x R¾” BSP 32 x R1” BSP
PN/SDR
25/9.025/9.025/9.025/9.025/9.025/9.0
Ref. No.
55 40 4255 40 5255 40 5655 40 6455 40 6255 40 72
Transition, internal thread, short, with bonding connection
d
16 x R½” BSP 20 x R½” BSP 20 x R¾” BSP 25 x R¾” BSP 32 x R1” BSP
PN/SDR
25/9.025/9.025/9.025/9.025/9.0
Ref. No.
55 40 1255 40 1755 40 2055 40 2255 40 27
Composite elbow, external thread, short, with bonding connection,e.g. for connecting concealed fittings
d
20 x R½” BSP
PN/SDR
25/9.0
Ref. No.
55 34 07
Wall plate with bonding connection
d
16 x R½” BSP 20 x R½” BSP 25 x R¾” BSP
PN/SDR
25/9.025/9.025/9.0
Ref. No.
55 04 0655 04 0755 04 08
Composite elbow, internal thread, long, with bonding connection,installation with securing flange and locknut for Ref. No. 55 31 73 /55 31 74
d
20 x R½” BSP
PN/SDR
25/9.0
Ref. No.
55 05 17
Transition, internal thread, long, with bonding connection,installation with securing flange and locknut for Ref. No. 55 31 73 /55 31 74
d
20 x R½” BSP
PN/SDR
25/9.0
Ref. No.
55 40 15
Composite T-piece, internal thread, long, with bonding connection,installation with securing flange and locknut for Ref. No. 55 31 73 /55 31 74
d
20 x R½” BSP
PN/SDR
25/9.0
Ref. No.
55 24 07
Securing flange with anti-rotation anchors and structure-borne noisedecoupling, for long transitions
Ref. No.
55 31 51
d
1620
PN/SDR
25/9.025/9.0
Ref. No.
55 26 0455 26 06
Bridging piece
Locknut with plain washer and rubber washer for long transitions
d
R¾” BSP
Ref. No.
55 31 50
Pipe tray, galvanised
d
16202532
Lengthin m
3333
Ref. No.
55 50 0455 50 0655 50 0855 50 11
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PIPE SYSTEMS DRINKING WATER
d
16202532405063
Ref. No.
55 51 0455 51 0655 51 0855 51 1155 51 1355 51 1555 51 17
Lengthin mm1000100010001000100010001000
da
5660657280
100126
d
637590
Ref. No.
55 51 2755 51 2955 51 31
Type
with swelling materialwith swelling materialwith swelling material
da
126
- Accessories -
Range of Valves, Fixing and Processing Materials, Tools
Threaded repair coupler with clamping ring connection
d
16202532
PN/SDR
25/9.025/9.025/9.025/9.0
Ref. No.
55 40 7555 40 7655 40 7755 40 78
Mounting rail galvanised steel,for installing FRIATHERM® rigid wall plates
Dim.in mm259710
Type
MultipleMultiple
Ref. No.
55 30 2755 31 76
Mounting rail galvanised steel,galvanised steel, for installing concealed valves and long transitions
Dim.in mm510710
Type
SingleMultiple
Ref. No.
55 31 7355 31 74
Adhesive „Component +“Contents
100 ml400 ml
Ref. No.
55 71 7055 73 30
Spray bottle with leak detection agent(refillable)
Contents
1 litre
Ref. No.
55 73 40
- Tools -
AB
CDE
Ref. No.
55 65 15
55 72 9055 65 1255 65 1355 65 14
Designation
Bending pliers for mounting railsInside and outside chamfering tool for FRIATHERM®
rigid pipes, d 16 - 25 mmChamfering tool for FRIATHERM® rigid pipes, d 16 - 63 mmReamer for FRIATHERM® rigid, d 16 - 90 mmRoller pipe cutter for FRIATHERM® rigid, d 16 - 67 mm
FRIATHERM® rigid tools
Tool box for FRIATHERM® rigidType
Tool box withA, B, C, D, E
Ref. No.
55 65 10
Fire-protection equipment for ceiling and wall ducts reali-sed with FRIATHERM® rigid pipes, building material class A1
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Areas of Application
Sanitary installations according to DIN 1988 for hot and cold water systemsThe gap-free connections of the FRIATHERM® rigid system, its approvals as well as its conformity certificates ofmaterial compliance according to DVGW Worksheet W 270 entitled Multiplication of Micro-organisms on MaterialsApplied in the Drinking Water Sector – Examination and Evaluation warrant the compliance with the hygienicrequirements as specified in the German Drinking Water Ordinance.
