PIPE COUPLING FOR MULTILAYER PIPES

摘要

A pipe coupling (10) for multilayer pipes comprises a body adapted for insertion into a pipe. The body has a through passage extending inwardly from at least two mouths (11, 12) and on its outer surface a groove (22, 23) for receiving a sealing element (24, 25) for forming a fluid-tight seal between an internal surface of the multilayer pipe and the body. Inwardly of the groove, the cross sectional area of the through passage gradually increases. This reduces the pressure drop through the pipe coupling. The pipe coupling may be formed from two separate parts each injection moulded around tapering cores then attached together.