UK Designed and manufactured

Balmoral TanksGLOBALWATERSTORAGESOLUTIONS

www.balmoraltanks.com

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Balmoral TanksGLOBALWATERSTORAGESOLUTIONS

ContentsBalmoral Group 1

GRP Sectional water tanks 2

GRP One-piece tanks 9

Pressed steel sectional water tanks 10

Tank towers 18

Cylindrical sectional water tanks 20

Glass fused to steel (GFS) tanks 24

Fire fighting water tanks 30

Technical Services 36

Contracts and customer commitment 41

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Balmoral Tanks, Llantrisant Business Park, South Wales

1Balmoral Group andBalmoral TanksBalmoral 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 is 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, successfully operatedmanufacturing processes at Balmoral Park which are approvedand strictly regulated by the Scottish Environment ProtectionAgency under Part B of the Environmental Protection Act 1990.

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

As a result of signicant 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, re ghting and potable water storagesectors are all key sectors for the company.

Balmoral Park, the companys45 acre HQ

Balmoral GRP sectional water tanks provide water storage incapacities of 1m3-1000m3 and are erected to heights of 4m in 1mand 0.5m increments. With an unrivalled reputation for quality andservice, Balmoral GRP sectional tanks can be pre-insulated and carryfull WRAS and LPCB approvals.

Hot pressed steel tanks are designed and manufactured byBalmoral Tanks under the brand name of Horseley Bridge.Established in 1880, Horseley Bridge pioneered the use of boltedsectional water tanks.

Glass fused to steel (GFS) tanks form an integral part of thecompanys industry offering. These products are widely specifiedby the water, wastewater, desalination, food processing,agricultural, chemical, biogas, anaerobic, fire and digester sectors.

Cylindrical sectional tanks are manufactured in aluminium,galvanised and stainless steel. The range of materials on offerprovides customers with cost effective and project specific optionsin the fire protection, potable and irrigation water storage sectors.

Rotationally moulded tanks ranging from capacities of 500-67,000 litres are currently produced. It is this flexibility andcomprehensive product range that gives Balmoral Tanks itscompetitive advantage.

The vast majority of Balmoral Tanks products are accredited andapproved by numerous agencies: BBA; IAB; IP; LPCB; OFTEC andWRAS to name but a few. In gaining these accreditations Balmoralhas raised the integrity and standards of the tank industry aroundthe world.

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

Quality Assurance Balmoral Tanks is certified to BS EN ISO 9001. The companys QAmanuals are available for examination by all clients.

I, and many of my team, have beendesigning and manufacturing tankssince the 1960sJames S Milne, CBE, DL, Hon DBA, DHCChairman and Managing Director, Balmoral Group Holdings Ltd

GRP sectionalwater tanksWith an unrivalled reputation for quality and service Balmoraloffers sectional tanks, which can be pre-insulated, ranging from1m3-1000m3 litres capacity and erected to a height of 4m in 1mand 0.5m increments.

These tanks carry WRAS approval for potable water storage andLPCB approval for fixed fire fighting sprinkler systems. All panelsare fully tested to resist pressures in excess of six times theirworking pressure.

GRP one-piece tanksGRP one-piece tanks are manufactured to BS13280:2001 standardusing high quality glass reinforced polyester (GRP) resins. The tankscomply with UK water supply regulations 1999 and have beentested and approved by WRAS.

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3DesignThe design of each sectional tank panel is modelled using FEAsoftware. This allows fine detail to be thoroughly investigatedand improved before proceeding to mouldmaking andproduction.

MaterialsAll materials used in the production and assembly of BalmoralGRP tanks are rigorously tested for potable water compatibility.This includes long term material performance and mechanicalproperties, non-metallic components, adhesives, etc.Combined, these analyses form the basis of the companysextensive QC procedures.

Manufacturing processBalmoral sectional tank panels are hot press moulded in glassreinforced plastics (GRP) using isophthalic unsaturatedpolyester resins and electrical glassfibre reinforcement.

The panels are moulded at temperatures up to 150C understrict quality control disciplines. The process results in strong,consistent panels which are fully cured, dimensionallyaccurate with sharply defined profiles and smooth surfaces onboth faces.

Drilling and finishing of the panels is undertaken in a purposebuilt controlled area, where high technology automateddrilling equipment is used to complete production to exactingtolerance levels.

Thermal insulationBalmoral sectional tanks useexpanded polystyrene (EPS)materials in their thermallyinsulated panels. This is madeusing a pentane expansionagent which is CFC and HCFCfree and can be recycled bymelting down and 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 osmotic attack. 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 38C

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

Shore 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

100 Mpa

220 Mpa

12 Gpa

180 Kj/m2

D90

94.1 Mpa

>30%

2.0 x 10-5/C

0.2 Kcal/m hrC

0.6 W/m2 K

< 0.2%

Zero

40mm EPS

ABS

The Balmoral range of sectional GRP tanks may be specified as eitherexternally flanged base (EFB) or internally flanged base (IFB). This allowsthe use of either flat continuous foundations, close centre beams, pierwalls or bearer beams depending upon the type of base required. Theinternally built tank (IBT) to be supported as standard on an IFBfoundation.

The EFB specification is fully self draining allowing ease of maintenanceand cleaning.

Flexibility of panel sizes allows connections to be agreed on site tosuit actual tank location

Modular design provides ease of transport and flexibility of assemblyon either a prepared flat and level concrete foundation, support wallsor bearer beams

Panels are rigidly supported by a combination of stainless steel tierods internally and galvanised box sections externally

Installation is carried out by Balmoral approved installers, fully trainedto provide total unified responsibility

GRP sectional tank construction

Option 1 - Flat foundationFor IFB and IBT tanks. Flat screed concrete foundation to be level and notvary more than 2mm p/m or 6mm p/6m, measured laterally or diagonally.

Levelling steels are recommended due to difficulties in achieving +/- 2mmper metre over whole base area.

Option 2 - Close centre beamsIFB and IBT tanks may also besupported by steel bearer beams.

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

Base support

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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 of 500mm above manway. Aminimum clearance of 350mm is required above the tank tocomply 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

= 190mm over the internal dimensions for each side

= 80mm over the internal dimensions for each side

Box section

Tie rod bracket

Flange types

Flange detail

The dimensions shown above apply to tanks where the top of the tank is less than 2.5m above FFL. Where the top of tank is greater than 2.5m above FFLwork at height equipment should be supplied. Dimensions increase to OD+750mm for fixed scaffold and OD+850mm for mobile tower

IBT tanks to be tight to two adjacent walls only 500mm required underneath the EFB tank for installation IBT tanks maximum height: 3m

External plan sizes (for IFB/EFB only)

5Brace wherenecessary for heavyguards shaped tocircle

Optional guards

6000

mm

max

. bet

wee

n to

p of

tank

or p

latfo

rms

900m

m m

ax.

