PVCu soil & waste design & installation
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Soil & Waste Design & installation marley.co.uk MARLEY Akatherm HDPE |

Innovation & Expertise Marley Soil & Waste systems Marley Plumbing & Drainage offer a comprehensive range of soil and waste systems. Available with a variety of jointing methods, Marley products are manufactured to exacting UK and European standards and are designed for use on commercial projects as well as housing developments. Product specification information This guide contains design and installation information for the Marley PVCu soil & waste range. Design and installation guides are also available for Marley Akatherm HDPE drainage and dBlue acoustic soil. Product specification...

PVCu soil & waste systems 88½° bend KB2 Commercial applications Bottle trap WBA4W Roof terminal SV42 ●● 2mm, 110 & 160mm push-fit and solvent 8 weld soil systems incorporating socketed and plain ended pipe Weathering slate SAS45 Marley Akatherm HDPE Pipe clip SC45 ●● 10mm WC connectors for all BS WC pans. 1 Available with solvent weld or push-fit joints. Pipe KP204 Pipe SL403 ●● 10mm WC manifold system allows ranges 1 of toilets to be connected horizontally. Ideal for commercial applications. The Marley Akatherm HDPE drainage range is certified to BS EN 1519: 2000 (licence number KM 545820)...

The Marley soil & waste range offers an extensive choice of standard fittings for commercial and domestic projects. Pictured is a selection of key components within the range. Product specification information on the PVCu, HDPE drainage and dBlue acoustic soil ranges is available as a separate document. All documentation can be downloaded from marley.co.uk The collar boss offers the flexibility of 4 top and 4 side entries, allowing multiple inlet connections. Specifically designed to prevent cross-flow and to allow multiple low level bath or shower waste pipes to be connected to the stack...

Sanitary pipework design All sanitary pipework systems should be designed to satisfy the following regulations and standards where applicable. • The Building Regulations 2010: Approved Document H, Section 1. • The Building Standards Technical Handbook (Scotland) 2010: Part M. • The Building Regulations (Northern Ireland) 2000, Technical Handbook N. Regular consultation is essential between Architects and Plumbing Engineers throughout the building design stage as the careful arrangement of kitchen and bathroom appliances will simplify the final sanitary pipework layout. This will help to...

Design Stub stacks Offsets in the wet portion of a discharge stack should be avoided wherever possible but where they have to be fitted a large radius or two 45° bends should be used to create each change of direction. Offsets in lightly loaded stacks up to three storeys high do not require offset venting but on multi-storey buildings this may be necessary depending on the loading of the stack and the numbers of floors above the offset. The principles previously described for bends and branches at the base of a stack should also be applied. An unventilated stub stack terminated with an...

Combined branch waste A combined branch waste is often used to connect a bath and/or shower and basin to the discharge stack as this allows waste pipework to be neatly concealed in a low level duct. Where this technique is adopted a 45° entry tee must be used to ensure the basin discharge is swept in the direction of flow towards the stack. The minimum distance between the bath or shower and basin connection should not be less than 500mm and it is recommended that an anti-syphon bottle trap is fitted to the basin or a vent provided to protect the appliance from It is recommended that the...

Durgo air admittance valve The Durgo valve is designed to reduce the number of ventilating pipes and subsequent roof penetrations in domestic, commercial and public buildings. Suitable for use in sanitary pipework systems up to ten storeys high, the valve must be fitted in a vertical position above the flood level of the highest appliance connecting to the stack. Valves should be installed within the building in a ventilated duct or roof space where there is no risk of freezing and must be accessible for inspection and testing. The 50, 82 and 110mm size valves have been assessed by the...

Installation data Jointing techniques The ring seal has been successfully employed as the principal method of jointing large diameter PVCu pipes and fittings since their introduction over thirty years ago. This particular technique has proved extremely reliable as the joint can accommodate thermal movement that will occur as a result of temperature variations. An expansion gap of between 5-1 Omm should be allowed within each ring seal socket as each full length of pipe is installed and fixed using socket and barrel pipe clips. Solvent weld jointing is also widely used and many components in...

Installation data Boss branches The Marley range of five boss branches are designed to allow multiple waste pipe connections to be made to the discharge stack from different directions. Four different side entry combinations are possible together with a rear if required. Staggered waste pipe connections, directly opposite are not permitted as cross-flow could occur. Boss pipes, boss connectors and strap-on bosses fitted with multi-fit T ring seals are suitable for use with PVCc or ABS waste systems to BS EN 1451-1 and metric size copper to Un-perforated boss upstands on boss pipes, branches...

Installation data Up to six WCs can be connected to a soil stack using the WC manifold system and a single branch connection. By using a double branch connection, an additional six WCs can be connected. The table, right, details the angles of the manifolds for this installation. ANGLE OF MANIFOLD BRANCH 1. Select the adjustable bend angle required from the above diagram according to the WC position. Cut the bend with a hacksaw, removing the unwanted portion. File away any rough edges from the face of the fitting and wipe clean the bend and branch, with a dry cloth. Before jointing, the bend...