There are numerous joining techniques and processes for polyethylene (PE) pipes. We at PF Schweißtechnologie GmbH manufacture controllers and machines that support electrofusion (HM) and butt welding (HS).
Both processes require special equipment and machines to successfully join two pipes together. The basic difference between the electrofusion welding process and the butt welding technique is that electrofusion welding uses fittings (couplers / saddles) which become an integral part of the PE pipe after successful welding. No additional fittings are required for the butt welding technique. Here the pipes are connected directly to each other.
To find out more about the welding processes, click on the following links.