2500

mm

from

gro

und

Source: BS4211

2

5

4

67

89

10

1214

1516

18

19

20

21

22

1713

1

Description

1 Handrailing and supports

2 Screened air vent

3 Kick plate

4 Profiled heavy duty cover designed to BS 6399 Pt1 1996

5 A4 stainless steel internal fasteners and fixings

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

7 Hinged or mechanically fixed man access

8 uPVC tubular roof support struts

9 GRP or stainless steel internal ladder

10 Balmoral FireFlowTM vortex inhibitor (Fire tanks only)

11 Side entrance manway access panel

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

13 0.5 x 1m hot press moulded panel

14 316 Grade stainless steel internal tie rods

15 316 Grade stainless steel partition supports

16 Partition panels

17 Hot press moulded GRP corner section

18 Tank supported on a flat and level foundation, pier walls or bearer beams (500mm centred 100x50mm high galvanised levelling steels shown)

19 Aluminium or galvanised steel gated ladder

20 Galvanised or stainless steel external fasteners and fixings

21 Galvanised steel external bracing

22 WRAS approved BALSEAL sealing strip

This is not a typical tankdesign. Panels andcomponents are shown forillustration purposes only

Fixed ladderTypical arrangement of a fixed ladder accordingto BS4211

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Case studyGRP sectional water tanks

Sir C Duncan Rice Library, University of AberdeenApplication Potable, non-potable water storage and

rewater sprinkler tank

Tank type GRP sectional tanks

Dimensions 15 x 3 x 3.5m, 5 x 3 x 3m, 2 x 2 x 2m, 2 x 2 x 2m and one-piece 1370 litre break tank

Scope of work Design, manufacture

Main contractor Pihl UK

Installer SPARKS

Date completed September 2011 The Sir C Duncan Rice library was ocially opened by Her Majesty QueenElizabeth II on the 24th of September 2012. Work began on the 57mbuilding in 2009. The new facility, designed by Danish architect, schmidthammer lassen, replaces the ageing Queen Mother Library.

Prof Ian Diamond, principal and vice-chancellor of the University ofAberdeen, said: "This is an outstanding facility of which we can all be veryproud. It will serve the needs and ambitions of our university, city and regionfor many decades to come."

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8Tank replacement services

Balmoral Tanks provides a complete tank replacementservice and has completed a significant number of fullservice projects in recent years.

Acting as main contractors, Balmoral Tanks is supported byin-house health and safety, design and contractmanagement while also providing guidance on ACOP L8and 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

9GRP 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 13280:2001standard using high quality glass reinforced polyester (GRP) resins.The tanks comply with UK Water Supply Regulations 1999 and havebeen 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

Pressed steelsectional water tanksPressed steel sectional tanks with capacities of up to 1300m3 havebeen installed worldwide in water supply projects, the food andprocessing industries, hotels, railways, hospitals and the utilitiessectors. Using proven technology, Balmoral steel sectional tanks andtowers have an outstanding track record.

Balmoral tanks can be found throughout the UK and around the world,particularly in the emerging nations, where water the basis of life isoften difficult to obtain and has to be preciously guarded.

The development of Balmoral Tanks EPDM rubber sealing system,combined with the application of various coatings suitable for thestorage of potable water, has made safe storage of this valuableresource even more certain.

Tanks can be provided for ground level installation or elevated on steelstructures that are specifically designed and fabricated by Balmoral.

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Pressed steel sectional tank construction

Design, performance and construction

Ideal for temporary requirements being simple to dismantle

Technical support provided for site measurements and advice

Technical drawings provided

Full tank erection and site inspection by trained staff

Design and supply of steel towers for elevated tanks

Proven track record over many years

LPCB approved for fire fighting sprinkler application

Manufactured under formal quality assurance procedures to BSEN ISO9001.

Tough, vandal resistant for unsupervised sites

Easy to build, only moderate skills required

No on-site welding, no fire hazard

Flexible system, capacity almost infinitely extendable

Low physical profile (at ground level)

Indicates plate thickness (mm)

Base Base

Tank

dep

th

Tank

dep

th

Description

1

2

3

4

46

8

9

10

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

5

7

1 Screened air vent

2 Pitched weatherproof cover

3 Rafter

4 Internal bracing

5 Balmoral FireFlowTM vortex inhibitor (Fire tanks only)

6 Hot press steel sectional tank panel

7 Low level access manway

8 Aluminium or galvanised steel gated ladder

9 600mm manhole access

10 Gable end fillers

General constructionBalmoral pressed steel tanks are bolted mild steel sectionalwater storage containers. Plates are hot-pressed in ourfactory in the UK to BS1564:1975 Type 1. The panels aremanufactured in 1m2 and 1.22m2 (4ft2) sizes withthicknesses ranging from 4-6mm depending on tank depthand use. Half plates are available. Steel used in plates, stays,cleats, etc, conforms to BSEN10025:1993 S275JR (43Aequivalent).

Tank plates are bolted together using an approved sealant.For ease of access to bolts, tanks are supplied with externalflanges unless customers specify otherwise.

To support pressures exerted by the tanks contents, thesides of all tanks at the junction of four plates are supportedby rolled steel angle stays attached to cleats of equalstrength bolted to tank plates. The pattern of internal staysdepends on tank size and varies between horizontal, verticaland diagonal.

Storage of liquidsThe bolted construction of the tanks allows storage of water up to90C. Temperatures in excess of this would require the tank to be fullyseam welded. For clarification of storing other liquids please consultour engineering department.

To maintain water quality, tanks should be periodically drained, cleanedand disinfected. To ensure continued water supply during cleaning,divided tanks can be supplied where one compartment is used whilethe other is cleaned. See BS6700:1997 for additional advice.

Cover and roofs The roof construction of all steel sectional tanks is designed tosupport the weight of maintenance personnel and their equipment.Design superimposed load is 0.75kN per m2.

Flat covers can be provided for use inside buildings. Pitched roofs arerecommended for outdoor use to allow rainwater to run off. All roofsare fitted with a lockable 600mm2 hinged and sealed manhole.Screened (0.65mm mesh) cowl ventilators are provided as standard.

Pressed steel sectional tanks

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The ends of pitched roofs are closed with stiffened gable fillers whichare bolted to the roof and wall plates.

All joints incorporate jointing strip to make them weather andvermin proof.

Pressed steel tanks are not designated as pressure vessels, but inspecial circumstances the roof can be constructed from standardplates to allow a slight internal pressure. If this is required, pleaseconsult our engineering department.

Laser cuttingBalmoral Tanks uses the latest laser cutting technology to bring highlevels of accuracy to its panels. The cutters use a 3D capabilityproviding precise, repeatable, burr-free profiles and are BSEN ISO9001 certified.

