Defined as follows:
PPR is a random polypropylene synthesized from polypropylene (PP) and polyethylene (PE) by gas phase method. Its structural feature is that PE molecules are randomly connected between PP molecules, and its molecular weight ranges from 300,000 to 800,000. PPR pipe, also known as random polypropylene pipe, is a plastic pipe product developed and applied in the late 1980s and early 1990s.
With its excellent performance and wide application fields, it has occupied a place in the plastic pipe market and is recognized as a green environmental protection product. However, in the market operation in recent years, the above analysis of the quality problems of PPR plastic pipes shows that there are many problems in the PPR pipe market, which greatly restricts the benign development of PPR pipes.
Precautions:
1, PPR hot water pipe can replace cold water pipe, but PPR cold water pipe cannot replace hot water pipe.
2. When the room temperature of PPR tube is lower than 10, the brittleness of PPR tube will increase. Secondly, the water temperature in PPR water pipe should not be lower than 0℃, otherwise the water will easily freeze and burst.
3. Pay attention to distinguish between hot and cold water pipes when purchasing.