Special areas of application:- Hospitals- Office buildings- Day-care centres for children- Schools- New construction, renewals and reconstructions
FRIATHERM® rigid’s hygienic material and its compatibility withother installation materials provide solutions for particularlycritical structural tasks.
Areas of application:Types of buildings
- Residential buildings- Hospitals- Office buildings
Further areas of application: - Treated and untreated types of drinking water- Rainwater systems
Other areas of application upon request and following writtenapproval by FRIATEC AG (compressed air, heating, antifreezeagents)
Specifications: Pipe roughness K = 0.007 mmThermal conductivity = 0.16 W/mKWater from 0 °C up to 90 °CCoefficient of linear expansion = 0.07 mm/mK
Brass or gunmetalBrass; surfaces coming into contact with water are tinnedaccording to the German Drinking Water Ordinance
Material:
Fittings and pipes
Transitions
FRIAPLAST 110-65 PVC-C high-grade plasticaccording to DIN 8079/8080
Dimensionsd 16 up to d 20 mm
- Riser- Storeys- Distribution
Dimensionsd 32 up to d 50 mm
- Riser- Distribution
Dimensionsd 50 up to d 90
- Riser- Distribution
- 12 -
PIPE SYSTEMS DRINKING WATER
The Connection Technology
Establishing a FRIATHERM® rigid press-fit welding jointMaking a FRIATHERM® rigid connection only requires a few steps.The jointing process does not require separate energy.
Pipe cutting Deburring Applying FRIATHERM®
“Component+”Jointing and aligning
Assembly and safety instructionsDeburr pipes of all dimensions with the aid of the relevant tools available for the system.Conduct visual inspection to determine whether pipes and fittings are clean; if need be, clean with oil-free cloth.
Optimum processing temperature is above 0 °C.In case of lower temperatures, briefly warm up pipes and fittings.
For safety reasons, mark plug-in depth for subsequent review.Only approved elements and components warrant correct connections.
Allow for some waiting period after plugging in elements and/or components.At ambient temperature, pipes may be exposed to a maximum water pressure level of 6 bar after 30 minutes.Pipes and fittings can be pressurised after 60 minutes.In case of temperatures lower than ambient temperature extend the required time span to conduct the pressure test(15 bar according to pressure record – see Schedule), i.e. allow for a waiting period of 120 minutes at temperaturesranging between 10 °C and 20 °C and for 240 minutes at temperatures between 0 °C and -10 °C.
The adhesive may be used within one year as from its date of manufacture (see date indicated on bottom).After the expiry of this date (i.e. indicated date + 1 year) the adhesive should no longer be used.
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The Connection Technology
Safety features of the connection
The conic socket and the system adhesive create an inseparable material-conclusive connection providing for aconsistent hygienic connection free of any gaps between pipes and fittings.
All materials used are in keeping with KTW (German Association for Plastic Materials in Drinking Water) approvalsconstituting a basic requirement for obtaining DVGW certification of hygienic conformity.
FRIATHERM®
„Component +“ adhesive
Zone of the FRIATHERM®
cold welding
Homogeneous fusion of materialsdue to cold welding
Surface for bonding enlarged byup to 36% compared to DIN 8036
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PIPE SYSTEMS DRINKING WATER
Transitions and Reducers
Transitions show bonding areas and should only be jointedwith the relevant pipes in keeping with the standardconnection.
After deburring and applying the adhesive, insert the pipeend into the transition. Only bond pipes in transitions.
Do not use street fittings, as full insertion depth may not bewarranted for constructional reasons.
ReducersA clearly structured product range allows for fewer expenses in terms of warehousing and ordering. This objective isobtained by the unique possibility of flexibly using reducers integrated in the system. This way, a T-piece can beadjusted to various installation situations.
Mount wall plates (ceiling elbows) by anchoring them.For such purpose, mounting rails L = 259 mm(Ref. No. 55 30 27) and L = 710 mm (Ref. No. 55 31 76)are available.
For sound insulation purposes, conventional soundcontrol equipment can be used.
Example: Reducers allow for any combination ofT-pieces and thus for adjusting them tothe relevant structural situation.
Reduced T-piece
Reducers can be combined with each other and do notrequire pipe pieces placed in-between. Reductions do notchange the dimensions of T-pieces.
Reducer50/32
Reducer75/50
T-pieced 75
Reducer50/32
Reducer75/50
T-pieced 75
TransitionsTransitions and flanges are available for connections to other threaded parts of any dimension.
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1
2
3
4
d
FT-rigid 16 --> FT-uni 16 FT-rigid 20 --> FT-uni 20 FT-rigid 25 --> FT-uni 25
Ref. No.
