U K W A T E R I N D U S T R Y – C A P I T A L I N V E S T M E N T

A b o u t

A s s e t I n t e r n At I o n A l l I m I t e d

Weholite HdPe pipes are at the forefront of

technological innovation and development. the

core competencies within our business, such as

production and fabrication, transport, design and

installation, give us a strong competitive advantage

over traditional materials.

Asset offers a comprehensive free design service.

this is inclusive of structural calculation in

accordance with bs en 1295–1: 1998, “structural

design of buried pipelines under various conditions

of loading” in order to determine the deflection

values and the Fos against buckling. Asset

also offers flotation calculations combined with

advanced finite element analysis results, in order

to visualise the behaviour of the pipe under buried

conditions. Furthermore, Asset offers extensive site

and after sales support.

Weholite falls into the structured wall family of

pipes. Invented in the mid-eighties by KWH Pipe, it

is now protected by a number of worldwide patents.

one being the continuous spiral winding process

that allows a wide diameter range of, in Asset’s

case, 400mm to 3500mm and the ability to produce

individual lengths of up to 30m in-house.

the profile design allows us to utilise bespoke

stiffnesses if needed. our design prowess and

reputation as recogonised problem solvers and

solution providers now means that we have a

proven track record in the uK water industry.

Weholite pipes hold a Kitemark and are

manufactured in accordance with bs en 13476-2:

2007, using state of the art extrusion equipment.

With four production lines, we are capable of

producing more than twelve thousand tonnes per

annum and have total flexibility on length; offering

anything from 300mm up to 30m. We have a vast

diameter range, 400mm to 3500mm, covering the

offering that traditional materials provide; but the

difference is that we can tailor the stiffness to suit

the project. Pipes can be joined in a variety of ways

from the non-watertight plastic band to the 100%

watertight teekay mechanical coupler or hand

extrusion weld, to the full penetration machine weld

for marine applications. standard Weholite can be

used at a continuous operating pressure of 1 bar,

with lP Weholite suitable for pressures up to 2 bars.

the factory also houses a specially equipped

6000m² pre-fabrication unit. one of the real

benefits of Weholite is its ability to be prefabricated

into a vast array of bespoke components that

provide unique solutions to the end-user.

W H At I s W e H o l I t e ?

Certificate no Fm 12306bs en Iso 9001:2008

01/r124Km 560128

Asset International limited (Asset) is part

of the Hs utilities Group of Hill & smith

Holdings plc. Hill & smith Holdings plc

is a decentralised manufacturing group

specialising in serving the infrastructure,

building and construction industries.

Asset started life in 1953 as the main

european manufacturing base for Armco

Construction Products and became famous

for the W-section safety fence that can

still be seen on motorways today. Armco

also manufactured corrugated steel bolted

structures known as multiplate and spirally

wound corrugated steel pipes.

In 1995 Asset acquired the uK license to

manufacture and sell Weholite from KWH

Pipe of Finland, one of the world’s most

innovative plastic pipe companies. KWH Pipe

continues to heavily invest internally, allowing

the company to manufacture state-of-the-art

processing machinery. Asset is the world’s

largest producer of Weholite.

www.weholite.co.uk

F l o o d A l l e v I A t I o n

Applications include:

• Floodalleviation • Onlineattenuation • Offlineattenuation •Multi-legstorage • CSOstorage • DWFchannel • Stormwaterrun-off • Liquortanks • Pumpingstationsandoverflowstorage •Wastewatertanks • Sewerrelining

P h o t o g r a P h y

1 1500mm diameter multi-leg Cso storage at Preston village for northumbrian Water

2 3500mm diameter attenuation tank, Herne bay, Kent

3 3500mm diameter tank at Crawley stW for thames Water

4 2500mm diameter pumping station and overflow tank at steynton for dwr Cymru Welsh Water

