Product and Installation Guide

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Drainage System Product and Installation Guide FOR

1 Uniclass CI/SfB Feb 2005 L7314:P71 (52.5) In6 TW203 EPIC J3413:X71 TwinWall Surface & Storm Water Drainage System Product and Installation Guide FOR COMMERCIAL AND INDUSTRIAL APPLICATIONS Intelligent Solutions for Below Ground Projects

Introduction to OSMA - from Wavin OSMA From Wavin OSMA, from Wavin Plastics Limited, is the leading name in plastic systems for building, construction and utilities.

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

2 Introduction to OSMA - from Wavin OSMA From Wavin 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 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. 2 CUSTOMER SERVICES TECHNICAL ENQUIRIES TECHNICAL FAX info@wavin.co.uk

Contents Contents Range Introduction 4 System Overview 4 Application 5 System Benefits 5 Quality Assurance 5 Product Details

Gullies 10 Manhole Bases 10 Advice and Technical Assistance 11 Further information The following related publication is

Literature requests Tel: 01249 766333 Fax: 01249 766332 literature@wavin.co.

3 Contents Contents Range Introduction 4 System Overview 4 Application 5 System Benefits 5 Quality Assurance 5 Product Details 6 Pipe 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 Advice and Technical Assistance 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: Fax: literature@wavin.co.uk TWINWALL SURFACE AND STORMWATER DRAINAGE SYSTEM Product & Installation Guide TWINWALL DRAINAGE SYSTEM Introduction to OSMA from Wavin Contents 3

Range Introduction System overview Range Introduction TwinWall Surface and Stormwater Drainage system TwinWall is a cost effective pipe system intended for use as a direct alternative to all

4 Range Introduction System overview Range Introduction TwinWall Surface and Stormwater Drainage 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 1000mm 2 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. System Overview 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. 4 CUSTOMER SERVICES TECHNICAL ENQUIRIES TECHNICAL FAX info@wavin.co.uk

Application Benefits Quality Assurance Application The TwinWall range is designed for use in gravity surface and storm water drainage applications.

Uses Include: Highways Filter Drains, Carrier Drains, Golf Course Land Drainage, Surface Water / Main Culverts, Catchpits, Landfill / Land Reclamation, Methane Gas Venting, Leachate Drainage.

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.

5 Application Benefits Quality Assurance Application 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. System Benefits 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. Quality Assurance 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. TWINWALL SURFACE AND STORMWATER DRAINAGE SYSTEM Product & Installation Guide TWINWALL DRAINAGE SYSTEM Introduction Overview Application Benefits Quality 5

6 Product Details Product Details Pipe Pipe Nominal Part Number No. of Slots Permeable Area Length (m) ID OD Per Dwell mm 2 m -1 P/E Pipe TW076 6 unperforated TW TW TW TW TW TW TW076 6 P/E Pipe TW perforated TW TW TW TW TW TW TW P/E Pipe TW half perforated TW TW TW TW TW TW S/S Pipe TW046 6 unperforated TW TW TW046 6 S/S Pipe TW perforated TW TW TW S/S Pipe TW half perforated TW TW TW Non stock item - Lead time available on request Single Socket Pipe Product Details Couplers Couplers Nominal ID Part Number D/S Pipe Coupler 100 4TW205 for joining TwinWall pipe 150 6TW TW TW TW TW TW TW TW046 illustrated 6 CUSTOMER SERVICES TECHNICAL ENQUIRIES TECHNICAL FAX info@wavin.co.uk

Product Details Product Details Adaptors Couplers Nominal ID Part Number 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

7 Product Details Product Details Adaptors Couplers Nominal ID Part Number 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 S/S Adaptor 150 6TW141 6TW socket x 160mm BS EN 1401 spigot D/S Adaptor 150 6TW142 6TW socket x 160mm BS EN 1401 socket S/S Adaptor 150 6TW144 6UR spigot x 160mm flexible corrugated pipe socket S/S Adaptor 150 6TW145 6UR spigot x 6TW socket S/S Adaptor 150 6TW146 6TW spigot x 160mm flexible corrugated pipe socket Reducer S/S Adaptor Bend TW147 6UR spigot x 6TW socket D/S Adaptor 150 6TW148 UltraRib socket x TwinWall socket D/S Adaptor 225 9TW148 UltraRib socket x TwinWall socket 9TW095 illustrated Product details Reducers Couplers Nominal ID Part Number D/S Level Invert Reducer 150 6TW097 6TW socket x 4TW socket S/S Level Invert Reducer 150 6TW099 6TW spigot x 110mm BS EN 1401 socket S/S Level Invert Reducer 225 9TW095 9TW spigot x 6TW socket S/S Level Invert Reducer TW093 12TW spigot x 9TW socket S/S Level Invert Reducer TW TW spigot x 12TW socket S/S Level Invert Reducer TW TW spigot x 375TW socket S/S Level Invert Reducer TW TW spigot x 450TW socket S/S Level Invert Reducer TW TW spigot x 500TW socket TWINWALL SURFACE AND STORMWATER DRAINAGE SYSTEM Product & Installation Guide TWINWALL DRAINAGE SYSTEM Pipes Couplers Adaptors Reducers 7

