TwinWall product and installation guide - ESI.infocms.esi.info/Media/documents/Wavin_Twinwall_ML.pdfFOR COMMERCIAL AND INDUSTRIAL APPLICATIONS TwinWall Surface & Storm Water Drainage

FOR COMMERCIAL AND

INDUSTRIAL APPLICATIONS

TwinWallSurface & Storm Water Drainage System

Product andInstallation Guide

Intelligent Solutions for Below Ground Projects

CI/SfB(52.5) In6

Feb 2005 TW203

Uniclass EPICL7314:P71 J3413:X71

CUSTOMER SERVICES 01249 766611

TECHNICAL ENQUIRIES01249 766655

TECHNICAL FAX 01249 766653

[email protected]

TWINWALL SURFACE & STORMWATER DRAINAGE SYSTEM

Introduction to OSMA - from Wavin

2

From WavinOSMA

OSMA, from Wavin Plastics Limited, is

the leading name in plastic systems for

building, construction and utilities. The

OSMA product range is unrivalled in

scope and quality, covering:

Above Ground systems

Plumbing and Heating systems

Below Ground Drainage systems

Water Management systems

Ducting systems

Water and Gas Distribution systems

Quality assured products

OSMA systems are the benchmark for

excellence and product innovation:

precision-manufactured in the UK using

the most advanced injection moulding

and extrusion machines. All products

comply with or exceed relevant British

and European standards to ensure

reliability and long-lasting service.

Intelligent connections

OSMA systems offer integrated solutions.

This enables specifiers and installers to

assemble complete drainage, plumbing

and heating, and pressure pipe systems

from a single source, with complete

confidence in compatibility and

performance.

All systems are backed by comprehensive

technical support and a nationwide

distribution network to ensure availability

when and where required.

Wavin is a leading European manufacturer

of industrial plastic products, and one of

the largest producers of plastic pipe and

fittings in the world.

Wavin is credited with inventing and

pioneering the use of plastic pipe

for water distribution in the mid 1950s.

Constant research and development has

enabled Wavin to maintain its position at

the forefront of plastics technology.

Environmental responsibility

Wavin Plastics Limited has BS EN ISO

9001: 2000 BSI status and was the

first plastic pipe manufacturer to be

accredited to BS EN ISO 14001

Environmental Management Systems.

Wavin Plastics Limited is committed to

environmental responsibility, and is a

leading pioneer of systems to conserve

and control water. In production,

the Company recycles the majority

of waste materials, and sets annual

targets for energy efficiency audited by

the certifying body.

Passion and resourcefulness

All Wavin personnel are committed to

providing a comprehensive, responsive

service – and are passionate about

delivering total Customer satisfaction.

Wavin Plastics Limited maintains an

industry-wide dialogue and rigorous

assessment of all procedures to ensure

that Wavin product development and

product support accurately addresses

the needs of all Customers – today and

into the future.

www.wavin.co.uk

TWINWALL DRAINAGE SYSTEMIntroduction to OSMA from Wavin ■ Contents


Contents

TWINWALL SURFACE AND STORMWATER DRAINAGE SYSTEM Product & Installation Guide 2005

Range Introduction 4System Overview 4

Application 5

System Benefits 5

Quality Assurance 5

Product Details 6Pipe 6

Couplers 6

Adaptors 7

Reducers 7

Bends 8

Ring Seals 8

Junctions 9

End Caps 9

Non-entry Inspection Chamber 10

Road Gullies 10

Manhole Bases 10

Contents

Advice and TechnicalAssistance 11

Further information

The following related publication is

available for OSMA TwinWall Surface and

Stormwater drainage systems:

Trade Price List

To obtain copies, please contact:

Literature requests

Tel: 01249 766333

Fax: 01249 766332

[email protected]

www.wavinpdfs.co.uk

3




[email protected]


Range Introduction ■ System overview

4

TwinWall Surface and StormwaterDrainage system

TwinWall is a cost effective pipe system

intended for use as a direct alternative to

all non-pressurised gravity drain systems

other than where Local Authority adoption

is necessary. Smaller diameters are

manufactured from high density

polyethylene and larger diameters

manufactured from polypropylene.