54 43 1554 43 2854 43 37
FT-rigid 16 --> FT-multi 16 FT-rigid 20 --> FT-multi 20 FT-rigid 25 --> FT-multi 25
Ref. No.
53 43 1553 43 2853 43 37
d
FRIATHERM uni®
FRIATHERM multi®
Flanges and Repair Couplings
Transition to other systemsThreaded transitions, unions, flanges and connectors provide for the transition to other systems.
Flange connectionsFlange connections on fittings, equipment and othersystems can be realised by means of system flanges(1 standard flange, backing ring with bonding sleeve, flatgasket). Use the relevant threaded flange as counter-flange.
Repair couplings
Repair couplings are available for pipeline connectionsof d 16 up to d 32 mm.For installation follow steps 1 to 4 below:
Piped [mm]
Screw-holecircle
No. ofscrews
Screw size
Cut to size and chamfer rigid FRIATHERM® pipe,then push over O-ring as far as it will go.
DN
Push up clamping ring.
Hand-tighten union nut and draw it up with tool(max. 1 turn = 360°).
System TransitionsSuitable direct-fixing adapters are available for transitionsfrom FRIATHERM® rigid to FRIATHERM multi® andFRIATHERM uni®. FRIATHERM multi® and FRIATHERMuni® stand for pipe systems conceived for drinking waterand heating grids.
FRIATHERM multi ® is composed of three dimensionsranging from d 16 up to d 25. Exclusively the silver-coloured pipe and the black push-fit fitting are used torealise the „push-fit“ system connection.The connection process does not require any tooling. Incombination with its dimensionally stable multi-layer pipe,the particular strength of the installations system includesthe speedy installation of horizontal connections and itsassembly under confined conditions.
FRIATHERM uni ® is composed of white multi-layer pipesand metal fittings. These components are pressed with theaid of the solid stainless steel bushes of dimensions d 16up to d 40.
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PIPE SYSTEMS DRINKING WATER
Linear Expansion of Pipelines, Installation Basics
Generally speaking, all pipes are subject to linear expansion due to thermal influence (thermal expansion). This linearexpansion is, as a rule, set off by means of bending legs (change of direction) or compensators. Compensators needregular maintenance. Bending legs, on the other hand, are maintenance- free elements and mainly depend on themounting conditions along the relevant installation place.
FRIATHERM® rigid pipes show a favourable linear expansion coefficient of 0.07 mm/mK.
The use bending legs mainly depends on the change of direction of the pipeline. If natural changes of direction arenot encountered along pipeline, use expansion loop.
Temperature diff. in K
Thermo- linear expansion ofFRIATHERM® rigid in mm
Pipe length in m
Calculation example oflinear expansion
Thermalexpansion in
mm
FRIATHERM® rigid dimensions d [mm]
Bending leg in mm
Calculation example oflength of bending leg
Material constant c = 34
LP = sliding points(slide clamp)
FP = fixed points(fixed point clamp)
L = length of expansiona = length of bending leg
- 17 -
Immediate Determination of Linear Expansion of Pipelines
Tem
per
atu
re v
aria
tio
n ΔΔΔΔ Δ
T [
K]
Pipe lengths [m]
Linear expansion
Dimension d [mm]
Slide rule
The FRIATEC slide rule can be usedfor dimensioning bending legs andexpansion loops.
Available at FRIATEC AG,Fax No.: +49 621 486-15 99,or contact our regional salesrepresentative(s).
Len
gth
of
ben
din
g le
g a
[cm
]
- 18 -
PIPE SYSTEMS DRINKING WATER
Linear Expansion and Shaft Installations, Installation Basics
Space-saving expansion loops in a shaft forhot water pipelines.
The fixed points guide thermo- linear expansion.Mounting fixed points in the centre of the riser isadvantageous. It is important that the outlet isequipped with an appropriate bending leg.
If insulation is projected to provide for the requiredexpansion, make sure that the insulation materialoffers sufficient thickness and elasticity.
When guiding pipes through shaft walls, consider the re-levant diameters and the arrangement of the penetrationopenings to avoid any obstruction of the movement of thebending sides.
LP = sliding points (slide clamp)FP = fixed points (fixed point clamp)L = length of expansiona = length of bending leg
...with form parts ...with half-trays
Arrangement of fixed points...
Arrangement of sliding points
a = length of bending leg
- 19 -
Pipe Fixings, Mounting Instructions
Pipe fixings form a substantial part of mounting work. Along uninterrupted FRIATHERM® rigid hot water pipelines,the fixing distance can be reduced by using pipe trays L = 3.00 m.
