HOT PRESSED Information GRP SECTIONAL WATER TANKS · GRP sectional water tanks Technical data Information ... 15 Hot press moulded GRP corner section 16 Tank supported on a flat and

BALMORAL SECTIONAL TANKS

HOT PRESSEDGRP SECTIONALWATER TANKSwww.sectionaltanks.com

GRP sectionalwater tanks

Technical data

Information

WATER 8pp 0311:WATER 8pp 0605 25/2/11 16:33 Page 1

Balmoral Group

Balmoral Group Holdings Ltd is a privately owned businessheadquartered in Aberdeen, UK, and has been providingsolutions to the civil and environmental, building and energysectors since 1980.

The enterprise has been built upon research, development andtechnical innovation. It is this commitment to progress that hashelped the company achieve its status as a market leader in itschosen fields of operation.

The company has, for a number of years, successfullyoperated manufacturing processes at Balmoral Park which areapproved and strictly regulated by the Scottish EnvironmentProtection Agency under Part B of the EnvironmentalProtection Act 1990.

Balmoral Tanks Ltd, a division of Balmoral Group Holdings Ltd,is a leading European engineering design and manufacturingcompany.

As a result of significant investment in people and plant, thecompany produces what is believed to be the mostcomprehensive range of tank products available from a singlesource in the EU.

Civil engineering, wastewater treatment, drainage, fuel oilcontainment, bulk liquid and potable water storage sectors areall key sectors for the company.

Balmoral GRP sectional water tanks provide water storage incapacities of 1m3-1000m3 and are erected to heights of 4m in1m and 0.5m increments. With an unrivalled reputation forquality and service, Balmoral GRP sectional tanks can be pre-insulated and carry full WRAS and LPCB approvals.

Hot pressed steel tanks are designed and manufactured byBalmoral-owned Horseley Bridge Tanks. Established in 1880, itis the oldest tank manufacturing company in the world and thepioneer of bolted sectional water tanks.

Rotationally moulded tanks ranging from capacities of 500 to75,000 litres are currently produced, and it is this flexibilityand comprehensive product range that gives Balmoral Tanks itscompetitive advantage.

The vast majority of Balmoral Tanks’ products are accreditedand approved by numerous agencies: BBA; IAB; IP; LPCB; OFTECand WRAS to name but a few. In gaining these accreditationsBalmoral has raised the integrity and standards of the tankindustry around the world.

Visit balmoraltanks.com for a comprehensive overview of thecompany and its products.

Quality AssuranceBalmoral Tanks Ltd is certified to BS EN ISO 9001. The company’sQA manuals are available for examination by all clients.

Balmoral Park, thecompany’s 45 acre HQ

Balmoral Tanks


DesignThe design of each sectional tank panel is modelledusing FEA software. This allows fine detail to bethoroughly investigated and improved before proceedingto mouldmaking and production.

MaterialsAll materials used in the production and assembly ofBalmoral GRP tanks are rigorously tested for potablewater compatibility. This includes long term materialperformance and mechanical properties, non-metalliccomponents, adhesives, etc. Combined, these analysesform the basis of the company’s extensive QCprocedures.

Manufacturing processBalmoral sectional tank panels are hot press moulded inglass reinforced plastics (GRP) using isophthalicunsaturated polyester resins and electrical glassfibrereinforcement.

The panels are moulded at temperatures up to 150°Cunder strict quality control disciplines. The processresults in strong, consistent panels which are fully cured,dimensionally accurate with sharply defined profiles andsmooth surfaces on both faces.

Drilling and finishing of the panels is undertaken in apurpose built controlled area, where high technologyautomated drilling equipment is used to completeproduction to exacting tolerance levels.

Thermal insulationBalmoral Sectional Tanks usesexpanded polystyrene (EPS)materials in its thermallyinsulated panels. This ismade using a pentaneexpansion agent which is CFCand HCFC free and can berecycled by melting downand reforming.

Engineering innovation

Feature Benefit

Design Designed to BS EN 13280 (2001)

Automated manufacturing Consistent product offering dimensional stability

Automated finishing Provides high levels of accuracy

High grade materials Improved resistance to bacterial growth, increased water resistance, reduced risk of osmoticattack. Colour 00-A-05 to BS 5252

UV stabilised materials Suitable for global climatic conditions

100% opacity Prevents algae growth

Heavy duty cover Low maintenance, resists wind and snow loadings. BS 6399 Pt1 (1996)

Integrated insulation Provides U value of 0.6W/m2K. CFC and HCFC free. Suitable for water storage up to 38ºC

Exclusive sealant WRAS approved, provides optimum performance under varying climatic conditions

Bracing Designed to BS 6700:1997 to limit structure deformation

WRAS approved Tanks compliant to WRAS Section 0135, fittings compliant to Water regulation 16 (Byelaw 30) for tanks to 4m depth

