METHOD FOR JOINING MULTI-LAYERED PIPE

摘要

A method for joining a multi-layered pipe to a coupling, the multi-layered pipe including at least an outer and an inner layer of thermoplastic material and the coupling including a thermoplastic material. The method includes providing a coupling including a recess for receiving an end of a multi-layered pipe, the recess being configured, in use, to permit the coupling to contact the inner and outermost layers of a multi-layered pipe received in the recess. An end of the multi-layered pipe is fit into the recess of the coupling. Heat is introduced to both the coupling sufficient to cause local melting at the interface between the coupling and either the inner layer alone or both the inner and outer layers of the multi-layered pipe.