PRESSURE PIPES 88

Pressure PipesThe Civil Engineering Teams at EH Smith specialise in the supply ofpressure pipes to suit all applications.

PolyethyleneMedium density Polyethylene (MDPE), now known as PE80 and HighPerformance Polyethylene (HPPE) now PE100, are a cost effectivealternative to traditional iron pipes. They are well established products for the transportation and distribution of potable and wastewater, and have had water industry certification for many years. Theyare now widely used with many advantages:

• Pressure range 6-16 bar• Corrosion free• Colour coded for application• Supplied in sticks or longer coils• Fusion or compression jointing methods• Size range 20mm-630mm• Full range of fittings • Special fabrications available

Ductile IronA long established product for conveying water and sewage underpressure, ductile iron is a highly specified product. It’s extremely versatile in terms of the variety of coatings available for different applications and the ground conditions it can withstand:

• EN545 for potable water• EN598 for waste water and sewage• Flanged connections for above ground• Tyton push-fit for below ground• 80-1400mm size range

Valves & CouplingsValves are required in every pressurised system as a means of isolat-ing a section of mains, for washout, or for preventing backflow wherepumps are in operation. EH Smith can offer any valve required:

• Gate Valves• Non-Return valves• Flap Valves• Penstocks

Couplings and Adaptors provide flexibility in a pipework system anda means of connecting pipes of different materials and different sizes.We can offer a variety of options both off the shelf and made to order:

• Straight couplings 50mm-2000mm• Flange adaptors• Self anchoring • Repair clamps• Wraparound couplings for ‘out of round’ pipes

PRESSURE PIPES

PE SYSTEMS FOR POTABLE WATERPE100: SupaSureDark blue pipe manufactured from HPPE (High Performance Polyethylene)Available in two pressure ratings:

16 Bar SDR 11 pipe – sizes 90-560mm10 Bar SDR 17 pipe – sizes 90-630mm

Range of straight lengths and coil sizes available. Electrofusion and Fabricated fittings available. Optimal service for long service life.Resistant to corrosion in naturally occurring ground conditions. Easy installation.

89 PRESSURE PIPES

PE SYSTEMS FOR NON-POTABLE WATERPE100: JetBlack pipe manufactured from HPPE (High Performance Polyethylene)Available in two pressure ratings:16 Bar SDR 11 pipe – sizes 90-560mm10 Bar SDR 17 pipe – sizes 90-630mmElectrofusion and Fabricated fittings available.Suitable for transportation of non-potable water and sewerage belowground and for irrigation. May also be used for Potable Water in aboveground applications only. Well established in industry providing optimal performance for long service life. Resistant to corrosion in naturally occurring ground conditions. Easy installation.

PE80: BlackBlack pipe manufactured from MDPE (Medium Density Polyethylene)Available in two pressure ratings:12.5 Bar SDR 9 pipe – sizes 20mm

SDR 11 pipe – sizes 25-315mmElectrofusion and Fabricated fittings available. Suitable for transportation of non-potable water and sewerage below ground and for irrigation. May also be used for Potable Water in aboveground applications only. Well established in industry providing optimalperformance for long service life. Resistant to corrosion in naturallyoccurring ground conditions. Easy installation.

PE80: SureLight blue pipe manufactured from MDPE (Medium Density Polyethylene)Available in two pressure ratings:12.5 Bar SDR 9 pipe – sizes 20mm

SDR 11 pipe – sizes 25-315mm8 Bar SDR 17 pipe – sizes 90-315mmRange of straight lengths and coil sizes available. Electrofusion and Fabricated fittings available. Optimal service for long service life.Resistant to corrosion in naturally occurring ground conditions.Easy installation.

Water Pipe Systems

Products Material Colour Size range SpecificationService pipes PE80(MDPE) Blue/Black 20-63mm BSEN12201Pt.2Pipes or potable water use below PE80(MDPE) Blue 90-630mm BSEN12201Pt.2ground PE100(HPPE)Pipes for potable water use above PE80(MDPE Black 90-630mm BSEN 12201ground and sewerage and waste PE100(HPPE) Pt.2water applicationsElectrofusion Fittings PE80(MDPE) Blue/Black 20-315mm BSEN 12201

Pt.3Spigot fittings for butt or PE80(MDPE) Blue/Black 63-400mm BSEN 12201electrofusion jointing PE100(HPPE) Pt.3

PRESSURE PIPES

PRESSURE PIPES 90

PE SYSTEMS FOR GAS

PE BARRIER PIPE SYSTEMS PURITON

PE100: SupaGasOrange pipe manufactured from HPPE (High Performance Polyethylene)Available in two pressure ratings:7 Bar SDR 11 pipe – sizes 50-500mm4 Bar SDR 17.6 pipe – sizes 90-500mmRange of straight lengths and coil sizes available. Electrofusion fittingsavailable. Provide reliable pipelines for both service and mains distributionof Natural Gas and LPG.