Surface coatings and finishes A wide range of coatings can be applied to the inside and outside ofthe tanks which include hot dip galvanising (BSEN ISO 1461:1999)

and WRAS approved systems. Balmoral Tanks also offers a DWI(Drinking Water Inspectorate) approved coating which meets therequirements of Regulations 31-33 (Reg 25 in Scotland) of theWater Supply (Water Quality) regulations.

TowersWhen a constant pressure head of water is required for supplypurposes, tanks can be mounted on a steel tower at a suitableheight. Towers must be designed with suitable seismic and windloads to accredited standards.

Balmoral Tanks provides a full design and supply service fortowers, to BS5950. When specifying tower requirements it maybe advisable to anticipate future increases in tank capacity.Customers are advised to consider foundation requirements andto let Balmoral know what additional loadings on towers may berequired in the future.

On request Balmoral can supply loading and uplift detailsenabling contractors to design suitable foundations.

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Pipe connections and fittingsAll pipe connections are made at Balmoral Tanks factory beforedispatch and customers are asked to provide full details whenordering. The type of pipe connection should be specified togetherwith the relevant standard to which the coupling flanges are drilledor the pipes screwed. To assist delivery, the size and position ofeach connection should also be specified at the time of ordering.Ball and gate valves and all pipework, including bends and flanges,can be supplied if specified at the time of ordering.

Connections can be supplied as flanged stools to BS4504, ASA orDIN standards, or, for small pipework, screwed sockets to BS1387.The connections are shop-welded to the plates in positions agreedat the time of order.

Pipework configuration The inlet or delivery pipe can enter the tank through either the sidewall at the top of the tank or through the tank base. Flow can becontrolled through a ball valve, equilibrium float valve or automaticfloat switch.

The outlet or service pipe should be taken through the base of thetank and fitted with an internal bellmouth pipe or rose strainer toprevent suspended matter entering the water supply.

The overflow should always be fitted to give at least 75mm offreeboard below the top of the tank in accordance with the UKWater Byelaws, or other regulations, to give the required air gap.

The washout pipe opening should be fitted flush with the bottom ofthe tank and a sluice valve fitted immediately below the tank base.

Optional extras Ball-valve housing used to raise water level to maximise storage Screened overflows and warning pipes to Water Regulation 16

(UK Byelaw 30) Internal and external mild steel ladders complete

with safety hoops and rails Walkways with railings Indicator gear or contents gauges Air gaps to latest WRAS guidelines

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InsulationBalmoral pressed steel sectional tanks use an integrated insulation systemwhich is mechanically fixed to the steel plates and incorporates "Envirotherm70" EPS foam insulation. The foam is dimensionally stable with very low wateringress ensuring long term thermal performance. It is made from a pentaneexpansion agent which is CFC and HCFC free and can be recycled by meltingdown and reforming.

The external skin of the panel is manufactured in UV resistant thermoplasticgiving an overall typical thickness of 95mm providing a typical U value of lessthan 0.4 W/m2K.

Filling and testingThis should be done as soon as possible after the tank is built and in any eventwithin the time specified in Balmoral Tanks warranty conditions. Balmoral Tankscontract does not provide for a member of staff being present during filling.

Conditions of contract All work is carried out under Balmoral Tanks conditions of sale as stated in theoriginal quotation. Extra copies are available on request.

Encapsulation skin

Envirotherm 70 insulation

Recess for insulationfixing brackets

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Nominal capacity chartsMetric and imperial

1m module tanksTank capacities in litresTo convert to gallons divide by 4.546

Length xbreadth(m)

2m deepcapacity

(litres)

3m deepcapacity

(litres)

4m deepcapacity

(litres)

5m deepcapacity

(litres)

1m deepcapacity

(litres)

2 x 1 2000 4000 6000 8000 10000

3 x 1 3000 6000 9000 12000 15000

2 x 2 4000 8000 12000 16000 20000

3 x 2 6000 12000 18000 24000 30000

4 x 2 8000 16000 24000 32000 40000

3 x 3 9000 18000 27000 36000 45000

4 x 3 12000 24000 36000 48000 60000

4 x 4 16000 32000 48000 64000 80000

5 x 4 20000 40000 60000 80000 100000

5 x 5 25000 50000 75000 100000 125000

6 x 5 30000 60000 90000 120000 150000

6 x 6 36000 72000 108000 144000 180000

7 x 6 42000 84000 126000 168000 210000

7 x 7 49000 98000 147000 196000 245000

8 x 8 64000 128000 192000 256000 320000

10 x 8 80000 160000 240000 320000 400000

9 x 9 81000 162000 243000 324000 405000

10 x 10 100000 200000 300000 400000 500000

11 x 11 121000 242000 363000 484000 605000

12 x 12 144000 288000 432000 576000 720000

13 x 12 156000 312000 468000 624000 780000

13 x 13 169000 338000 507000 676000 845000

1.22m module tanks Tank capacities in litresTo convert to gallons divide by 4.546

Length xbreadth(m)

2.44m deepcapacity(litres)

3.66m deepcapacity(litres)

4.88m deepcapacity(litres)

1.22m deepcapacity(litres)

2.44 x 1.22 3632 7264 10896 14528

3.66 x 1.22 5448 10896 16344 21792

2.44 x 2.44 7364 14528 21792 29056

3.66 x 2.44 10896 21792 32688 43584

4.88 x 2.44 14528 29056 43584 58112

3.66 x 3.66 16344 32688 49032 65376

4.88 x 3.66 21792 43584 65376 87168

4.88 x 4.88 29056 58112 87168 116224

6.10 x 4.88 36320 72640 108960 145280

6.10 x 6.10 45400 90800 136200 181600

7.32 x 6.10 54480 108960 163440 217920

7.32 x 7.32 65376 130752 196128 261504

8.54 x 8.54 88984 177968 266952 355936

9.76 x 8.54 101696 203392 305088 406784

9.76 x 7.76 116224 232448 348672 464896

10.98 x 9.76 130752 261504 392256 523008

10.98 x 10.98 147096 294192 441288 588384

12.20 x 10.98 163440 326880 490320 653760

12.20 x 12.20 181600 363200 544800 726400

13.42 x 13.42 219736 439472 659208 878944

14.64 x 14.64 261504 523008 784512 1046016

15.86 x 15.86 306904 613808 920712 1227616

Positioning of pipe connections

Connection details (flanges or pads)

Nominaldiameter(mm)

Flange outsidediameter (mm)

Pitch circle

Bolts (or studs)

Number Diameter

Metre square plate

B C D E

4ft square plate

B C D E

Preferred positions

25 115 85 4 M12 110 365 275 110 110 250 275 110

40 150 110 4 M16 125 350 315 125 125 235 315 125

50 165 125 4 M16 135 340 335 135 135 225 335 135

65 185 145 4 M16 145 330 360 145 145 215 360 145

80 200 160 8 M16 150 325 375 150 150 210 375 150

100 220 180 8 M16 160 315 400 160 160 200 400 160

125 250 210 8 M16 175 300 435 175 175 185 435 175

150 285 240 8 M20 195 280 480 195

175 315 270 8 M20 210 265 515 210

200 340 295 12 M20 220 255 545 220

BS 4504 NP16 A = 609mm A = 500mm

A

BC

D

E

NoteIt is preferable to make positions A and B the standard positions and for economythese should be used whenever possible. Positions C, D and E show the maximumvariations from positions A and B so as to clear the strengthening impressions inthe plate. If required, larger pipe flanges can be easily accommodated.

