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Brief analysis of the selection of water supply pipe
When it comes to drinking water, we tend to focus on where it comes from, and very few of us pay attention to what happens to our drinking water all the way from source to home. The quality of drinking water is not just about water sources. The quality of transportation pipes can play a crucial role.
In recent years, various areas actively promote plastic pipes and plastic composite pipes, to replace the quality of drinking water quality of residents galvanized water supply pipe, cast iron pipe, etc., deeply loved by everyone.
It is well known that the water supply system for the whole urban residents can be divided into three types: water supply pipes (pipes from the water source to the water plant, and pipes from the water plant to the pipe network), distribution pipes (pipes and pipes from the pipe network to the user's building) and supply pipes (pipes into the user's building).
At present, the main pipes used in the water supply network system are cast iron pipes, ductile iron pipes, steel pipes, galvanized steel pipes and reinforced concrete pipes. The application of plastic pipe is not very common, now in national standard only to hard polyvinyl chloride pipe (UPVC pipe) and high density polyethylene pipe (hdPE pipe) made a regulation. However, in the water supply system, there are many plastic pipes and plastic composite pipes, including UPVC pipe, PE pipe, cross-linked high-density polyethylene (HDPE-X) pipe, PP pipe, PB pipe, ABS pipe, metal lining plastic pipe and aluminum-plastic composite pipe.
With the development of science and technology, PE performance has been greatly improved for more than 10 years. Hdpe pipe has been widely used in IS012162 and ISO plastic water supply systems due to its excellent physical and mechanical properties. PE pipe non-toxic, corrosion resistance, high flexibility, low temperature resistance, convenient installation, can be used in a variety of fusion welding connection, the overall sealing is excellent.
In recent years, in some industrialized countries in Europe and the United States, the use of PE pipe began to surpass that of UPVC pipe to occupy the first place. Ordinary PE pipe has poor temperature resistance and cannot be used as a hot water pipe, so its application is limited. Due to its excellent mechanical properties and economy, UPVC pipe has a strong advantage in use as a water supply pipe.