Only use clamps as pipe fixings suitable for plastic pipes.Arrange clamps in keeping with general installationinstructions.Dimension
d in mm
Maximum fixing distance (FD)FD in m
horizontalFD in m
horizontalwith pipe tray
FD in mvertical
Do not restrict movement of pipes within the bendingleg by means of clamps, pipe trays or other structuralelements.
Use expansion loops along pipelines lacking naturalbending legs.
Using pipe trays allows for extending fixing distances. Ifthe pipeline is directly connected with the clamps, furtherfixings are not required, as the pipe tray fits the pipeperfectly.
Using a pipe tray does not obstruct the attachment of theinsulation to the pipeline. Do not use pipe trays withinexpansion loops or bending legs to ensure rebounding ofthe pipeline.
Length of expansion L Length of expansion L
Ben
ding
leg
aLength of expansion L
Ben
ding
leg
a
- 20 -
PIPE SYSTEMS DRINKING WATER
Storey-to-storey transition
Fittings
Pipeline Guidance, Planning and Mounting Instructions
BasementThe marking along the pipes is a helpful orientationfor mounting long pipeline sections. Together with themarkings on the fittings it is possible to align form partsalong long pipeline sections.
RiserA d 25 /20 /25 manifold T-piece is available for speedymounting.
DistributionThe FRIATHERM® rigid system allows for the simple andsafe mounting of drainable distribution pipes.This maintenance option should be selected in particularin areas susceptible to stagnation (e.g. hospitals, schoolsetc.).
Connections
- FRIAPLAN®
- FRIABLOC®
- Flushing cisterns
- 21 -
Pressure test with water
Conduct pressure tests on drinking water installations in keeping with DIN 1988-2. If possible, arrange pressuregauges offering a reading accuracy of 0.1 bar at the lowest point. Fill up the completed and yet not concealedpipeline system with filtered water. Test the pipeline in line with DIN 1988-2 for plastic pipes. Insulation of formparts and filling of gaps should be effected after the completion of the pressure test.
Please also see the form entitled ”Pressure Test Record” annexed hereto.
Pressure test with compressed air
The test may be carried out with oil-free inert gases in keeping with the ZVSHK Worksheet entitled ”Conductionof Pressure Tests With Compressed Air or Inert Gases for Potable Water Installations According to DVGW 1988(TRWI, Technical Regulations for Drinking Water Installations)”.
The relevant test is subdivided into a leakage detection test up to 110 mbar and into a stability test for pipes up toDN 50 at a maximum pressure gauge of 3 bar and for pipe dimensions ranging between DN 50 and DN 100 at amaximum pressure gauge of 1 bar. For safety reasons, higher pressure levels may not be applied.
Use the available leakage detection spray (Ref. No. 55 73 40) or a solution of hard soap (5%) to check connections.Using inappropriate leakage detection sprays can cause stress cracks.
Pipe flushing
In principle, drinking water pipes need cleansing. For hygienic reasons, i.e. due to the corrosion-resistant plasticmaterial, the conduction of a single standard flushing regime is sufficient for the FRIATHERM® pipeline system.For corrosion- related reasons, apply air -water mixtures only on systems composed of metal pipes.
Storage and Transportation
FRIATHERM® pipes can be stored at any temperature. Keep dry unwrapped package units. When storing andtransporting FRIATHERM® pipes make sure that the pipes always rest lengthways. In general, avoid any bendingof the pipes.
Extreme resistance is characteristic of FRIATHERM® pipes. Nevertheless, they may be damaged due to mechanicalimpact. In consequence, pipes and form parts should be transported in their original packaging.
Protect FRIATHERM® pipes and form parts against direct glare of the sun. When installing FRIATHERM®
components, it is sufficient to apply protective coatings (solvent-free water-based paints) or insulation materialagainst the effects of direct insolation.
Pressure Test and Cleansing, Storage and Transportation
- 22 -
PIPE SYSTEMS DRINKING WATER
General Notes on Planning and Installation Instructions
Equipotential bonding
FRIATHERM® rigid is a non-conductive pipeline system and may thus not be included in the equipotential bonding.In case of modifications, reconstructions or partial restructuring measures on existing systems inform the client aboutthe requirement that an approved electrician must check the functionality of the electric protection and earthingsystems during the performance of these measures. That applies to all installations, as the majority of connectionsand equipment components can switch off integrated protective functions.
Sound insulation
On pipeline systems, noise control is achieved by using insulation materials and clamps with linings. Ceiling ducts aresound-insulated owing to the system’s approved fire -protection measures. Insulate the non-positive connections towalls with the aid of conventional sound insulators. Standard DIN 4109 specifies the application of fittings complyingwith fitting group 1 (L
FG ≤ 20 dB (A).
