Plastic The pipeline is usually composed of plastic pipe, pipe fittings of two parts, with the ratio of 100: (10 - 12). Also called plastic pipe fittings, refers to the pipe and pipe, pipe and instrument, equipment and valves connected pipe fittings. Including all kinds of socket connection sleeve, two links, three links, elbow, joint (oil), nipple, expansion joints, different diameter pipe, seal etc..

   At present, China's plastic pipe has been widely used, but the plastic pipe matching is still relatively backward, the domestic production of pipe fittings specifications, and still can not adapt to the pipe production, serialization and standardization also keep up with the pace of development of the pipe, the pipe with no facilities, promote the use of such it will restrict the plastic pipe.

   The general pipe manufacturing piece by injection molding or welding molding, glass fiber reinforced plastic pipe connector commonly used hand paste or hot pressing. The flange can be made of hard polyvinyl chloride sheet by mechanical processing, for large rigid PVC pipe. Pipe fittings in the pipe, bearing the same from the fluid in the pipe and the pipe outer environment of mechanical and chemical effects and therefore require pipes, the strength of the fitting performance should be similar to the pipe itself.

   Plastic The quality of pipeline and supporting the pipe connecting parts are closely related, but the connection pipe is an important factor affecting the quality of pipe connection. Widely used with elastic sealing ring socket type connector for connecting rigid PVC pipe, this connection is detachable, and very reliable operation in a certain pressure range, the pipeline can be disassembled for repeated use, has been internationally recognized, is a construction method worthy of reference.