1. Compared with metal pipes, PP-R pipes have lower hardness and lower rigidity. They should be protected during transportation and construction to avoid mechanical damage caused by inappropriate external forces. Mark the location of the pipeline after the concealed application, so as not to damage the pipeline during the second decoration.
The cross-linking agent in the PEX pipe cracks the original linear molecular structure to form a graft material, and then forms a three-dimensional network structure.
1. The PPR Female Threaded Union has high strength and good ductility, which can give full play to the strength and ductility of the steel base material. The PPR Female Threaded Union performance meets the JGJ107-2003 grade I joint standard and can be broken from the base material.
When selecting PPR pipes, we should pay attention to the following three points: 1. Pay attention to the determination of the overall use coefficient C (i.e. safety factor) of the PPR pipe.
The main raw material for the production of PEX pipes is HDPE, as well as initiators, cross-linking agents, catalysts and other auxiliary agents. If there are special requirements, other modifiers can also be added.
PPR male threaded union refer to pipe connections with threads, which are the most common type of pipe fittings in industry and life. PPR male threaded union make the connection of pipelines simpler and easier to disassemble and replace, which greatly saves the cost of pipeline connections.