Typical applications include highway filter

and carrier drains, rail track drainage, and

unadoptable surface water drains, for

example, on industrial or commercial

developments.

TwinWall is manufactured by a twin

extrusion process in which the two layers

are extruded simultaneously, one inside

the other, and heat welded together in one

continuous process.

The pipe is available in nominal diameters of

100, 150, 225, 300, 375, 450, 500 and

600mm in standard 6m lengths. It may be

supplied either plain for use as a carrier

drain, and either half or fully perforated for

use as filter drains.

Pipes are supplied in 6 metre lengths,

unperforated or perforated. Perforated pipe

has 4 slots equally spaced around its

circumference. Half perforated pipe has

either 2 or 3 slots per dwell according to

diameter with the permeable area reduced

proportionally.

TwinWall when slotted exceeds the

Department of Transport’s minimum

requirement of 1000mm2 per metre length.

The pipes are black in colour, the outer

wall being corrugated and the inner wall

having a smooth finish to assist the

hydraulic flow.

The twin wall construction helps to

maintain flexibility and reduce the

possibility of impact damage on site.

A comprehensive range of push fit

components are also available for each

diameter.

Range Introduction

TwinWall is classed as a flexible pipe

and as such it is recognised that

it is designed to deform

under loading.

The predicted 50 year

ultimate stiffness of

the pipe exceeds

the minimum

requirement of

the Department

of the Environment, Transport and the

Regions and the Highways Agency

requirements.

TwinWall can be used as an alternative to

those listed for surface water drainage in

Table 5/1 of the Manual of Contract

Documents for Highways Works (MCHW),

Volume 5.

The pipe will perform within the required

design limits under main traffic loading.

System Overview

www.wavin.co.uk

TWINWALL DRAINAGE SYSTEMIntroduction ■ Overview ■ Application ■ Benefits ■ Quality


Application ■ Benefits ■ Quality Assurance

5


TwinWall is lightweight, making

installation quicker with reduced

Health and Safety risks.

Ease of installation and the

elimination of wastage reduces

labour and plant costs.

Longer lengths and fewer joints

assist in both flow capacity and self

cleansing velocity.

The flexibility of TwinWall eliminates

the need for rocker pipes, and the

pipe can be cut on site.

TwinWall is resistant to most

naturally occurring chemicals and is

therefore suitable for use in the

majority of soil conditions.

The TwinWall range is designed for use in

gravity surface and storm water drainage

applications. Adaptors and Reducers are

available for connection to traditional

materials.

Uses Include: Highways Filter Drains,

Carrier Drains, Golf Course Land

Drainage, Surface Water / Main Culverts,

Catchpits, Landfill / Land Reclamation,

Methane Gas Venting, Leachate Drainage.

The following Agrément Certificates have

been awarded to the Wavin TwinWall (150,

225, 300, 375, 450, 500 and 600mm) range

of pipes, ring seals and fittings:

02/H070 HAPAS Roads and Bridges

Wavin TwinWall Highway Drainage

System.

02/3940 Wavin TwinWall Drainage

System.

Application

System Benefits

Quality Assurance




[email protected]


Product Details

6

◗ Non stock item - Lead time available on request

375TW046 illustrated

Single Socket Pipe

Pipe Nominal Part Number No. of Slots Permeable Area Length (m)ID OD Per Dwell mm2m-1

