Mixed use of plastic pipe and steel pipe

    I found that there is the mixed use of plastic pipe and steel pipe like seamless steel pipe in my bathroom last night. I was wondering why. And today I would like to figure out some answers for it.

    First of all, we can notice that in some sub-region like the outlet, customers would adopt the steel pipe and the plastic pipe just gets the function of transportation at a house. And there are steel pipes like seamless steel pipe or ERW steel pipe outside the house. Why? According to the pressure test, we would figure out that steel pipe has a good balance and can hold on the water pressure better than plastic pipes. What’s more, it can handle the problem of thermal expansion and contraction especially at summer and winter. So there are steel pipes everywhere outside the house.

    Second, we can just use the steel pipe when we heard the first situation. Because steel pipe can endure high temperature test and high pressure purpose. This is why steel pipe is essential in our daily life.

    Whether you'll choose plastic pipe or steel pipe isn't depend on your prefer, but on what's the purpose of those steel pipe.

    http://www.xysteelpipe.com/info/Mixed-use-of-plastic-pipe-and-steel-pipe-498-1.htm

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