Additional heating
The FRIATHERM® rigid system allows for the integration of an additional heating grid. Fix heating bands in keepingwith the instructions given by the relevant manufacturer of heating bands. Heating bands and their insulation mustbe suitable for plastic pipes. The maximum surface temperature of a heating band may not exceed 70 °C.When using heating bands, check in particular their application in terms of collective fuse (check valve) and shut-offoptions to avoid any impermissible pressure increase within the pipeline grid. Shut -off measures in combination withband-based heating leads to uncontrolled pressure levels within the pipeline system.
Pipe-laying in endangered areas
Thanks to its high-grade plastic material, FRIATHERM® rigid pipes and fittings are resistant to the majority of externalinfluences. However, exposure to aggressive gases or humidity may cause unwelcome effects. Consequently, alwayskeep highly -creeping chemical substances (such as disinfectants for external application) away from plastic pipes.
Grease and oil products or leakage detection sprays can also contain substances possibly damaging plasticpipelines.
Disinfection of pipeline grids
FRIATHERM® rigid pipeline systems meet the requirements for both thermal and chemical disinfection. Provide forchemical disinfection measures based on approved methods and disinfectants in particular in buildings forming apossible source of danger. When applying disinfectants, obtain a written approval from FRIATEC AG for safetyreasons.
Compensators
Compensators can be used in combination with FRIATHERM® rigid components. Their integration calls for additionalinstallation work. Follow the mounting instructions for the relevant types of compensators. Only use compensatorssuitable for plastic pipes.
Frost -proof installation
Install FRIATHERM® rigid pipes and fittings so as to prevent any frost-related damage. Fully empty the pipelines ortake appropriate measures to protect the mains against freezing.
Flushing of pipes
Standard DIN 1988-2 requires that drinking water pipes must be cleansed by means of an air -water mixture forcorrosion-related reasons. The FRIATHERM® rigid product range is based on a corrosion-resistant material and,owing to its conception and design, offers gap-free connections. Consequently, simple flushing is sufficient.
Connection to drinking water heaters
Warm water heaters can be connected directly, if the safety equipment of the relevant warm water heater does notallow for temperatures exceeding 95 °C (short-time exposure) in keeping with the current standards DIN 1988 andDIN VDE 0700 (German Association of Electrical Engineers, Verband Deutscher Elektrotechniker) as well aspressure levels beyond 10 bar.
- 23 -
The German Potable Water Ordinance
The German Potable Water Ordinance has for its purpose to warrant towards users uninterrupted and nutritionallyacceptable drinking water supply services. As a rule, avoid stagnant water.
Determine whether the pipeline is suitable for disinfection measures. Such measures include thermal and chemicaldisinfection. When opting for chemical disinfection, install the pipeline grid so as to allow for sectional drainage of thesystem.
In endangered buildings showing longer stagnation periods due to operational reasons, it is imperative to ensure thatthe pipes can be drained. That includes storey distributors located close to the rising main and needing shutting offand draining in case of longer standstills.
With regard to public buildings, the competent public health department assumes drinking water supervision andexamination tasks. In consequence, unrestricted operability of the pipeline grid for all types of water is of utmostimportance as to the used materials.
Otherwise, restrictions related to pipeline elements could lead to complaints in case of changes in the water qualitycropping up during operation.
All components of the FRIATHERM® rigid drinking water system comply with KTW guidelines. Transitions are tinnedand can thus be installed without limitation for all drinking water qualities. Additionally, the fitting and pipe material hasbeen tested in keeping with DVGW Worksheet W 270. The test certificate confirms that the FRIATHERM® rigid pipeand fitting material are, from the microbiological point of view, suitable for application in the drinking water sector.
Hygiene, legionella pneumophila
Measures aiming at reducing the growth of legionella pneumophila (causing legionaries’ disease) are describedin various publications and DVGW Worksheets W 551 (Potable Water Heating and Pipeline Systems; TechnicalMeasures to Reduce the Growth of Legionella Pneumophila) and W 552 (Potable Water Heating and PipelineSystems; Technical Measures to Reduce the Growth of Legionella Pneumophila; Technical Restructuring andOperation).
Thermal and chemical disinfection as well as a minimum of stagnation zones are essential for the installedpipeline system.
Due to its design-immanent structure, standard FRIATHERM® rigid connections are gap- free. The chemicaldisinfection options are dependent on approved measures. In case of chemical disinfection measures verify(hotline) the resistance of the system in combination with the selected method and obtain a confirmation inwriting.