5 2100mm diameter on and offline Cso storage at shiremoor for northumbrian Water

6 3500mm diameter tanks at Chertsey stWfor thames Water

7 2600mm diameter, 10,000 cubic meter volume tank at meadowhead for scottish Water

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C s o C H A m b e r s A n d b e s P o K e F A b r I C A t e d P r o d u C t s

Applications include:

• CSOcontrolchambers • Inletchambers • Oversizemanholes • Pumpingchambers •Wetwells • IndividualpropertyNRV-MOPSchambers • Verticalstorageshafts • Aerationtanks • Collectionchambers • De-chlorinationchambers • Staticscreenchambers •Mechanicalscreenchambers • Overflowstoragetanks • Temporarysumpchambers • Pumpchamberrelining • HDPEweirwalls

P h o t o g r a P h y

1 Packaged Pumping stations for severn trent Water

2 Control Chamber with weir at Goodrington for sW Water

3 1050mm diameter one piece pumping station and valve chamber for severn trent Water

4 2500mm diameter patented Cso control chamber at Caerphilly for dwr Cymru Welsh Water

5 2500mmdiameterfactorybenchedoversizemanhole at Harrow for thames Water

6 3000mm diameter patented Cso control Chamber in birmingham for severn trent Water

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Applications include:

• Inter-processpipework •Wallcouplers • Valvechambers • Flowmeterchambers • Drawpits • Outfallpipelines • Intakepipelines • Abovegroundpipelines • Sludgetanks • Backwashchambers • RASpipework • FSTpipework • Separatorchambers • Flangeconnections

P h o t o g r a P h y

1 600mm diameter rAs pipework at minworth stW for severn trent Water

2 2100mm diameter wall coupler at Crossness stW for thames Water

3 2200mm diameter slow-bend for Fst at beckton stW for thames Water

4 1200mm diameter pipework at Claymills stW for severn trent Water

5 2100mmdiameteroversizeinspectionmanholeatnaburn stW for Yorkshire Water

6 600mm diameter rAs pipework valve connections at minworth stW for severn trent Water

7 3000mm diameter pipework at beckton stW for thames Water

W A s t e W A t e r A n d s e W A G e t r e A t m e n t P l A n t s

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d r I n K I n G W A t e r t r e A t m e n t P l A n t s A n d C H l o r I n e C o n t A C t t A n K s

DWI Regulation 31 Reference number DWI 56.4.513 “Approved for the use in public water supplies”

Applications include:

• Inter-processpipework •Wallcouplers • Valvechambers • Flowmeterchambers • Drawpits • Contacttanks • Balancetanks •Washtanks • Potablewatertanks • Backwashchambers • Abovegroundpipework • Aerationtanks • Bellmouths • Internaltanklandingplatforms • Flangeconnectors

P h o t o g r a P h y

1 3500mm diameter flow meter chamber at Walton-on-thames WtW for thames Water

2 3500mm diameter Chlorine Contact tank at Wraithby for Anglian Water

3 3500mm diameter Chlorine Contact tank at Wraithby for Anglian Water

4 3500mm diameter flow meter chamber at Walton-on-thames WtW for thames Water

5 500mm diameter inter-process pipework at Caister WtW for Anglian Water

6 3500mm Chlorine Contact tank at Wraithby for Anglian Water

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o d o u r C o n t r o l A n d v e n t I l At I o nd u C t s

Applications include:

• Inter-processductwork •Wallcouplers • Valvechambers • Plenumboxes • Drawpits • Airintakepipework • Reducers • Bafflehousings • Damperplates • Condensationsumpcollectors • Flangeconnectors • Accesspanels • Electronicmountingplates • Serviceaccesschambers

P h o t o g r a P h y

1 1500mm diameter odour control duct at Hull stW for Yorkshire Water

2 1200mm diameter ventilation ducts in sweden

3 1050mm diameter ventilation duct for Acton leisure Centre, london

4 1050mm diameter ventilation manifold for tuke school

5 1050mm diameter inspection chamber for tuke school

6 1350mm diameter ventilation ducts at Pendennis shipyard, Cornwall

7 1200mm diameter ventilation ducts in sweden

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Applications include:

