1. Cut the pipe vertically, and remove the surface oxide layer with a scraper at the pipe position of the socket to the electric melting pipe fitting.
2. Mark the pipe surface with a marking pen according to the socket depth of electric melting pipe fittings.
3. Insert the pipe into the electrofusion pipe fitting to the depth of the marking line. After installation, the axial line of the pipe is coincident with the electrofusion pipe fitting.
4. Fix pipes and pipe fittings with clamps to prevent dislocation and looseness during welding.