QA Balmoral Group is certified to BS EN ISO 9001:2000

HCFC free insulation

UV stabilised skin covering themaximum surface area of panel

Mechanical property

Method of manufacture

Specific gravity

Tensile strength

Flexural strength

Flexural modulus

Impact strength

Barcol hardness

Shear strength

Glass content

Thermal expansion

Thermal conductivity

Overall heat transmission

Water absorption

Light transmission

Insulation thickness

Insulation cover

Performance value

Hot Press Moulded

1.8

110 Mpa

220 Mpa

12 Gpa

180 Kj/m2

90

107.8 Mpa

>30%

2.0 x 10-5/°C

0.15 Kcal/m hr°C

0.6 W/m2 K

< 0.1%

Zero

40mm EPS

ABS

The Balmoral range of sectional GRP tanks may be specified as either

externally flanged base (EFB) or internally flanged base (IFB). This

allows the use of either flat continuous foundations, close centre

beams, pier walls or bearer beams depending upon the type of base

required. The internally built tank (IBT) to be supported as standard on

an IFB foundation.

The EFB specification is fully self draining allowing ease of

maintenance and cleaning.

• Flexibility of panel sizes allows connections to be

agreed on site to suit actual tank location

• Modular design provides ease of transport and flexibility of

assembly on either a prepared flat and level concrete foundation,

support walls or bearer beams

• Panels are rigidly supported by a combination of stainless steel tie

rods internally and galvanised box sections externally

• Installation is carried out by Balmoral approved installers, fully

trained to provide total unified responsibility

Tank construction

EFB Externally flanged base,externally flanged sides

IFB Internally flanged base,externally flanged sides

IBT Internally flanged base,internally flanged sides

Clearance requirementsAll installations require a clearance of500mm above manway. A minimumclearance of 350mm is required above thetank to comply with water regulations.

Height up to 1m add 80mm for flanges

Height up to 1.5m add 80mm for flangesadd 80mm for galvanised box sectionsadd 50mm for tie rod brackets

Height from 2 to 4m add 80mm for flangesadd 60mm for galvanised box sectionsadd 50mm for tie rod brackets

= 210mm over the internal dimensions for each side



Box section

Tie rod bracket

Flange types

Flange detail

350mm minimum

Access tofloat valve

Access forinspection

500mm minimum

Option 1 - Flat foundationFor IFB and IBT tanks. Flat screen concretefoundation to be level and not vary more than2mm in any one metre, measured laterally ordiagonally.

Ground level

Internal spans 1000mm

150mm

500mmmin

Ground level

150mm

500mm centres

150mm

150mm

Option 2 - Close centre beamsIFB and IBT tanks may also be supported bysteel bearer beams.

Option 3 - Pier wallsFor EFB tanks allowing self drain. 1m centresrequired.

Base support

• IBT tanks to be tight to two adjacent walls only• 500mm required underneath the EFB tank for installation• Health and Technical Memorandum (HTM2027) stipulates self draining base for EFB tanks• Water regulations now state that where practicably possible, outlets should be taken from tank base, ie, EFB tank

External plan sizes


Brace wherenecessary forheavy guardsshaped to circle

Optional guards

6000

mm

max

.be

twee

nto

pof

tank

orpl

atfo

rms

900m

mm

ax.

2500

mm

from

grou

nd

Source: BS4211

2

4

3

5

6

7

89

101213

14

15

16

17

18

19

2015

11

1

Description

Fixed ladderTypical arrangement of a fixed ladderaccording to BS4211

1 Handrailing and supports

2 Screened air vent

3 Profiled heavy duty cover designed to BS 6399 Pt1 1996

4 A4 stainless steel internal fasteners and fixings

5 Float valve chamber (type AB and AF air gaps available)

6 Hinged or mechanically fixed man access

7 uPVC tubular roof support struts

8 GRP or stainless steel internal ladder

9 Connections supplied to customer requirements

10 Hot press moulded GRP panels BS EN 13280 (2001)

11 0.5 x 1m hot press moulded panel

12 316 Grade stainless steel internal tie rods

13 316 Grade stainless steel partition supports

14 Partition panels

15 Hot press moulded GRP corner section

16 Tank supported on a flat and level foundation or pier walls orbearer beams (pier walls shown)

17 Aluminium or galvanised steel external ladder

18 Galvanised or stainless steel external fasteners and fixings

19 Galvanised steel external bracing

20 WRAS approved BALSEAL sealing strip

This is not a typicaltank design. Panelsand components areshown for illustrationpurposes only.


Balmoral M100 and M100-B30 sectional tanks are Loss

Prevention Certification Board (LPCB) approved for

fire fighting sprinkler systems.

