HDPE electrofusion fittings are high-density polyethylene fittings that can be joined using the high temperature generated by an electric current. These fittings are primarily used in polyethylene piping systems to connect PE pipes of different grades and wall thicknesses through electrofusion. The color of the electrofusion fittings does not affect compatibility, and the connection reliability is high. The joint strength must be greater than the strength of the pipe itself to ensure that no leakage of the medium occurs during the connection process.