Product Details Product Details Bends D/S Short Radius Bends Short Radius Bends Nominal ID Part Number Double Socket D/S Bend 87.5 150 6TW560 6TW socket x 160mm BS EN 1401 socket D/S Bend 87.

12TW563 illustrated Short Radius Bends Nominal ID Part Number Single Socket S/S Bend 87.

600TW166 S/S Bend 15 375 375TW167 450 450TW167 500 500TW167 600 600TW167 12TW567 illustrated Non stock item - Lead time available on request Product Details Ring Seals Sealing Rings Wavin TwinWall

8 Product Details Product Details Bends D/S Short Radius Bends Short Radius Bends Nominal ID Part Number Double Socket D/S Bend TW560 6TW socket x 160mm BS EN 1401 socket D/S Bend TW TW TW561 12TW561 illustrated D/S Bend TW TW TW563 D/S Bend TW TW TW566 D/S Bend TW TW TW567 12TW563 illustrated Short Radius Bends Nominal ID Part Number Single Socket S/S Bend TW TW TW TW161 S/S Bend TW TW TW TW163 12TW566 illustrated S/S Bend TW TW TW TW166 S/S Bend TW TW TW TW167 12TW567 illustrated Non stock item - Lead time available on request Product Details Ring Seals 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. Ring Seals Nominal ID Part Number Ring Seal 100 4TW117 TwinWall Socket 150 6TW TW TW TW TW TW TW117 8 CUSTOMER SERVICES TECHNICAL ENQUIRIES TECHNICAL FAX info@wavin.co.uk

Product details Product Details Junctions 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

150 600TW150X90 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

9 Product details Product Details Junctions Equal Junctions Nominal ID Part Number D/S Junction TW193 S/S Junction TW375X90 to TW Spigot TW450X TW500X TW600X90 Unequal Junctions Nominal ID Part Number S/S Junction x TW150X90 to TW Spigot 375 x TW225X x TW150X x TW225X x TW150X x TW150X90 Equal Junctions Nominal ID Part Number D/S Junction TW213 to TW Spigot 225 9TW TW213 S/S Junction TW375X45 to TW Spigot TW450X TW500X TW600X45 Equal Junction 12TW213 illustrated Unequal Junction Unequal Junctions Nominal ID Part Number D/S Junction x 150 9TW227 to TW Spigot 300 x TW x TW240 S/S Junction x TW225X45 to TW Spigot 375 x TW300X x TW150X x TW225X x TW300X x TW375X x TW150X x TW225X x TW300X x TW375X x TW450X x TW150X x TW225X x TW300X x TW375X x TW450X x TW500X45 Non stock item - Lead time available on request 12TW237 illustrated Product Details End Caps Description Nominal ID Part Number TwinWall End Cap 100 4TW TW TW TW TW TW TW TW750 TWINWALL SURFACE AND STORMWATER DRAINAGE SYSTEM Product & Installation Guide TWINWALL DRAINAGE SYSTEM Bends Ring Seals Junctions End Caps 9

Product Details Product Details Non-entry Inspection Chamber Non-entry Nominal ID Part Number Inspection Chamber (mm) Polypropylene 4D943 Cover & Frame Square cover and frame, suitable for use with

Polypropylene 6D931 Cover & Frame Square cover and frame with 350mm Restrictor Ring, suitable for use with foot traffic only.