These charts are not exhaustive as tanks can be configured to suit any application

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Case studyPressed steel sectional tanks

Coca Cola Bottling Company of GhanaApplication Raw water storage

Tank type Hot press steel sectional tank

Dimensions 25.6 x 24.4 x 4.9m

Capacity 3000m3

Scope of work Design, manufacture

Date completed November 2000

This tank was supplied to The Coca Cola Bottling Company of GhanaLtd, at their plant in Accra, as part of an expansion of their productionfacilities in 2000.

The tank stores water from the Ghana Water Company mains supplyand provides buer storage to overcome additional production andirregular supply.

The water stored is classed as Raw and undergoes further treatmentbefore reaching the product line.

Tank towersBalmoral Tanks provides a design and supply service for towers tofully accredited standards.

When specifying tower requirements it may be advisable to anticipatefuture increases in tank capacity. Customers are advised to considerfoundation requirements and to let Balmoral know what additionalloadings on towers may be required in the future.

On request Balmoral can supply loading and uplift details enablingcontractors to design suitable foundations.

Balmoral Tanks tower specification guide: Towers designed to BS EN 1993-1-1:2005 (Core document) Loadings to BS EN 1991 (Core documents) Seismic design to BS EN 1998-1:2004 including BS EN 1998-6:2005.

(Core documents) Fully galvanised construction to BS EN ISO 1461:2009 Towers designed to support steel and GRP tanks Height to suit project requirements Requires concrete foundation to be designed/built by others Fully bolted connections, no site welding. Only interference-type

bolts used no preloaded friction grip bolts Access to the tank via caged ladders and fully hand-railed

intermediate and perimeter walkways Walkways designed to 5kN/m2 loading Open support structure allowing easy routing of pipework Tower can be disassembled and rebuilt if required Suitable for containerised shipment

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Tank tower construction

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Description

1

2

3

4

6

8

9

10

5

7

1 Water tank

2 Handrails

3 Rest/value platform

4 Caged ladder access

5 Base plate with holding down bolts

6 Lateral load bracing

7 Column

8 Bolted connections

9 Tank support beams

10 Perimeter platform

Components shownare for illustrationpurposes only

Cylindricalsectional water tanksBalmoral cylindrical sectional tanks are manufactured in aluminium,galvanised and stainless steel. The range of materials on offerprovides customers with cost effective and project specific optionsin the fire protection, potable and irrigation water storage sectors.

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Advantages of cylindrical bolted tanks Bolting sectional tank panels together eliminates the need for

costly site welding and thick re-inforced concrete base structures The latest construction methods use hydraulic jacks allowing the

tanks to be erected within days by a small team. This process alsoreduces health and safety risks by removing the requirement ofworking at height

Cylindrical tank kits are conveniently packed onto pallets tocreate minimum cubic capacity and reduce shipping costs

Standard Balmoral panels are held in stock enabling quickdelivery

Pre-installed liner sealed tanks can be re-located quickly and atminimal expense

Tank capacitiesBalmoral offers an extensive range of LPCB approved cylindricaltanks. A table of dimensions and capacities allows clients toselect a design for their specific application. These optionsallow the flexibility to increase the tank height and reduce thediameter while maintaining the volume if the footprint is anissue. Alternatively, the diameter can be increased and heightreduced if required.

Tank sealingBalmoral offers two types of tank sealant, liner and mastic; themost common being the liner sealed design. The inside of thetank shell is lined with a synthetic EPDM, PVC or butyl rubberliner. The purpose of the liner is to separate the water from thetank shell. The concrete base and shell are also lined with geo-textile matting to provide additional protection againstdamage to the liner.

Cylindrical sectional water tanks

1

2 3

4

5

8

7

6

Description

1 Aluminium or galvanised steel gated ladder

2 600mm manway access

3 Heavy duty roof

4 Kick plate

5 Aluminium, glavanised or stainless steel panels

6 Balmoral FireFlowTM vortex inhibitor (Fire tanks only)

7 Side entrance manway access panel

8 Concrete base

9 EDPM, PVC or butyl rubber liner

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

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Corrosion protection: tank shellBalmorals cylindrical tank shell design is manufactured using pre-mill galvanized steel, with 305g/m of zinc coating each side. Onoccasion, where heavier designs are required, the sheets will be hotdipped galvanized with more than 610g/m zinc coating on eitherside. For specialised applications aluminium and stainless steel tankoptions are available.

All Balmoral tank fittings, flanges and accessories are also hotdipped galvanized as standard with options of epoxy or polyestercoatings available. The galvanized coating of the tank shell alongwith the options of an epoxy performance coating for suchapplications as potable water or polyester coatings for aestheticrequirements guarantee long durability, low maintenance andextended life-cycle costs of the tank shell. Colour options for theepoxy or polyester coatings are available if required.

On standard galvanized tank designs, the coating of the tank shelldoesnt mean a reduction of the galvanized zinc coatings, theepoxy and polyester coatings are in addition to the galvanizingprocess.

Corrosion protection: tank componentsUnder the (LPCB) LPS 1276 approved design, galvanized roofpurlins are kept out of the stored water thus extending the life ofthe tanks roof cover. All nuts, bolts and washers are spungalvanized coated, structural components such as top andbottom angles, wind stiffeners and access manways are hotdipped galvanized with in excess of 610g/m of zinc coating.

Corrosion protection

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Case studyCylindrical sectional water tanks

Fire ghting water storage tank, HateldApplication Sprinkler rewater storage tank

Tank type Galvanised cylindrical tank to LPCB: LPS1276

Dimensions 3.05 x 3.9m

Capacity 31.8m3

Scope of work Design, manufacture, install

Installer Balmoral Tanks Ltd

Date completed August 2012

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This galvanised 31,800 litre tank is usedas a re ghting water storage tank at aschool. The client requested a greenexternal nish to blend in with thesurrounding area.

