Electrofusion connection: The electrofusion connection is a special electrofusion pipe fitting with the embedded resistance wire and the connection part of the PE pipe or pipe fittings are in close contact with the energized, and the PE pipe is heated by the embedded resistance wire to make it melt and connect into one until the joint is cooled. Electrofusion connections can be used to connect polyethylene pipes or socket fittings with different types and different melt flow rates. The electrofusion connection is divided into an electrofusion socket connection and an electrofusion saddle type connection.

Socket flexible connection: Polyethylene pipe socket flexible connection is a new type of connection developed with reference to the principle of socket flexible connection of cast iron pipe and polyvinyl chloride pipe (PVC-U), PE pipe is welded at one end of polyethylene pipe with a reinforced polyethylene bearing. The plug-in flexible connection is to insert one end of the polyethylene pipe directly into the special bearing of the pipe or pipe fitting, and the tensile resistance and rubber sealing ring are pressed tightly through the locking ring in the socket, so as to achieve the purpose of connecting PE pipe and pipe fittings.