With the develop of economy and social, people become more and more abundance. Therefore, people have higher requirements to living conditions, especially the drinking water. The water supply system of municipal government is the important link that deliver the living water to thousands of families. Thus the working condition of the system directly influence the safe water of people. Therefore, we have to choose high quality pipes according to the reality that the present pipe network ages. As for the water supply pipe, first it must be safe. High cleanliness and pressure resistance are also important.
As an important part of the water supply system, municipal water supply pipe network is to transfer, store, adjust and distribute water. In the development of city, the zinc coated steel pipe was the top position for decades. It's widely used in the water network system. With the time goes on, the pipe rusts and the scale appears inside. When turn on the pipe which not be used for long time, there will be terrible "yellow water". This because there is iron rust in it.
In fact, iron element is necessary to human. However, the content can’t be more than 0.3mg/L. To distinguish if the iron content is out of limits, we can look the color and smell it. But once the content out of limits, it will influence the taste of water. What's more, the germs grow on the inner wall, so drinking such water will damage to the health.
Besides the above disadvantages, zinc coated pipe is not that durable and has bad corrosion resistance. Therefore, it often perforates and leaks. The thermal expansion and contraction caused by diurnal temperature variation also cause pipe network burst.
Con such occasion, the PE pipe born at the right moment. The application of PE pipe in water supply system increases rapidly, especially recent years. In the next piece, let me introduce you why PE pipe can replace the metal pipe.