The tank is tted with an immersionheater and all required ancillaries inaccordance with LPS 1276 includingcontents gauge, drain valve, hinged oatvalve chamber, side entry manway,Balmoral FireFlow vortex inhibitor andoat valve.

The external ladder and handrail aremanufactured in compliance withBS4211 which includes kick plate and aself-closing gate at the top of the cagedladder. Level switches are tted for highand low level readings that aretransmitted to a BMS system.

Installation of the tank was carried outby Balmoral AIRS approved erectors.

Glass fused to steel (GFS) tanks form an integral part of thecompanys industry offering. Manufactured to Balmorals very highsafety and quality assurance standards these products are widelyspecified by the water, wastewater, desalination, food processing,agricultural, chemical, biogas, anaerobic, fire and digester sectors.

When the core materials, glass and steel, are brought together tocreate a Balmoral GFS tank the end-user benefits from two of thestrongest and most resilient materials in the world. Because the glasscoating is applied internally and externally these tanks provide manyyears of virtually maintenance-free service.

Supported by highly experienced engineering and installationpersonnel Balmoral offers a complete GFS tank service fromspecification to installation and commission.

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Glass fused tosteel tanks

25

GFS tank construction

Feature

UV/abrasion resistance

Corrosion free

Integrated coating

Ultra strong

WRAS approved

Description

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

1 Heavy duty roof

2 Glass fused to steel panels

3 External fixings and fittings

4 Side entrance manway access panel

5 Concrete base

6 Aluminium or galvanised steel ladder

7 Platform, handrail and supports

1

2

4

Benefit

Highly resilient product providing many years of low maintenance service

Cost effective and long lasting

Consistency of appearance and high performance

Mix of steel and glass for ultimate reliability

Fit for potable water storage

3

5

6

7

Edible/vegetable oils

Dry bulk solids

Farm digesters

Storm/fire water

Potable water (NSF/ANSI 61)

Filter tanks

Municipal sludge storage (open topped)

Municipal sludge treatment (open topped)

Municipal mesophilic digester (liquid zone)

Drinking water (DWI, Reg 31 Approved)

Municipal backwash effluent

Municipal sludge cake storage

Underground/partially back-filled rings

Glass fused to steel floors

Municipal sludge storage (tanks with roof )

Municipal sludge treatment (tanks with roof )

Industrial effluent and/or aeration process

Food process washings

Liquid leachates

Municipal mesophilic digester (top ring and roof )

Thermophilic digester (liquid zone)

Thermophilic digester (top ring and roof )

High temperature applications

Aggressive/chemical industrial effluent

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ApplicationsBalmoral GFS tanks are used across a number of applications in thewater, wastewater, desalination, food processing, agricultural,chemical, bioenergy, anaerobic and fire sectors. Tanks generallyrange in size from 1000-50000m3+.

GFS tanks

ApplicationBalmoralGFS-2F Internal colours

BalmoralGFS-2F+

BalmoralGFS-3F

BalmoralGFS-3F+

20 - C - 40RAL5013

20 - C - 40RAL5013

14 - C - 40RAL7009

14 - C - 40RAL7009

MUNSELL7.5yr 7/4

External colours

00 - A - 05RAL7004

14 - C - 39RAL6028

20 - C - 40RAL5013

12 - B - 29RAL6006

Further external colours are available on request. All colouridentification numbers are the closest visual match. Allpanel exteriors are GFS environmental specification.

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DesignBalmoral GFS tanks are designed for long, low-maintenance serviceand allow for future expansion or dismantling and re-assembly.Providing a corrosion-free storage solution the modular tanks areideally suited for installation at remote or difficult to accesslocations.

The tanks meet and exceed international standards including ISO9001:2008 AWWA D103-09, EEA 7.20 and EN ISO 28765:2011. Witha design life of at least 30 years, meeting the requirements of ISO15686 Pt1:2011, Pt2:2012 and Pt3:2002, in practical terms thesetanks offer a service life of 50+ years.

MaterialsWhen the core materials, glass and steel, are brought together tocreate a Balmoral GFS tank the end-user benefits from two of thestrongest and most resilient materials in the world.

Balmoral provides four grades of GFS tanks which range inapplication from pH2-14 and 200-400 microns in thickness. All tankpanels meet or exceed EN ISO 28765:2011 standards, are hardwearing, strong and flexbile.

Balmoral GFS-2F pH3-9 200-360 microns

Budget solution suited to bulk liquid storage, storm waterattenuation, filter tanks, sludge storage, etc.

Balmoral GFS-2F+ pH3-10 200-360 microns

Used in similar applications to Balmoral GFS-5 but with the added benefit of high voltage testing to provide optimumprotection in demanding service conditions.

Balmoral GFS-3F pH2-11 280-460 microns

This high quality finish sets the recognised industry standard fordemanding storage conditions and is highly suited to industrialeffluent treatment, sludge digestion, etc. The additional protective layer with its recognised zero discontinuity finishprovides industry-leading storage conditions.

Balmoral GFS-3F+ pH1-14 340-500 microns

The finish of GFS-15 is supplemented in the GFS-20 specification with high voltage testing taking place to 1500 volts. The ultimate in GFS storage provides exceptional andcontinuous storage conditions for the most arduous specification.

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Covers and roofingBalmoral Tanks offers flat and project-specific roof and coveroptions. The company would be pleased to advise on theoptimum choice from PVC, domed, trough deck, single/doublemembrane and GFS options.

Coatings and finishesAll panel exteriors are glass fused to steel finished in a range ofcolours: RAL 5013, 6006, 6028 and 7004 options are suppliedas standard.

Pipe connections and fittingsThe majority of pipe connections are made at Balmoral Tanksfactory. The type of connection should be specified togetherwith the relevant standard to which the coupling flanges aredrilled or the pipes screwed.

Ancillary equipment includes ladders, walkways andplatforms, manways, ladders, vortex inhibitors, viewports andlevel indicators.

GFS tanks

Installation Balmoral GFS tanks are typically installed by Balmorals dedicatedinstallation team using a proven hydraulic jack system. The upperring and cover are fitted first and then jacked up using Balmoralsproprietary system allowing tanks to be built quickly to maximumheight with minimum health and safety risk.

These tanks are designed to be installed on pre-prepared concretefoundations but can be supplied with a GFS base or cone wherespecified.

Case studyGFS tanks

GFS tanks, UKApplication Waste processing

Tank type Glass fused to steel

Digester tanks Total capacity:8000m3

Hydrolysis tanks Total capacity:450m3

Gas holder tank Total capacity:1200m3

Date completed 2003

A major UK waste processing companycontinues to enjoy the benefits of glassfused to steel tanks more than ten yearsafter the tanks went into service.

The tanks were supplied in 2003 to aGerman process company who managedthe project from initial concept through tocommission.

