The plastic pipes used in the water supply network of our country are mainly PVC tubes. The application of PE pipe relatively late, is relatively small. In the past ten years, with the development and application of PE pipes in the European water supply industry, the PE pipeline has begun to attract people's attention. Especially recently, PVC has been the pressure of environmental protection, the content of PVC in Pb and CD will exceed the standard, all these make people pay more attention to pe. But this time, Beijing is at the forefront of the country in the application of PE pipe. Beijing city from the second half of 2003, water supply, gas supply network gradually using environmentally friendly pe.
From the beginning of the 80s of last century, the state vigorously promoted and applied the UPVC tube, and made a series of policies, systems and standards, and accumulated a lot of experience. Up to now, the product standards, testing methods, standards, testing methods and construction technology specifications have been equipped, so as to unify the specifications, sizes and quality indicators of products, and achieve the interchangeability of products. This shows that the development of PVC water supply pipeline has entered a mature stage, and the product quality and construction quality have been guaranteed, so as to ensure the effectiveness of PVC water supply pipeline.