General Notes on Planning and Installation
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PIPE SYSTEMS DRINKING WATER
Insulation of Pipelines, Planning and Installation Instructions
Insulation of cold water pipesInsulation of cold water pipes is based on DIN 1988-2 toavoid heating and condensation. The standard values applyto a thermal conductivity of λ = 0.040 W/(mK). Theseminimum insulation values must be converted for insulatingmaterials of different thermal conductivity. The insulatingmaterial selected must have an approval for plastic pipes.
Insulation of hot water pipesHot water pipes must be insulated in line with Annex 5 ofthe German Energy Conservation Ordinance (EnEV). Incontrast to the 1994 Heating Installations Ordinance, it isnow the inside diameter which is of relevance when deter-mining the thickness of the insulating material according tothe Energy Conservation Ordinance.
-not concealed, in non-heated room(e.g. basement)
-not concealed, in heated room
-in duct, without hot water piping
-in duct, next to hot water piping
-in wall crevice, rising main
-in chase, next to hot water piping
-on concrete,alternatively, the pipe can also be laid in thesheath tube to prevent condensation
Thickness ofinsulating layer ofλ = 0.040 W/(mK)
Pipeline installation situation
Inside diameter up to 22 mm
Inside diameter exceeding 22 mm up to 35 mm
Inside diameter exceeding 35 mm up to100 mm
Inside diameter exceeding 100 mm
Pipes and fittings as stated in lines 1 to 4 in walland ceiling passages, in the intersection zone ofpipelines, at pipeline connection points, andcentral pipe network distributors
Pipes of central heating systems as stated inlines 1 to 4 which are installed in componentsbetween heated rooms of different users afterentry into force of this ordinance
Pipes as stated in line 6 in floor superstructures
20 mm
30 mm
equal to insidediameter
100 mm
1/2 of therequirements oflines 1 to 4
1/2 of therequirements oflines 1 to 4
6 mm
Minimum thicknessof insulating layer inrelation to a thermal
conductivity of0.035 W/(mK)
Type of pipe / fitting
To the extent pipelines of central heating systems as stated in lines 1 to 4are located in heated rooms or in components between heated rooms of auser and to the extent their heat release can be influenced by means ofnon-concealed shut-off equipment, there are no requirements for the mini-mum thickness of the insulating layer. That also applies to hot water pipesof a maximum inside diameter of 22 mm installed in residential buildingsand being neither integrated in the circulation cycle nor equipped withparallel electric heating.
As to materials of thermal conductivity other than 0.035 W/(mK), convert theminimum thickness of the insulating layers accordingly. For conversion andthermal conductivity of the insulating material, use calculation methods andvalues encompassing engineering standards.
The minimum thickness of the insulating layer according to Table 1 can bereduced for heat distribution and warm water pipelines, insofar as anequivalent limitation of heat release is also warranted according to otherrequirements for pipeline-insulating materials and in consideration of theinsulation efficiency of the pipes.
1
2
3
4
5
6
7
Line
Requirements for limiting heat release of heat distribution and hot waterpipelines as well as fittings (ad sect. 12 subsect. 5).
Table 1: Heat insulation of heat distribution and hot water pipelines as well asfittings
Thickness of insulating layer[0.035W/ (mK)]
Dimensiond [mm]
DN Inside diameterdi
Thickness ofinsulating material
4 mm
9 mm
4 mm
13 mm
4 mm
13 mm
4 mm
- 25 -
Fire Protection, Planning and Installation Instructions
Simple solutions for R 90 pipe passages through walls and ceilings are available for all pipe dimensions of the FRIATHERM®
rigid system. The solutions have been tested and approved.
Arrange the Conlit trays in the centre of the ceiling or wall passage and fix them by means of adhesive tape. Conlit shellwith or without aluminium coating can be used.
Mind the minimum distances between Conlit trays (see Figures 1 to 4). Usually, mounting pipe insulation results in thecreation of a gap between the pipes. Consequently, the minimum pipe distances listed below can be ignored in practice.Hence, the distance between the trays within the pipe passage can be selected at will for the tested FRIATHERM® rigidpipelines.
Conlit shellConlit shellConlit shellConlit shellConlit shellConlit shellConlit shell
Dimension d in mm
Ref. No. A Lmin.
Type FigureDimensions in mm
Wall duct R 90, Table 2
Ceiling duct R 90, Table 1
For greater dimensions, i.e. d 63 - d 90 mm, implement thesolutions by using swelling material in keeping with theapproval.
