The PPR pipe divides the cold water pipe from the hot water pipe. The difference is that the cold water pipe has a blue marking line and the hot water pipe is a red line.
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Generally, in the hydropower reform, the original water pipes will be replaced. Home improvement companies and merchants all use hot water pipes when they are advising the fitters to install PPR pipes. Even hot water pipes are used where cold water flows through. Their argument is that because the technical parameters of hot water pipes are higher than those of cold water pipes, and the prices are not much different, hot water pipes are used for waterway reconstruction. Another fact is that even if you want to buy cold water pipes, it is difficult to buy them on the market because cold water pipes only supply the tooling market and do not supply the home improvement market.
Pipe diameter
The diameter of the PPR pipe can be from 16mm to 160mm, and the two types used in the home improvement are 20mm and 25mm (commonly referred to as 4 and 6 ine respectively), and 4 of them are used more.
Wall thickness
There are 2.8mm, 3.4mm two. Dealers will say that the latter's pressure capacity is greater than the former, and some people do not think so, since manufacturers produce 2.8 thick, it is certainly after a lot of experimental certification, and its water pressure can withstand the national standard, since 2.8 The reason why it can be done to produce 3.4 again; the same time, the smaller the wall diameter, the smaller the water flow will also become smaller.
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