Page 127 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)
P. 127

Chapter 2 Common processes and techniques

















                STEP 4 Lubricate the end of the pipe using silicone   STEP 5 Check that the seal is in the correct position
                grease. Do not use liquid soap as this can adversely   in the fitting.
                affect the rubber seal.
















                STEP 6 Push the pipe all the way into the fitting and   STEP 7 Withdraw the pipe 10 mm from the fitting. This is to
                mark the pipe at the end of the fitting using a pencil.  allow for expansion of the pipe. Fittings must be supported
                                                     by a pipe bracket to prevent the fitting from slipping.
                p  Figure 2.36 Making a push-fit joint
                Fittings for PVCu soil/vent and waste pipe installations
                Fittings for PVCu and MuPVC soil/vent and waste pipes are of the same size.
                This means that the two systems are interchangeable. Table 2.28 lists some of
                the more common types of soil pipe fitting.
                  Table 2.28 Common soil pipe fittings
                 90° bends         45° bends         Junctions           Sockets









                 Boss pipes        Strap boss        Access pipes










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        9781510416482.indb   115                                                                                    29/03/19   8:54 PM
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