Smart Heat Induction Fusion Joining of PE Gas Pipe - Results of PRI sponsored Project [PE]

In 1989, a project was launched by the Gas Research Institute to develop a method of pipe joining and repair that utilized a new constant-temperature heating technology. In the project, prototype fittings with molded-in wire heater structures were inductively heated to achieve a pipe fusion joint that passed all of the standard performance tests. Since there is no risk of the heaters overheating the plastic resin, it is possible to optomize the fusion process and increase the tolerance of craftsmanship and environmental conditions. The elimination of electrodes has the potential of reducing the manufacturing cost of the fittings.