The project called for three digester tankstotalling approximately 8000m3, twohydrolysis tanks totalling approximately450m3 and a gas holder tank ofapproximately 1200m3 capacity.

The companys GFS manufacturing processhas been fully independently audited since1986. All production work is controlled onone site to simplify the supply chain andprovide a seamless service to customers.

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Fire fightingwater tanks

30

Member

Automatic fire sprinkler, wet riser and mist system tanks areinstalled for two main reasons; property protection or life safety.

In both cases their efficiency in controlling and extinguishing fireshas for over one hundred and twenty years protected lives and theenvironment and it should be accepted that all sprinkler systemswill protect lives by restricting fire spread and protection escaperoutes.

Property protection systems are often installed at the request of thebuilding occupiers insurer to protect the business by ensuring thebuilding and contents are protected against fire.

Some systems are installed to comply with building or fireregulations primarily to protect employees, the public and firefighters from the risks of fire. This type of system should be moreaccurately referred to as enhanced availability sprinkler systems butare more commonly called life safety sprinkler systems and includea range of added features which reduce the possibility that thesystem will ever be non-operational due to scheduled service andmaintenance being carried out.

In both of these cases an essential part of the system is the watersupply. This can take the form of a direct supply from the local waterservice main with or without a booster pump or, more reliably,having water stored in a tank with a pump or pumps to deliver thewater to the sprinkler system.

The most common arrangement is a single water storage tank withtwo fire pumps, each capable of meeting the needs of the sprinklersystem.

For enhanced reliability, the water storage tank can be split into twohalf-capacity tanks. This ensures that there is always a water supplyavailable to the sprinkler system, even when one tank (or any of itsequipment) is being serviced or maintained.

Standard of construction for fire fighting tanksIt is essential that the water storage tank is of robust construction andis designed and constructed to need little maintenance or servicing.Balmoral fire fighting water storage tanks are designed in accordancewith best practice and technical information relating to corrosionprotection and design considerations. They are installed such that theneed for emptying for maintenance is reduced to a period of not lessthan 10 years.

Where sprinkler systems are designed to the LPC Rules forAutomatic Sprinkler Installations incorporating BS EN 12845:2009the most commonly used water storage tanks have LPCB approval.LPCB listed tanks must comply with the rigorous manufacturingand test standard LPS 1276.

Type A tanks with a 15-year maintenance free period can still be provided for contracts designed to the now obsolete BS 5306Part 2:1990.

A list of LPCB-approved tanks can be found in the LPCB Red Book andon their website. These tanks come in sizes from 5m3-1300m3 dependingon the hazard category of the sprinkler system. If a larger capacity isrequired a combination of approved tanks can be used.

The relevant sections of the LPC Rules for Automatic SprinklerInstallations incorporating BS EN 12845:2009 that apply to waterstorage tanks for sprinklers are:

TB 203 Care and maintenance of automatic sprinkler systemsTB 204 Sprinkler system gradingTB 209 ESFR sprinkler protectionTB 218 Water supply diagramsTB 221 Sprinkler in schoolsTB 224 Water storage tanks (cisterns)TB 229 Variations to BS EN 12845 rulesTB 233 Water supplies for life safety systems

Sprinkler tanks are also listed by the US insurers certification body ULand by the industrial insurer FM Global for use on specified sites. Forcontracts designed to NFPA 13 (US National Fire ProtectionAssociation Codes) either an FM or LPCB listed tank can be usedsubject to insurers approval.

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Balmoral fire fighting waterstorage tanksCylindrical galvanised steel or aluminiumThis is the most common type of tank used for sprinklersystems. Construction is by galvanised steel or aluminiumsheets that are bolted together to form a cylinder. Amastic seal is applied between each metal sheet or abutyl rubber, PVC or EDPM liner is fitted. These tanks areusually installed close to the protected premises on aprepared concrete base or occasionally inside theprotected premises.

Galvanised pressed steel panelThese tanks are constructed using square steel panelsthat are bolted together to form a cube shape to suit thespace available. They can be installed inside or outsidethe premises.

Hot press moulded GRP panelThese tanks are formed by bolting together square GRPpanels to form a cube to suit the space available. They canbe installed inside or outside the premises.

LPCB-approved tanksBalmoral Tanks provides LPCB-approved fire fighting water tanks up to1300m3 in capacity. Greater capacity tanks are available.

All LPCB listed tanks must bear a plate stating: The name and address of the manufacturer The date of installation The LPCB Reference Number including the type suffix (Superior or

Single) which has been specified by the purchaser and agreed bythe manufacturer

The maximum capacity in cubic metres Multi-supply tanks must indicate the capacity for the automatic

sprinkler system separately

Full holding or reduced capacityA tank is classified as full holding capacity when all water necessary forthe sprinkler system is stored on site. For example an Ordinary Hazard15m (OH3 15m) wet-type sprinkler system would have a 135m3 tank.

A reduced capacity tank for the same hazard could be as small as 30m3

provided the inflow from the service mains could make up the shortfallof 105 m3 in 60 minutes.

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Balmoral FireFlowTMLPCB approved vortex inhibitor

Fire fighting water tanks require a large, fast flowing volume of water witha vortex inhibitor playing a key role in preventing air being drawn into thesystem and reducing the flow. Vortex inhibitors are fitted to the outletpipe of the pumped water system.

As LPCB standards require the usable water level to be no less than100mm above the lowest suction point, the height of the vortex inhibitoralso affects the effective capacity within a sprinkler tank.

Simple vortex inhibitors are available commercially; however the BalmoralFireFlow vortex inhibitor provides a significantly improved design whichoptimises both the capacity of the tank and the flow rate.

Balmorals LPCB-approved vortex inhibitor was designed usingcomputation fluid dynamics to remove turbulent areas that wouldotherwise reduce the flow rate.

Balmorals unique design fully meets the requirements of LPCBs LPS 2070and BS EN 12845 standards, including pipe dimensions, flow rate andmechanical strength, but with the advantage of increasing the effectivecapacity of the tank and decreasing the suction loss through the vortexinhibitor by an industry-leading 30%.

The injection moulded vortex inhibitors are made from structuralthermosetting polyurethane, are fully corrosion resistant and range from80-450mm in diameter. These PU materials are used by Balmorals offshoredivision at water depths of 2000m and beyond.

