Cut the pipe to the vertical position of the pipe with an electric scraper and remove the oxide layer on the pipe surface.

2. Mark the pipe surface with marking pen according to the socket depth of electric melting pipe fittings.
3. Insert the pipe into the electrofusion pipe fitting until the depth of the identification line. After installation, the axis line of the pipe coincides with the electrofusion pipe fitting.
4. Fix the pipes and pipe fittings through clamps to prevent dislocation and looseness during welding.