December 12, 2022
Common pe water pipe connection methods：
1. Hot-melt butt joint. The hot-melt butt joint of PE water supply pipe is to use a hot-melt butt welding machine to heat the pipe end. After the pipe end is melted, it will be glued quickly, maintain a certain pressure, and achieve the purpose of welding after cooling.
2. Electrofusion connection. The electrofusion connection of PE water supply pipe is to put the electrofusion pipe fittings on the pipes and pipe fittings, and heat the resistance wire embedded in the inner surface of the electrofusion pipe fittings through the electric fusion welding machine, and the heat generated will make the inner surface of the electrofusion pipe fittings and the The outer surface of the socketed pipe is melted and integrated to achieve the purpose of welding.
3. Saddle docking. Connecting PE water supply pipes often encounters the problem of branching the main pipe according to actual needs during the application process. Traditional pipes must first cut off a section of the main pipe, and then install a tee to complete the branching. The construction is very cumbersome. For PE pipes, saddle-shaped butt joints are used, that is, saddle-shaped butt welding machines are used to directly connect a saddle-shaped pipe fitting to the main pipe to complete the branching of the main pipe. For main pipe taps with nominal outer diameter less than DN200, electric fusion saddle bypass or straight-through can also be used to carry out under the condition of water stop or non-stop water supply.
4. Steel-plastic flange connection. When connecting PE water supply pipes to steel pipes and valves, steel-plastic flanges should be used: PE pipe ends and corresponding plastic support rings can be connected by hot-melt butt joints, and the connection between steel pipe ends and metal flanges should comply with the corresponding According to the steel pipe welding regulations, the connection between the PE pipe and the steel pipe can be completed by using the flange piece.
