Introduction of some connection modes of pe water supply pipe

2024-01-29

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Polyethylene pipes and pipes, pipes andpe water supply pipeThere are many ways to connect pipes and fittings, polyethylene pipes and metal pipes, each of which has its own advantages and disadvantages. Users can choose the appropriate connection method according to the pipe diameter, working pressure, and the place of use. The most commonly used connection methods for polyethylene pipelines for urban water supply are: hot melt connection, electric fusion connection, socket flexible connection, flange connection, steel-plastic transition joint connection, etc.

1. Hot melt connection

Hot melt connection is to use a special heating tool to heat the polyethylene pipe or pipe to be connected to melt it, remove the heating tool, apply pressure to melt it, connect the noodles together, and keep the noodles under stable pressure for a period of time, Until the joint cools down, hot melt connection includes hot melt butt joint, hot melt socket connection and hot melt saddle connection.

2. Electrofusion connection

Electrofusion connection is a special electrofusion tube, in which the embedded resistance wire is in close contact with the connection part of the pe water supply pipe material or pipe fittings, and the pe water supply pipe heated by the embedded resistance wire is fused and connected as a whole. Until the joint is cooled, the electrofusion connection can be used to connect different types of polyethylene pipes or pipe tubes with different melt flow rates. The fusion connection can be divided into fusion connection and saddle connection.

3. Flexible connection of socket

Polyethylene socket flexible connection is a new type of connection developed with reference to the principle of cast iron pipe and PVC-U pipe socket flexible connection. PE water supply pipe is welded with a reinforced polyethylene socket at one end of the polyethylene pipe. Socket type soft connection is to insert one end of polyethylene pipe directly into the special socket of pipe or pipe fitting, press and pull the locking ring in the socket, press and seal the rubber sealing ring, and connect the PE water supply pipe material with the pipe.

4. Flange connection

Flanges are mainly used to connect polyethylene pipes and metal pipes or auxiliary equipment such as valves, flow meters, pressure gauges, etc. Flange connections are mainly composed of polyethylene flange connections, steel or aluminum back pressure loose flanges, steel or aluminum flanges, gaskets or sealing rings, bolts and nuts, etc. Flange connection is to tighten bolts and nuts to make the flange connection in close contact with the flange.