Dimensiond in mm
Ref. No. A Figure
Dimensions in mmL
min.s
Ceiling
Ceiling
Wall
Wall
Wall
See Table 3See Table 3
162025324050637590
55 51 0455 51 0655 51 0855 51 1155 51 1355 51 1555 51 1755 51 2955 51 31
5660657280100126
150150150150250250400
111111133
Conlit shellConlit shellConlit shellConlit shellConlit shellConlit shell
Dimensiond in mm
Ref. No. A Lmin.
Type FigureDimensions in mm
See Table 3See Table 3See Table 3
162025324050
637590
55 51 0455 51 0655 51 0855 51 1155 51 1355 51 15
55 51 2755 51 2955 51 31
5660657280
100
100100100100250250
222
222444
d 75
d 90
d 63
d 75
d 90
55 51 29
55 51 31
55 51 27
55 51 29
55 51 31
170
200
146
170
200
47,5
55,0
41,5
47,5
55,0
50
50
50
50
50
3
3
4
4
4
Figure 1
Figure 2
Figure 3 Figure 4
Insulation in keeping with EnEV(not included in delivery)
PE
Swelling material
Rock wool Meltingtemperature ≥ 1000 °C
All measures in mm.
Dimensions d 63-d 90 mm, Table 3
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PIPE SYSTEMS DRINKING WATER
Calculation of Planning and Mounting Periods
Mounting periodsMounting periods are empirical values. These standardvalues are expressed in man-minutes (one person perminute) and apply to the net mounting time required,including
- provision of materials and tools at the place of mounting- reading and transferring plans and pipeline guidance- preparing and laying pipes and fittings
The special tasks
- preparing the construction site- secondary work (knocking in etc.)- insulation work- cleansing/flushing and pressure test
are not included in the general mounting period.
Surcharge calculationDepending on the relevant laying method, a surcharge of50% to 80% may be assumed for wages incurring forfittings and connector pieces as well as for relatedmaterials. Add this surcharge to salary, wages and materialcosts.
This surcharge varies in keeping with the pipe guidance,the type and extent of the construction project as well asmounting/installation conditions and company-specificcircumstances. Consequently, recalculation of mountinginstallation costs and determination of project-relatedsurcharges constitute a sound and safe measure forspecifying the costs of further projects.
Dimension d [mm]Mounting period per m
16
20
25
32
40
50
63
min /mPipe
Pipe
Pipe
Pipe
Pipe
Pipe
Pipe
9
9
10
12
14
16
18
- 27 -
Requests For Bids
The request for bids (RFB) process can be implemented in the form of a differentiated or simplified RFB withsurcharges indicated in percent.
Complete RFB texts are available for differentiated RFB (for order form see Schedule).
Tenders can be invited for FRIATHERM® rigid for dimensions up to d 63 mm for simplified RFB in line with thesurcharge calculation.
RFB text for simplified RFBInstallation system with fittings and further equipment, suitable for hot and cold water pipes according to DIN 1988 upto an operating temperature of 90°C with DVGW approval.
Supply and laying of the FRIATHERM® rigid installation system, including all fixing and connecting parts, according toDIN 1988 and FRIATEC installation instructions, by using fittings with conical press-fit welding joints and adhesivesurfaces larger than specified in DIN 8063.
Implementation of the material-conclusive and gap-free standard connection with system-approved connectingmaterials. Pipe and fitting material must be in keeping with the requirements of DVGW Worksheet W 270.
Item Quantity Description Each Total
______ ______ m FRIATHERM® rigid pipe
as straight-length pipes for drinking watermains according to DIN 8080 and 8079
Dimension:
Material: __________ Wage: __________ ____________ ____________
Surcharge of ______ %on pipe items No. _________ to __________for fittings and connecting material(s) ____________ ____________
Total amount payable: ____________
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PIPE SYSTEMS DRINKING WATER
GeneralDimensioning of drinking water systems is based on the calculation basics as specified in DIN 1988-3: ”TechnicalRegulations for Drinking Water Installations (TRWI) – Determination of the Pipe Diameter – Technical Regulations ofthe DVGW (German Association of Gas and Water Experts)”.
Additionally, DVGW Worksheet W 553 ”Dimensioning of Circulation Systems in Central Drinking Water Heating Plants”needs to be taken into consideration when sizing circulation systems.
