>>>How to Select and Install PPR Water Pipes
Polypropylene (PP-R) pipes and fittings for random copolymers have become “hot spots†in the application of hot and cold water, drinking water, and heating systems in buildings; PP-R pipes that are qualified for production must be raw and extruded. Out equipment has strict requirements. There are three kinds of PP raw materials that can produce hot and cold water pipes:
1) Homopolymerization PP is prepared by adding a certain amount of toughening auxiliaries by blending and granulating. This raw material is called PP-H.
2) Copolymerization of PP and PE blocks, this material is called PP-B.
3) Using advanced gas-phase copolymerization technology, PE polymerizes randomly and uniformly in the molecular chain of PP. This material is called PP-R. The Screw barrel of the extruder used to produce the PP-R plastic tube is accurately calculated using an advanced computer model to determine the pressure distribution and melting rate of each section, so that it has a good low-temperature plasticizing ability. A conventional single screw extruder cannot be used to produce PP-R tubes.
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