Balmoral Tanks vortex inhibitor undergoing LPCB test procedures33

This image is taken from a computational fluid dynamics analysisof the Balmoral FireFlow vortex inhibitor which clearly shows asmooth and uniform flow leading to drag reduction and adecrease in suction requirements

Accessories and ancillaries

Most tanks have a vortex inhibitor fitted at the inlet of the pumpsuction pipe to prevent air getting drawn into the pump. ForLPCB approved tanks the vortex inhibitor must be an approvedtype. For NFPA and FM Global contracts the vortex inhibitor mustbe constructed as detailed in their data sheets. See p27 forfurther information

Trace heating and lagging to all exposed water filled pipes, by others

A 25mm warning pipe is installed just above the high water levelto give an early warning of ball valve malfunction

An AB airgap arrangement with side spill over weir assembly and cowl

A larger bore overflow pipe

An access hatch is provided at ground level to allow accessduring tank construction and evacuate personnel in anemergency

A contents gauge or device which shows the level of water in the tank

Some sprinkler tanks will have a fire brigade inlet installed. This allows the brigade to top up the sprinkler water storage if necessary

A sump can be formed in the concrete tank base. This allows thesprinkler pump to draw water to a lower level from the tank

For optimum functionality the following accessories will usually beinstalled on a Balmoral fire fighting sprinkler tank:

A reliable water supply connection (usually direct from the servicemain) capable of refilling a full holding capacity tank in 36 hoursor with sufficient flow to replenish a reduced capacity tank in 30,60 or 90 minutes as necessary

Flow testing facility to prove the flow rate of the infill. Adequatedrainage should be provided for disposal of water during testing

Float or Ball valve/s on the tank infill pipe. These must be locatedin a secure housing on the tank roof

A duel element electric immersion heater to prevent ice formingon the water surface in the area of the ball/float valves onexternal tanks

Electric float switches to transmit signals to the BMS or fire controlpanels to indicate the high/low level volume of water in the tank

A drain valve at low level

A gated ladder to allow personnel to get to the inspection andmaintenance platform on the tank roof

Third party pump suction pipe with an electrically monitored gatevalve, locked open

A rigid roof that excludes daylight, can withstand snow loads andprevents any matter falling into and contaminating the water

Type AB cowl Ground level access hatch

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Ball Float ValveThese are installed at the end of the incoming water supply pipeand automatically keep the tank full.

Vortex inhibitorThese are installed on the suction pipes inside the tank to stop awater vortex forming and air being drawn into the pump. See page25 for more information on the Balmoral FireFlow vortex inhibitor.

Pipe connectionsCustomers are asked to provide full details when ordering. The typeof pipe connection should be specified together with the relevantstandard to which the coupling flanges are drilled or the pipesscrewed. To assist delivery, the size and position of each connectionshould also be specified at the time of ordering. Ball and gate valvesand all pipework, including bends and flanges, can be supplied ifspecified at the time of ordering.

Connections can be supplied as flanged stools toBS4504, ASA or DIN standards, or, for small pipework,screwed sockets to BS1387. The connections are fitted tothe plates in positions agreed at the time of order.

Pipework configuration The inlet or delivery pipe can enter the tank througheither the side wall at the top of the tank or into a raisedchamber. Flow can be controlled through a ball valve,equilibrium float valve or automatic float switch.

Overflows should be positioned in accordance with therequired air gap, and all outlets (suction), drains andoverflows will come through the side walls of the tanks.

Overflows and warning pipes terminate at high level,horizontally, and can be extended to the floor ifrequired.

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TechnicalservicesBalmoral Tanks technical services team providescomprehensive inspection, maintenance, repair andrefurbishment services on all tank products whether they areof Balmoral origin or not.

A wide range of tank types are covered including: Steel cylindrical and sectional GRP sectional Rotationally moulded Glass fused to steel Epoxy steel Concrete Welded

On completion of the tank assessment a written report isprovided including photographs, conclusions and remedial workrecommendations.

Services include: GRP sectional Steel sectional Cylindrical GFS

Visual site inspection - internal and external 3 3 3 3Ultrasonic thickness measurement (UTM) 3 3 3Thickness coating measurement (TCM) 3 3 3ROV inspection 3 3 3 3Repair and maintenance 3 3 3 3Upgrade and refurbishment 3 3 3 3Service level agreement 3 3 3 3Engineering support 3 3 3 3Cleansing and disinfection 3 3 3 3

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Risk assessment and visual inspectionBalmoral Tanks technical teams carry out external and internal inspectionson all types of installation. Inspections focus on the tank material, eg, steel(galvanized or epoxy), GRP, concrete, etc, as well as identifying the design oftank, whether it is sectional bolted, welded or one-piece moulded.

Roof structures and supports are inspected and all ancillaries, fittings andfasteners are checked for signs of deterioration and potential failure. If thetank is of mastic sealed design all external seams are checked for signs ofleaks. Similar external inspection methods are used on liner sealed tanks forsigns of piercings.

Tank inspections can be complex and the following parameters are alwaystaken into consideration: Tank isolation and draining Access and egress (confined space) Working at height (access equipment) Tank cleaning Health and safety controls

During internal inspections all safety procedures are implemented withcurrent certification being issued and adhered to at all times.

Technical services

Health and SafetyBalmoral Tanks technical services teams place thehighest priority on health and safety. Full andcomprehensive risk assessment and methodstatement documentation is carried out andcompleted with personnel certification beingissued to the customer.

Technicians are fully trained to ensure all works arecarried out safely and in compliance with currentlegislative standards. They hold full accreditationand have many years of experience in tankinstallation and technical services. Tank owners andoperators can have 100% confidence in thecompanys technical and practical capabilities.

CertificationSMSTS Site Management Safety Training Scheme

CPCS Construction Plant Competence Scheme

CSCS Construction Skills Certification Scheme

CCNSG Client/Contractor National Safety Group

IPAF International Powered Access Federation

PASMA Prefabricated Access Supply & Manufacture Association

CITB Confined Space Trained

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ROV inspectionA remotely operated vehicle (ROV) may appear to be overly-technical whencarrying out an internal tank inspection, however, when the following pointsare considered it is undoubtedly the safest and most cost effective methodavailable: Improved health and safety procedures No isolation of water supply or decommissioning of mechanical

operations No disruption of water services No insurance premium payments for removing tank from service One man operation means reduced inspection costs No access equipment required for carrying out operations at height Highly detailed inspection No confined space working Inspection completed in a single day Inspection carried out at a time to suit customer requirements External tank inspection can be carried out simultaneously

ROV inspection includes: ROV micro submersible unit Umbilical tether Deployment tether unit Digital HD colour video camera Report, including images and recommendations Fully edited video and DVD options

On completion of an ROV inspection, Balmoral will provide a full reportinclusive of images and DVD footage with conclusions and remedial worksrecommendations. Inspections are scheduled to cause minimal disruption.

Ultrasonic thickness measurement (UTM)An ultrasonic thickness gauge is designed to measure materialthickness whilst eliminating the depth of coating on metalsubstrates.

The Balmoral Technical Services UTM gauge: Ignores the coating thickness Provides data output Is hand held and robust Benefits from a backlit display

The thickness of materials cannot always be determined by directmeasurement as access to both sides is not always possible. Theeffects of corrosion and erosion on the reverse of a metal panelmay reduce its thickness significantly without being visuallyapparent on the outside of the tank.

