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At the welding performance level, PPR water pipe flanging is more round
Release time:
2023/3/6 9:42:10 |
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At this stage, the water supply and drainage system of home decoration is to use plastic hose to replace galvanized pipe, but the plastic hose is not only PPR pipe, but also PE pipe. Then why home decoration generally choose PPR pipe rather than PE pipe?
First, elastic mold: harm the stiffness and flexibility of the pipeline.
PPR water pipe material is poly (propylene), the elastic mold is 850MPa, the stiffness is good and the flexibility is not enough; PE water pipe selection of medium density polyethylene, elastic mold only 550MPa up and down, good toughness, stiffness is not enough. PE water pipe used in building water supply industry, but bending, very easy to bend, pipe fittings are not good. Compared with PPR's water pipes, the problem is less pronounced.
Two, thermal conductivity: harm the heat insulation and insulation performance of the pipeline.
The thermal conductivity of PPR water pipe is 0.24, and that of pe water pipe is 0.42, which is nearly twice higher. We all know that the lower the thermal conductivity, the better the water pipe insulation performance.
If the PE pipe to the ground heating, may give full play to its advantages. Good heat discharge means that the heat dissipation effect is stronger, but it will become its defect when used in hot water pipe. Good heat removal will cause higher heat damage, the tube surface temperature is higher, very easy to burn hands. In this case, the application of PPR tube is more effective.
Three, welding performance: harm pipeline installation difficulty coefficient.
At the welding performance level, PPR water pipe flanging is relatively round, while pe water pipe flanging is irregular, which is very easy to block; Welding environment temperature is also different, PPR water pipe 260, pe water pipe 230. PPR water pipe welding machine in the market is very easy to overweld, resulting in water seepage. In addition, because PE raw materials are very easy to air oxidation, common tools must be used to shave the surface oxidation layer before welding, otherwise it can not form a true detailed pipe, the pipe is very easy to seepage water.
It can be known that although PPR water pipe and PE water pipe can be heated and welded, but PPR water pipe is easier to practical operation, engineering construction is more convenient, which is also the main reason for the application of PPR water pipe in home decoration. |
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