What Are Electrofusion Fittings?

Electrofusion fittings are plastic (polyethylene) pipe fittings that are connected by melting the material using the temperature generated by an electric current. Capacity (ampere-hours) is the main parameter; in some low-voltage circuits where voltage requirements are not high, only the ampere-hour rating needs to be specified.

PE (polyethylene) is a series of resins produced using various processes, possessing diverse structures, properties, and applications. It accounts for one-third of the world's synthetic resin production, ranking first. The application of PE pipes began in the 1940s, initially used for telephone line conduits and unpressurized mine drainage (low-density PE pipes). In the mid-1950s, PE pipes were used for water supply (high-density PE pipes). In the mid-1960s, PE pipes began to be used for natural gas transmission (using medium- and high-density PE pipes). PE piping systems have become the second most consumed type of plastic pipe in the world after PVC-U pipes. They are widely used in gas transmission, water supply, sewage disposal, agricultural irrigation, oil fields, mines, chemical industries, and telecommunications.