10 Product Details Product Details Non-entry Inspection Chamber Non-entry Nominal ID Part Number Inspection Chamber (mm) Polypropylene 4D943 Cover & 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 6D931 Cover & Frame Square cover and frame with 350mm Restrictor Ring, 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. For use at depths greater than 1.2m. Inspection Chamber Shaft 3m effective length 500 6D m effective length 500 6D934 Non-entry Nominal ID Part Number Inspection Chamber Bases (mm) D/S Unequal 150 6UR937 Inspection 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-off plugs for use in unused side entries. D/S Equal Inspection 150 6UR936 Chamber 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. 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) D/S Equal NIC Base NIC Cover and Frame NIC Shaft 6D931 illustrated 6D938 illustrated 6UR936 illustrated Product Details Road Gullies Product Details Manhole Bases Road Gullies Nominal ID Part Number P/E Trapped 450 6TW650 Road Gully 450mm dia x 900mm deep x 178mm spigot P/E Trapped 450 6TW651 Road Gully 450mm dia x 750mm deep x 178mm spigot Road Gullies Unequal Manhole Base Manhole Bases Nominal ID Part Number P/E Unequal 150 x 110 6UR875 Manhole Base 225 x 150 9UR mm 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 6UR876 Manhole Base 225 9UR mm 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 6TW650 illustrated 6UR875 illustrated 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) 10 CUSTOMER SERVICES TECHNICAL ENQUIRIES TECHNICAL FAX info@wavin.co.uk

Technical Assistance - Further Information n Technical Advice Contents and Assistance Further Information OSMA TwinWall Surface and Stormwater drainage System is backed by Wavin s comprehensive

11 Technical Assistance - Further Information n Technical Advice Contents and Assistance Further Information OSMA TwinWall Surface and Stormwater drainage System is backed by Wavin s comprehensive technical advisory service. This is available to provide expert assistance 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 DESIGN Tel: Fax: technical.design@wavin.co.uk TWINWALL SURFACE AND STORMWATER DRAINAGE SYSTEM The following related publication is available for OSMA TwinWall Surface and Stormwater drainage systems: Trade Price List ASSOCIATED OSMA SYSTEMS OSMA 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 ONLINE The complete OSMA product catalogue, together with design and installation guidance, is also available online at: To request a copy of any item(s) of current literature, please contact: LITERATURE REQUESTS Tel: Fax: literature@wavin.co.uk All literature can be downloaded via the searchable PDF library at Wavin images can be downloaded at different resolutions from TWINWALL SURFACE AND STORMWATER DRAINAGE SYSTEM Product & Installation Guide TWINWALL DRAINAGE SYSTEM Case studies Technical Further Information n n 11

TwinWall Surface & Storm Water Drainage System Product and Installation Guide Meeting your needs OSMA Below Ground

intelligent solutions for all building, construction and utilities projects.

Flexible Plumbing systems OSMA Underfloor Heating systems Below Ground Projects OSMA Below Ground Drainage systems OSMA

for Gas ISO 9001:2000 All OSMA systems are backed by full technical literature and project support.

Wavin Plastics Limited operates a programme of continuous product development, and therefore reserves the right to

All information in this publication is given in good faith, and believed to be correct at the time of going to press.

12 TwinWall Surface & Storm Water Drainage System Product and Installation Guide Meeting your needs OSMA Below Ground systems, developed by Wavin Plastics Limited, form part of a comprehensive range of plastic systems to provide intelligent solutions for all building, construction and utilities projects. These include: Above Ground Projects OSMA Rainwater systems OSMA Soil & Waste systems Plumbing & Heating Projects OSMA Flexible Plumbing systems OSMA Underfloor Heating systems Below Ground Projects OSMA Below Ground Drainage systems OSMA Water Management systems OSMA Ducting systems Pressure Pipe Projects OSMA Pressure Pipes for Water OSMA Pressure Pipes for Gas ISO 9001:2000 All OSMA systems are backed by full technical 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 in good faith, and believed to be correct at the time of going to press. However, no responsibility can be accepted for any errors, omissions or incorrect assumptions. Users should satisfy themselves that products are suitable for the purpose and application intended. Wavin Plastics Limited Parsonage Way Chippenham Wiltshire SN15 5PN Tel: Fax: info@wavin.co.uk TW203

Product guide. TwinWall. Surface and Stormwater Drainage

Product guide. TwinWall. Surface and Stormwater Drainage Product guide Surface and Stormwater Drainage Contents Introduction 2-3 Product Details 4-12 Jointing 13 General Information 14-15 Notes 16 www.wavin.co.uk Email: technical.design@wavin.co.uk Surface and