The product -specific data required for dimensioning can be gathered from the ensuing worksheets:
Dimensioning and Planning
Elbow 90°
Street elbow 90°
Elbow 45°
Street elbow 45°
Bend 90°
T-piece 90° A/Tr
T-piece 90° A/V
T-piece 90° G/Tr
T-piece 90° G/V
Reducer
Extension bend
Manifold outlet
ConditionDesignation ξξξξξ -value
a) as specified in DN 12 731-2 and DIN 8079 Pipe Identification 16 x 1.8 mm
Max. length of pipe [m]
max. number LV
do x s [mm]
di [mm]
Valves
FRIATHERM® rigid SDR 9.0
Determination of pipe widthaccording to load values (LV) and SVGW (Swiss Association of Gas and Water Experts)guideline (guiding principle) W 3d 92
Flow resistance caused by fittings
- 29 -
Dimensioning Table for Planning
16 x 2.0 a)DN 12
R inPa/m
v inm/s
20 x 2.3DN 15
R inPa/m
v inm/s
25 x 2.8DN 20
R inPa/m
v inm/s
32 x 3.6DN 25
R inPa/m
v inm/s
40 x 4.5DN 32
R inPa/m
v inm/s
50 x 5.6DN 40
R inPa/m
v inm/s
63 x 7.1DN 50
R inPa/m
v inm/s
75 x 5.6DN 65
R inPa/m
v inm/s
90 x 6.7DN 80
R inPa/m
v inm/s
FRIATHERM® rigid 16 - 63 mm SDR 9
FRIATHERM® rigid 75 - 90 mm SDR 13.6
Conversion: 1 Pa /m = 0.01 mbar /m
a) as specified in EN 12 731-2 and DIN 8079 Pipe Identification 16 x 1.8 mm
Pressure drop R for drinking water installations composed of FRIATHERM® rigid pipes
Volumetricflow Vs
in l/s
Absolute pipe roughness K = 0.007 mm
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PIPE SYSTEMS DRINKING WATER
Pressure Test Record Form
Name of project: _________________________________________________________________
_________________________________________________________________
_________________________________________________________________
Client represented by: _________________________________________________________________
Contractor/responsible expertRepresented by: _________________________________________________________________
Filling water was filtered and the pipeline system was fully vented.Permissible operating pressure totals P
perm = 10 bar/ ______ bar (if greater)
Water temperature ϑw
= __________°C
Ambient temperature ϑa
= __________°C
Dϑ = ϑa - ϑ
w= __________ K
Description of the installation:The FRIATHERM® rigid installation system was integrated in the above-mentioned construction project.
1. Pressurisation (test pressure, min. 15 bar)
Ptest
= Pperm
+ 5 bar = _________ bar
2. Preliminary test:(applies to small system components such as connection and distribution pipelines from brickwork units; also asmain pressure test)Total test period = 60 min
2.1 Restore Ptest
twice within 30 min. Interval: 10 min each
2.2 Maximum permissible pressure drop of 0.6 bar (0.1 bar per 5 min interval) within 30 min.
Pprel = Ptest - (≤) 0.6 bar = _________ bar (permissible)
Read pressure Pprel
= _________ bar Leaks have not been detected
3. Test period = 120 min
3.1 Max. permissible pressure drop of 0.2 bar
Pmin x
= Pprel
- (≤) 0.6 bar = _________ bar (permissible)
Read pressure = _________ bar
The pipelines are tight.
Place Date
(Client or client’s representative) (Contractor or contractor’s representative)
- 31 -
Fax Back – Further Useful Equipment
Slide rule
The FRIATEC slide rule may be used to dimensionbending legs and expansion loops.
Forms for water pressure tests
Forms for air pressure tests
Complete RFB texts
Test certificates (DVGW certification) upon request
Test certificates (fire protection) upon request
Z Dimensions tables
Expansion slide rule
Fax request +49 (0) 621/486-1902
Company: ____________________________________________
Contact person: ____________________________________________
Address ____________________________________________
Telephone ____________________________________________
Fax ____________________________________________
eMail ____________________________________________
Sales Team Germany: Phone. +49 6 21 486-1915 Fax. +49 6 21 486-1916
Property Projects Team: Phone. +49 6 21 486-1919 Fax. +49 6 21 486-2342
Export Team: Phone. +49 6 21 486-1910 Fax. +49 6 21 486-1876
Technical Support: Phone. +49 6 21 486-1914 Fax. +49 6 21 486-1902
Marketing Team / Training Team: Phone. +49 6 21 486-1767 Fax. +49 6 21 486-1599
E-Mail: [email protected]
FRIATEC AG website: www.friatec.de
Your direct line to FRIATECBuilding Services Division in Germany
FRIATEC Aktiengesellschaft Building Services DivisionSteinzeugstraße 50 · 68229 MannheimTel. +49 621 486-1914 · Fax +49 621 486-1599www.friatec.de · [email protected] 93
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