Is home tap water iron or plastic good?
As a water pipe, use after a few years, produced a lot of rust in the tube, the outflow of water not only pollute the sanitary ware, and mixed with smooth inner wall corrosion caused by bacteria, heavy metal content in the water is too high, serious harm to human health (the state has been prohibited when drinking water).
In the past, pipes used for water supply were mainly cast iron pipes. Outside the main use sand mold cast iron pipe, indoor use is galvanized iron pipe. However, due to the use of a few years later, it is easy to produce a large number of rust, bacteria, and seriously endanger the health of the human body. The state has set out in June 1, 2000 to eliminate sand casting pipe fittings and cold galvanized iron pipes, and gradually limit the use of hot cast iron pipes, and promote the use of aluminum plastic composite pipes, new plastic pipes and so on.
The water pipe is the water supply pipeline, the modern decoration water pipe is uses the burying wall type construction, the water pipe classification has three kinds, the first kind is the metal pipe, such as the hot cast iron pipe, the copper pipe, the stainless steel tube and so on inside the lining plastic. The second kind is the plastic compound metal pipe, such as plastic compound steel tube, aluminum plastic composite pipe, etc.. The third category is plastic pipes, such as PB and PP-R.
UPVC tube: in fact, is a plastic tube, the interface is generally glued with glue, UPVC pipe antifreeze and heat resistance are not good. So hot and cold water pipes are rarely used, PVC pipe for wire pipe and sewage pipe, science and technology that can make PVC more chemical additives butylphthalide soft, very high on the human body kidney, liver, testis, cause cancer, kidney damage, damage to the human body function reconstruction system, the influence of the development of (only with cold water don't use hot water, and winter and brittle).