• Sprinkler tanks are to be approved by the LPCB to

LPS1276 standard and have a current listing in the

LPCB “red book live”

• Sprinkler systems must comply with

BS EN 12845:2004

• A type AB air gap is required unless connected to

a dedicated water supply

• External ladders must be compliant with BS4211

• Water level indication is required on sprinkler tanks

• The water in sprinkler tanks tends to be inactive

for long periods of time. Immersion heaters or

other means of preventing freezing may be

required

• In the event of a fire, large quantities of

continuous flow are required. If a vortex

inhibitor is fitted, the volume of water that can

be drawn from the tank is increased without

the inclusion of air or a reduction in the flow

rate. There are two main types of vortex

inhibitor: positive head and suction lift

Fire fighting sprinkler systems

X

Y

Low water level shall be taken as100mm above the top plate of anyvortex inhibitor to the inside baseof the tank

X

80mm


Y

IFB tank

EFB tank - suction lift vortex inhibitor

Nominalbore (mm)

X+100 (mm)minimum

Y (mm)minimum

80 (3”) 180 24

100 (4”) 200 30

150 (6”) 200 45

200 (8”) 250 60

250 (10”) 250 75

Y


X

80mm

EFB tank positive head vortex inhibitor

Nominalbore (mm)

X+100 (mm)minimum

Y (mm)minimum

80 (3”) 180 24

100 (4”) 200 30

150 (6”) 200 45

200 (8”) 250 60

250 (10”) 250 75

Nominalbore (mm)

X+100 (mm)minimum

Y (mm)minimum

80 (3”) 180 24

100 (4”) 200 30

150 (6”) 200 45

200 (8”) 250 60

250 (10”) 250 75

Type AB cowl


Recognising today’s requirement for rapid and accurate enquiry

responses, Balmoral Sectional Tanks has committed significant

investment to its IT resource. Coupled with this is a determination

to assist clients in their day-to-day tasks through the strategic use of

the company’s website as a working business tool.

Balmoral Sectional Tanks offers the following online services:

• Enquiry submission

• Current product information

• Technical detail

• Tank selection: Guidance on capacities and overall dimensions

• Documentation: Base drawings; operation and maintenance

manuals

• Industry standards and water regulations

A dedicated web team operates at the Aberdeen HQ on a

programme of continuous improvement. Visit

www.sectionaltanks.com to see how you can benefit by using our

electronic communication procedures.

Customer communication

Tank replacementBalmoral Sectional Tanks provides a complete tank replacement

service and has completed a significant number of full service

projects in recent years.

Acting as main contractors, Balmoral Sectional Tanks is supported by

in-house health and safety, design and contract management while

also providing guidance on ACOP L8 and CDM.

Turnkey project design and installation service

• Secondary base steel design and installation

• Tank design (ISO9001) and installation

• Tank removal and responsible disposal

• Establishment of temporary supply

• Pipework re-routing

• Updating/replacement of valve systems

• Health and Safety and CDM experience

• ACOP L8


GRP one-piece tanks

ModelInternal dimensions External dimensions

Length Width Height Length Width Height

Nominal volume

Litres Gallons

Balmoral one-piece tanks are manufactured to BS 13280:2001

standard using high quality glass reinforced polyester (GRP) resins.

The tanks comply with UK Water Supply Regulations 1999 and have

been tested and approved by WRAS.

The suffix “LP” denotes a low profile tank while “I” denotes an insulated product

BOP50-I 737 559 559 812 634 569 230 50

BOP70-I 910 610 585 985 685 595 320 70

BOP70LP-I 1524 457 457 1599 532 467 320 70

BOP100-I 965 686 686 1040 761 696 454 100

BOP100LP-I 1220 610 610 1295 685 625 454 100

BOP110LP-I 1000 1000 500 1075 1075 510 500 110

BOP125-I 965 762 787 1040 837 797 570 125

BOP150-I 1092 864 737 1167 939 747 681 150

BOP200-I 1168 889 889 1243 964 899 910 200

BOP220-I 1000 1000 1000 1075 1075 1010 1000 220

BOP220LP-I 2000 1000 500 2150 1150 510 1000 220

BOP250-I 1524 914 813 1674 1064 823 1140 250

BOP300-I 1827 914 813 1977 1064 823 1370 300

BOP350-I 1524 1143 914 1674 1293 924 1590 350

BOP400-I 1219 1219 1219 1369 1369 1279 1820 400

BOP500-I 1524 1219 1219 1674 1369 1279 2280 500

BOP500LP-I 1829 1219 1022 1979 1369 1082 2280 500

BOP600-I 1829 1219 1219 1979 1369 1279 2730 600

BOP800-I 2438 1219 1219 2588 1369 1279 3640 800

BOP1000-I 2438 1524 1219 2588 1674 1279 4550 1000

BALMORAL SECTIONAL TANKS LTD

Unit 2, Coomber Way Ind Est, Croydon, Surrey CR0 4TQ

Tel +44 (0)208 665 4100 Fax +44 (0)208 665 0200

Email [email protected]

www.sectionaltanks.com

GRP-0311-REV03


Documents

HOT PRESSED Information GRP SECTIONAL WATER TANKS · GRP sectional water tanks Technical data Information ... 15 Hot press moulded GRP corner section 16 Tank supported on a flat and