P/E Pipe 100 118 4TW076 • • 6

unperforated 150 178 6TW076 • • 6

225 268 9TW076 • • 6

300 355 12TW076 • • 6

375 429 375TW076 • • 6

450 514 450TW076 • • 6

500 572 500TW076 • • 6

600 683 600TW076 • • 6

P/E Pipe 100 118 4TW176 6 2952 6

perforated 150 178 6TW176 4 6120-10200 6

225 268 9TW176 4 4680-11700 6

300 355 12TW176 4 5120-12800 6

375 429 375TW086 ◗ 4 6266-10935 6

450 514 450TW086 ◗ 4 6327-10333 6

500 572 500TW086 ◗ 4 6687-10402 6

600 683 600TW086 ◗ 4 6747-10121 6

P/E Pipe 150 178 6TW276 3 4590-7650 6

half perforated 225 268 9TW276 3 3510-8775 6

300 355 12TW276 3 3840-9600 6

375 429 375TW096 ◗ 2 3133-5468 6

450 514 450TW096 ◗ 2 3164-5167 6

500 572 500TW096 ◗ 2 3344-5201 6

600 683 600TW096 ◗ 2 3374-5061 6

S/S Pipe 375 429 375TW046 • • 6

unperforated 450 514 450TW046 • • 6

500 572 500TW046 • • 6

600 683 600TW046 • • 6

S/S Pipe 375 429 375TW066 ◗ 4 6266-10935 6

perforated 450 514 450TW066 ◗ 4 6327-10333 6

500 572 500TW066 ◗ 4 6687-10402 6

600 683 600TW066 ◗ 4 6747-10121 6

S/S Pipe 375 429 375TW056 ◗ 2 3133-5468 6

half perforated 450 514 450TW056 ◗ 2 3164-5167 6

500 572 500TW056 ◗ 2 3344-5201 6

600 683 600TW056 ◗ 2 3374-5061 6

Couplers Nominal ID Part Number

D/S Pipe Coupler 100 4TW205

for joining TwinWall pipe 150 6TW205

225 9TW205

300 12TW205

375 375TW205

450 450TW205

500 500TW205

600 600TW205

Product Details – Pipe

Product Details – Couplers

www.wavin.co.uk

TWINWALL DRAINAGE SYSTEMPipes ■ Couplers ■ Adaptors ■ Reducers


Product Details

7


9TW095 illustrated

Reducer


S/S Adaptor 150 6TW128

to BS 1211 or BS437 cast iron spigot or BS EN 295 clay spigot

D/S Adaptor 150 6TW129

to BS EN 295 Thin wall clay spigot


6TW socket x 160mm BS EN 1401 spigot


6TW socket x 160mmBS EN 1401 socket


6UR spigot x 160mm flexible corrugated pipe socket


6UR spigot x 6TW socket


6TW spigot x 160mm flexible corrugated pipe socket

S/S Adaptor Bend - 45° 150 6TW147

6UR spigot x 6TW socket


UltraRib socket x TwinWall socket


UltraRib socket xTwinWall socket

Product Details – Adaptors


D/S Level Invert Reducer 150 6TW097

6TW socket x 4TW socket

S/S Level Invert Reducer 150 6TW099

6TW spigot x 110mmBS EN 1401 socket


9TW spigot x 6TW socket











Product details – Reducers




[email protected]


Product Details

8

Sealing Rings

Wavin TwinWall sealing rings are supplied loose with fittings as

appropriate. Please note that all fitting prices are exclusive of ring

seals and therefore they must be ordered separately if required.