• Flowmeterchambers • Onsiteweldingprofilefilling • Submersiondesignwork • Surfacewatercollection • Coolingwaterintakelines •Marineandlandoutfalls

P h o t o g r a P h y

1 1600mm diameter pipeline being towed into position at a server project in Finland

2 1500/2400mm diameter intake structure for vomb power plant, sweden

3 2400mm diameter outfall pipeline for Philippines power plant

4 2200mm diameter cooling water intake pipeline at Combigolfe Power Plant, marseille for Alstom Power

5 2400mm diameter land outfall pipeline at Combigolfe Power Plant, marseille for Alstom Power

6 1400mm diameter raw water intake pipeline for skåne region, sweden

7 1600mm diameter pipeline being launched into the sea at a server project in Finland

m A r I n e A P P l I C A t I o n s

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Applications include:

• Groundairheatexchangers • Anaerobicdigestionvessels • Geo-thermalchambers •Waterenergyexchangers •Windfarmsurfacewaterdrainage • Aboveandbelowgroundrainwater • harvesting tanks

• Hydro-electricitypipelines

P h o t o g r a P h y

1 3500mm diameter pipe being delivered for the Ad tank at brewery site in Ipswich

2 1050mm diameter header manifolds for ground air heat exchanger at banff and buchan College in partnership with rehau

3 3500mm diameter Ad tank in Kent

4 2000mm diameter surface water collection pipeline at Glendoe hydro-electric plant for scottish & southern energy

5 3500mm diameter anaerobic digestion vessel at brewery site in Ipswich

6 1200mm diameter header manifold for ground airheatexchangeratQueenElizabethSchool,dorset, in partnership with rehau

7 3500mm diameter Ad tank lifted into position in Kent

r e n e W A b l e e n e r G Y

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W e H o l I t e A n d t H e e n v I r o n m e n t

W e H o l I t e m o d u l A r

In an era when global warming is having a significant

effect on our climate and catastrophic weather

events are devastating local communities, the use of

innovation is of vital importance. As environmental

issues continue to rise up the political agenda, the

water industry is being forced to look towards more

innovative solutions that play a part in reducing

carbon footprints.

Weholite pipes can contribute significantly towards

the greener objective. looking closely at all stages of

the process, including production and transportation

as well as installation; the carbon footprint of

Weholite is significantly lower than traditional

materials, in particular concrete.

Weholite pipes can be delivered in very long lengths

and can also nest, a practice that drastically decreases

the number of lorry loads, meaning less emissions and

subsequently less disturbance for local communities.

It is also widely recognised that by using Weholite, the

overall installation time can be reduced due to the long

lengths and light weight properties, as well as the ability

to prefabricate fittings and complex sections.

Asset offers carbon footprint calculations for every

scheme, aiming to help water authorities achieve their

ultimate target of minimising carbon emissions. All

calculations are in accordance with the carbon footprint

calculator that has been developed by the environment

Agency uK. It is considered to be one of the most

comprehensive tools in the construction industry.

Applications include:

• Groundairheatexchangers • Anaerobicdigestionvessels • Geo-thermalchambers • Aboveandbelowgroundrainwater • harvesting tanks

• Intakestructures •ModularBoxes • CSOcontrolchambers • Pumpingstations • Flowcontrolchambers • Ventilationchambers

P h o t o g r a P h y

1 riverside transition box, london marine outfall

2 marine Intake structure, Philippines Power Plant

3 KWH Pipe, inspection and control chamber, sweden

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Asset International ltd., stephenson street, newport, south Wales. nP19 4XH www.weholite.co.uk sales@weholite.co.uk +44 (0)1633 273081