More specifically, should stay on the classification of the material, as it is a very important parameter that determines the scope of the fitting.
Earlier, about 10 years ago everyone used only metal fittings: stainless steel, cast iron. Against metal, steel, do not say anything – reliability, resistance to temperature and density of the liquid. But still there are negatives in the form of high prices, great weight, chemical properties.
We’re talking not just about replacing one tube in a small room, we are talking about running water districts, which represents many meters thick pipes. And when you have an old tube to raise and then construct a new – this becomes a real problem. Therefore, an alternative was needed.
Advantages of PVC fittings
Then she came along with the development of polyvinyl chloride. This material has many advantages and is used for the production of many items and fittings that are no exception.
Full text see http://www.warmfloorcenter.com/pvc-fittings.html
