1. When connecting double-layer electric melting pipe fittings, the construction shall be carried out when the outdoor temperature is low or near the lowest. Because plastic pipes have the characteristics of thermal expansion and cold contraction, when the temperature is the lowest in a day, it is also the minimum state of the pipe. It will be very easy to connect electric melting pipe fittings here.
2. During the connection of double-layer electric melting pipe fittings, ensure that the electric melting pipe fittings and their corresponding connection parts, sockets, seals and other accessories are clean and free of soil, water and other impurities. If there is dirt on it, it must be wiped with a wet towel before connection to avoid affecting the welding quality.
3. When it is necessary to use electric fusion flange for connection, the looper steel flange, bolts and other metal items must be subject to anti-corrosion treatment according to the site soil and the corresponding national standards to avoid rusting and affecting the use quality.
4. During the connection of double-layer electric melting pipe fittings, attention should also be paid to placing the observation hole of the pipe fittings right above or on the side of the pipe fittings to facilitate observation during welding.
5. The connected electric melting pipe fittings shall be marked on both sides to prevent the pipe fittings from falling off and shifting in the future connection process, so as to facilitate the inspection of whether the electric melting pipe fittings are in the central area during welding.
