Walton, van Houten
Polyethylene - Pipes and Pipe Systems # 1988 Bath
Electrofusion fittings have now been widely accepted within the European Gas Industry for jointing polyethylene pipe. with a high potential demand for electrofusion couplers, Wavin applied its plastics process knowledge to develop an efficient and cost effective co-extrusion manufacturing technique. In this method a wire is wrapped around a thin-walled extruded membrane which is subsequently passed through a second die-head, where the outer shell is added. From this "bar stock" couplers are being produced through a number of off-line operations.