PE80: GasYellow pipe manufactured from MDPE (Medium Density Polyethylene)Available in two pressure ratings:5.5 Bar SDR 9 pipe – sizes 20mm

SDR 11 pipe – sizes 25-500mm3 Bar SDR 17.6 pipe – sizes 90-500mm. Range of straight lengths andcoil sizes available. Electrofusion and galvanised spigot stub flange fittings available. Provide reliable pipelines for both service and mains distribution of Natural Gas and LPG.

Developed by Uponor for the transportation of potable waterthrough contaminated land, the PURITON pipe and fittings system combines the barrier properties of aluminium with thebenefits of polyethylene. The result is a system which is contamination resistant, flexible, lightweight and easy to joint.

INSTALLATION COST SAVINGS• Up to 55% faster to install compared with ductile iron• Fewer joints, fewer fittings• No thrust blocks

EASIER HANDLING• 80% lighter than cement lined ductile iron• Flexibility of plastic, contamination resistance of Aluminium• Supplied in 50m Coils as standard

FULL BARRIER SYSTEM• Fully welded substantial barrier• Minimal and simple installation tooling• No additional wrapping necessary, no reliance on rubber

seals

SECURITY AND CONFIDENCE• Fully end load bearing with regard to the fittings resistance

to disengagement• Full barrier fittings system including tapping tees• Barrier in centre of pipe wall for protection from damage

QUALITY• Approved for use in public water supplies• Manufactured under strict quality control procedures

in an ISO9001 factory• WIS4-32-17*• WRAS approval numbers 0306096 and 0306097

WIS4-32-17- Water Industry Specification for polyethylene pressure pipes for pressurised water supply and sewerageduties.

PRESSURE PIPES

Puriton fittings25mm and 32mm Compression Fittings – Jointing & Protection

The dedicated Puriton barrier fittings range for pipe diameters25mm and 32mm are manufactured from a dezincificationresistant grade of brass to BS EN 12164.

The use of a full metal-bodied fitting with its unique insertdesign provides a complete contamination barrier across thejoint. This dedicated fitting range completely eliminates therequirement for ‘wrapping’ the joints to ensure the protection to the system.

The 25mm and 32mm compression fitting joints are made quickly and easily, without the need for any specialist equipment. They are fully ‘end load bearing’ and are ready for commissioning immediately after installation.

Sealing is provided on both the internal and external surfaces of the pipe by means of water quality approved EPDM ‘O’ ringseals, ensuring leak-tightness and minimising the possibility of contaminants making contact with the drinking water.

The male end connection for the 25mm and 32mm fittings are1” and 1 1/4” to British Standard Pipe Thread, BS21.This applies to all fittings except for the transition coupler: BSPscrew thread = 3/4” and 1”.

All threads are parallel and are male. Where connections toancillary components such as boundary boxes, stop taps etc,are required, then a suitably approved sealant should be used,i.e. PTFE thread tape.

FIG.2

91 PRESSURE PIPES

Description Product Pack Code Quantity

25mm x 1” MBSP Coupler 25PU01 132mm x 1 1/4” MBSP Coupler 32PU01 163 – 110mm available to order.

TRIGON

• Multi-layered polyethylene and aluminium pipe system withcorrosion-resistant fittings.

• Pressure rating: 12.5 Bar – 25, 32 and 63mm• Provides reliable, cost effective solutions for delivering drinking water through contaminated environments

• Blue pipe marked with distinctive brown stripes for easyidentification

• Flexible, lightweight pipe, easy to handle and install• No pipe preparation or wrapping of joints needed with fittings

• Core pipe Kitemarked to BS6572• Fittings WRc, DVGW and KIWA approved• System approved under Regulation 31 (formerly Regulation 25)