V4 Sourcebook - March 2020

Industrial Grey PVC-U Pipe And Fittings Machines & Tools - Socket Fusion

Machines & Tools - Socket Fusion

Socket Fusion Principles In this form of fusion jointing, which requires heating tools, the pipe end is inserted into the socket of the fitting; no additional material is used. The pipe end and the socket are heated to fusion temperature using a heating bush and a heating spigot, respectively, and are then pushed together.

Socket fusion Preparation:

 Right angle cutting of pipe  Peel and bevel using proper tool to ensure, calibration of the pipe end, removal of oxidation layer, indication of fusion depth

Socket Fusion Process Overview:  Press fitting and pipe on spigot and bush  Push firmly and without twisting  Observe penetration depth  Remove fitting and pipe carefully  Push fitting and pipe quickly together without twisting  Align and hold as long as the recommended cooling time lasts  Do not pressure test until 1 hour after fusion

288 PAAS Source Book

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