Short Radius Bends Nominal ID Part NumberDouble Socket

D/S Bend – 87.5˚ 150 6TW5606TW socket x 160mm BS EN 1401 socket

D/S Bend – 87.5˚ 150 6TW561

225 9TW561

300 12TW561

D/S Bend – 45˚ 150 6TW563

225 9TW563

300 12TW563

D/S Bend – 30˚ 150 6TW566

225 9TW566

300 12TW566

D/S Bend – 15˚ 150 6TW567

225 9TW567

300 12TW567

Product Details – Bends

Short Radius Bends Nominal ID Part NumberSingle Socket

S/S Bend – 87.5˚ 375 375TW161

450 450TW161 ◗

500 500TW161 ◗

600 600TW161

S/S Bend – 45˚ 375 375TW163

450 450TW163

500 500TW163 ◗

600 600TW163

S/S Bend – 30˚ 375 375TW166

450 450TW166

500 500TW166 ◗

600 600TW166 ◗

S/S Bend – 15˚ 375 375TW167 ◗

450 450TW167 ◗

500 500TW167 ◗

600 600TW167 ◗

Ring Seals Nominal ID Part Number

Ring Seal 100 4TW117

TwinWall Socket 150 6TW117

225 9TW117

300 12TW117

375 375TW117

450 450TW117

500 500TW117

600 600TW117


Product Details – Ring Seals

12TW561 illustrated

D/S Short Radius Bends

12TW563 illustrated

12TW566 illustrated

12TW567 illustrated

www.wavin.co.uk

TWINWALL DRAINAGE SYSTEMBends ■ Ring Seals ■ Junctions ■ End Caps


Product details

9



Product Details – Junctions

12TW213 illustrated

Equal Junction

12TW237 illustrated

Unequal Junction

Equal Junctions Nominal ID Part Number

D/S Junction – 90˚ 150 6TW193

S/S Junction – 90˚ 375 375TW375X90

to TW Spigot 450 450TW450X90

500 500TW500X90

600 600TW600X90

Equal Junctions Nominal ID Part Number

D/S Junction – 45˚ 150 6TW213

to TW Spigot 225 9TW213

300 12TW213

S/S Junction – 45˚ 375 375TW375X45 ◗

to TW Spigot 450 450TW450X45 ◗

500 500TW500X45 ◗

600 600TW600X45 ◗

Description Nominal ID Part Number

TwinWall End Cap 100 4TW750150 6TW750225 9TW750300375450500600

Unequal Junctions Nominal ID Part Number

D/S Junction – 45˚ 225 x 150 9TW227

to TW Spigot 300 x 150 12TW237

300 x 225 12TW240

S/S Junction – 45˚ 375 x 225 375TW225X45

to TW Spigot 375 x 300 375TW300X45 ◗

450 x 150 450TW150X45 ◗

450 x 225 450TW225X45

450 x 300 450TW300X45 ◗

450 x 375 450TW375X45 ◗

500 x 150 500TW150X45 ◗

500 x 225 500TW225X45 ◗

500 x 300 500TW300X45 ◗

500 x 375 500TW375X45 ◗

500 x 450 500TW450X45 ◗

600 x 150 600TW150X45

600 x 225 600TW225X45 ◗

600 x 300 600TW300X45 ◗

600 x 375 600TW375X45 ◗

600 x 450 600TW450X45 ◗

600 x 500 600TW500X45 ◗

Unequal Junctions Nominal ID Part Number

S/S Junction – 90˚ 375 x 150 375TW150X90

to TW Spigot 375 x 225 375TW225X90 ◗

450 x 150 450TW150X90 ◗

450 x 225 450TW225X90 ◗

500 x 150 500TW150X90 ◗

600 x 150 600TW150X90

Product Details – End Caps

12TW750375TW750450TW750500TW750600TW750




[email protected]


Product Details

10

Please note: Connection of the above Inspection Chamber Bases to the TwinWall system is via the S/S adaptor 6TW145 (see page 7 for details)

Please note: Connection of the above Manhole Bases to the TwinWall system is via the D/S Adaptors 6TW148 or 9TW148 (see page 7 for details)

Product Details – Non-entry Inspection Chamber

Non-entry Nominal ID Part NumberInspection Chamber (mm)

Polypropylene • 4D943Cover & Frame

Square cover and frame, suitable for use with foot traffic only. When surrounded by a concrete plinth can be used in situations with loading up to 50kN (5.0 Tonnes), ie domestic driveways. 450mm opening size for use to depths of upto 1.2m.

Polypropylene • 6D931Cover & Frame

Square cover and frame with 350mm Restrictor Ring, suitablefor use with foot traffic only. When surrounded by a concreteplinth can be used in situationswith loading up to 50kN (5.0 Tonnes), ie domestic driveways. For use at depths greater than 1.2m.

InspectionChamber Shaft

3m effective length 500 6D9381.5m effective length 500 6D934

Non-entry Nominal ID Part NumberInspection Chamber Bases (mm)

D/S Unequal 150 6UR937Inspection Chamber Base

150mm straight main channel with four 110mm (2 x 45˚ and 2 x 90˚) right/left hand branch entries. Supplied with 3 blank-offplugs for use in unused side entries.

D/S Equal Inspection 150 6UR936Chamber Base

150mm straight main channel with two 150mm x 90˚ right/left hand branch entries. Supplied with 1 blank-off plug for use in unused side entries.

