PPR pipe material and ppb material distinction

PPR pipe material and ppb material distinction
For the real PPR pipe, it is not only the use of PPR material, but also the use of PPB material production, but the ppb material is the production of cold water pipes, PPR material is the production of hot water pipes.
PP material is a kind of ethylene glycol copolymer PP-B, which is one percent to four percent, which is an irregular copolymer PP-R or a higher ratio of ethylene content. The strength of PP increases with the increase of ethylene content.
With the increase of ethylene content, the softening temperature of PP materials will also decrease, resulting in PP-B material load softening temperature usually at 90 degrees Celsius, if the PP-B material for hot water pipe, the use of a certain period of time after the pipe will occur irreversible thermal expansion, and even lead to bending deformation. Buried pipe wall arch cracking. The PPR VEKA softening temperature above one hundred and thirty degrees Celsius, the normal family in the use of the process is not obvious bending deformation, we can rest assured that long-term use. So hot water pipes must use PPR material to produce.

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