All UTM readings are gauged on the material to be tested withcalibration beforehand using a 10mm transducer probe and threeknown test materials in echo-to-echo mode.

Thickness coating measurement (TCM)Such a device has the capability to measure coating thicknesseswhilst eliminating material depths. The digital reading is fast,reliable and accurate.

The Balmoral Technical Services TCM gauge: Ignores the material thickness Provides data output Is hand held and robust Benefits from a backlit display

An internal probe provides greater stability during measurementallowing for consistent, repeatable and accurate results. Clients areprovided with a test certificate and set of calibration foils followingeach inspection.

Technical services

38

Repair, maintenance and refurbishmentBalmoral provides a wide-ranging service, including: Roof repairs, replacements and upgrades Internal liners or replacement liners (EPDM, PVC or butyl) Access hatches Protective coatings Panel sheet repairs/replacement Fixings and sealants Concrete screeds Concrete tank lining Ancillary items Tank cleaning Complete removal and replacement tanks

On completion of a repair, maintenance or refurbishmentproject the customer receives a checklist to confirm that allworks have been carried out to their total satisfaction.

Service level agreementBalmoral Tanks offers a wide range of service level agreements(SLAs) to suit client and facility management requirements.Created around engineering response times and/or pre-scheduled product coverage the companys technical servicesteams provide international coverage.Bespoke packages are provided to clients with uniquerequirements whatever the location.

Engineering supportMaintenance, repair and service works are fully supported byBalmorals engineering team. Advice is given on how existinginstallations can be brought up to current national andinternational standards including the improvement andaddition of ancillary equipment.

Company engineers work to global standards providing analysis and design support on all tank upgrades and service provision.

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Tank installation

Balmoral Tanks provides a full UK tank erection service. Each site isinspected by a qualified supervisor prior to tank erection ensuringsite and base suitability. An experienced Balmoral team will buildyour tank and leave it ready for commissioning. Supervisors can alsobe provided for overseas contracts. Customers should, however,observe the following check points before calling Balmoral to site:

Tank supportsExternally flanged tanks at ground/floor level require dwarf walls orpiers, made of steel univeral beams, brick or concrete, with footingssuitable for the bearing capacity of the sub-soil. The walls should beat least 500mm high and must run in one direction only with centresat 1000mm or 1220mm depending on the plate dimensions. Theyshould extend at least 150mm beyond the tank at each end.

Dwarf walls should be between 150 and 225mm wide and shouldtaper to no more than 110mm at the top to give access for spannerswhen bolting the bottom joints.

Supports for tanks of 3660mm and over should ideally have capping flatsunder the bottom flanges to give a greater bearing surface. Alternatively,steel supports may be used, in which case customers are advised toconsult Balmoral engineers regarding their design.

AccessTo allow access to bolts, a clearance of 500mm should beprovided all round the tank. When tanks are fitted with covers,a distance of 750mm should be left between the cover andany ceiling to allow access to the manhole. It is the customersresponsibility to ensure adequate clearance around the tank.

Health and safety Balmoral Tanks reserves the right to refuse to carry out workin unsafe conditions. Erectors will observe site safety rulesunder relevant national and local health and safetyregulations.

DelaysBalmoral Tanks reserves the right to make additional chargesfor delays caused by preparatory work not being completedin accordance with its requirements.

Tank typeFixed scaffold

Top of tank 2.5m above FFL

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GRP sectional OD + 500mm OD + 750mm OD + 850mm 500mm 0 500mm

Steel sectional OD + 500mm OD + 750mm N/A 500mm 0 500mm

Cylindrical OD + 1m (500mm must be foundation extension) OD + 1m (500mm must be foundation extension) 1200mm N/A N/A

GFS OD + 1m (500mm must be foundation extension) OD + 1m (500mm must be foundation extension) 1200mm N/A N/A

Accessories Tanks with caged ladders require OD + 1m 1200mm N/A N/A

Large connections and low level access: ensure sufficient space is allowed

GRP sectional IFB - FS Flat continuous support ID + 200mm 2mm in any metre and 6mm in any 6m

IFB - CCS Steels at 500mm centres ID + 200mm 2mm in any metre and 6mm in any 6m

EFB Piers/steels at 1m centres ID + 200mm 2mm in any metre and 6mm in any 6m

IBT Any of the above ID + 200mm 2mm in any metre and 6mm in any 6m

Steel sectional EFB metric Piers/steels at 1m centres ID + 300mm Plus or minus 3mm in any metre

EFB imperial Piers/steels at 1.22m centres ID + 300mm Plus or minus 3mm in any metre

Cylindrical All Flat continuous support ID + 500mm Plus or minus 5mm in any metre around perimeter of tank

GFS All Flat continuous support ID + 500mm Plus or minus 5mm in any metre around perimeter of tank

Accessories All foundations should be free from any local protuberances and irregularities

Specific details should always be checked prior to building of foundations

Contracts and customer commitment

Customer commitmentRecognising todays requirement for rapid and accurate enquiryresponses, Balmoral Tanks has committed significant investmentto its IT resource. Coupled with this is a determination to assistclients in their day-to-day tasks through the strategic use of thecompanys website as a working business tool.

Balmoral 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 aprogramme of continuous improvement. Visitwww.balmoraltanks.com to see how you can benefit by usingour electronic communication procedures.

EstimatingWith significant investment in a unique electronic estimating systemBalmoral aims to provide an industry-leading turnaround time on allquotations. All estimates can include drawings in both 2D and 3D forimproved clarity of specification and understanding of detail within theproposal. It is this type of commitment to customer service thatdifferentiates Balmoral Tanks in the market place.

DesignBalmorals sales and estimating staff are trained to assist with anydesign requirements supported by a technical team of unrivalledexperience. Balmoral staff will provide clarification and assistance onsuch issues as legislation, tank sizing, site requirements, health andsafety and the full scope of supply needed for each type of tank.

ContractsCustomer orders are reviewed to ensure that expectations are in linewith the scope of supply. The companys contracts management teamprovides a single point of contact to ensure all drawings, logistics andprogramming requirements are fully understood and met.

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GRP/STEEL/CYL/GFS-0614-REV03

DESIGN | MANUFACTURING | PROJECTS | TECHNICAL

Llantrisant Business Park, Llantrisant, Pontyclun CF72 8LF

Tel +44 (0)1443 235170 Email technicalservices@balmoral.co.uk

SALES

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

Tel: +44 (0)208 665 4100 Email watertanksales@balmoral.co.uk

www.balmoraltanks.com

A W

ATERTIGHT

PROMIS

EQUALIT

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UK Designed and manufactured