Manhole Bases Nominal ID Part Number

P/E Unequal 150 x 110 6UR875Manhole Base 225 x 150 9UR878

150mm or 225mm straight main channel with four 110mm or 150mm (2 x 45˚ and 2 x 90˚) right/left hand branch entries supplied with all inlets and outlets sealed

P/E Equal 150 6UR876Manhole Base 225 9UR877

150mm or 225mm straight main channel with either four 150mm (2x 45˚ and 2 x 90˚) right/left hand branch entries or two 225mm (2 x 90˚) right/left hand branch entries supplied with all inlets and outlets sealed

Product Details – Manhole Bases

Road Gullies Nominal ID Part Number

P/E Trapped 450 6TW650Road Gully

450mm dia x 900mm deep x 178mm spigot

P/E Trapped 450 6TW651Road Gully

450mm dia x 750mm deep x 178mm spigot

Product Details – Road Gullies

NIC Shaft

6D938 illustrated6D931 illustrated

NIC Cover and Frame

6TW650 illustrated

Road Gullies

6UR875 illustrated

Unequal Manhole Base

6UR936 illustrated

D/S Equal NIC Base

www.wavin.co.uk

TWINWALL DRAINAGE SYSTEMCase studies n Technical n Further Information


Technical Assistance n Further Information

11

WAVIN ONLINEThe complete OSMA product catalogue, together with design and

installation guidance, is also available online at: www.wavin.co.uk

All literature can be downloaded via the searchable PDF library at

www.wavinpdfs.co.uk

Wavin images can be downloaded at different resolutions from

www.wavinimages.co.uk

To request a copy of any item(s) of current

literature, please contact:

LITERATURE REQUESTSTel: 01249 766333Fax: 01249 766332Email: [email protected]



Technical Assistance - Further Information

Contents

OSMA TwinWall Surface and Stormwater

drainage System is backed by Wavin’s

comprehensive technical advisory service.

This is available to provide expert assis-

tance at every stage of a project,

from planning and product selection to

installation and maintenance.

Services include:

Full technical literature, including:

- System Product Guides

- Design and Installation Guides

- Trade Price Lists

Contact Wavin Technical Design

Department for prompt assistance:

TECHNICAL DESIGNTel: 01249 766655Fax: 01249 766653Email: [email protected]

Technical Adviceand Assistance Further Information

TWINWALL SURFACE AND STORMWATERDRAINAGE SYSTEM The following related publication is available for OSMA TwinWall

Surface and Stormwater drainage systems:

Trade Price List

ASSOCIATED OSMA SYSTEMSOSMA systems are fully integrated to provide a total

solution for above and below ground drainage,

plumbing and heating. Contact Wavin Technical

Design Department for further details regarding:

OSMA Rainwater systems

OSMA Soil & Waste systems

OSMA Flexible Plumbing systems

OSMA Underfloor Heating systems

OSMA Below Ground Drainage

systems

OSMA Water Management

systems

OSMA Ducting systems

OSMA Pressure Pipes

for Water

OSMA Pressure Pipes

for Gas

Wavin Plastics LimitedParsonage Way Chippenham Wiltshire SN15 5PN

Tel: 01249 766600Fax: 01249 443286

Email: [email protected]

All OSMA systems are backed by fulltechnical literature and project support.See inside back cover for details.

Wavin Plastics Limited operates a programme of continuous product development, and therefore reserves the right to modify or amend the specification of their products without notice. All information in this publication is given ingood faith, and believed to be correct at the time of going to press. However, no responsibility can be accepted forany errors, omissions or incorrect assumptions. Users should satisfy themselves that products are suitable for thepurpose and application intended.

ISO 9001:2000

TwinWallSurface & Storm Water Drainage System

Product andInstallation Guide

Meeting your needsOSMA Below Ground systems, developed by Wavin PlasticsLimited, form part of a comprehensive range of plastic systemsto provide intelligent solutions for all building, construction and utili-ties projects.

These include:

Above Ground ProjectsOSMA Rainwater systems

OSMA Soil & Waste systems

Plumbing & Heating ProjectsOSMA Flexible Plumbing systems

OSMA Underfloor Heating systems

Below Ground ProjectsOSMA Below Ground Drainage systems

OSMA Water Management systems

OSMA Ducting systems

Pressure Pipe ProjectsOSMA Pressure Pipes for Water

OSMA Pressure Pipes for Gas

www.wavin.co.uk

TW20

3