Is PE plastic pipe durable?

decorating water pipes and replacing gas pipes in residential areas, many people will ask: "Are PE plastic pipes durable?" As a "frequent customer" in the current construction and municipal fields, the durability of PE pipes is not an empty propaganda, but a property that can be landed from the essence of the material to the actual scene. We may wish to take it apart from several key dimensions. The first is the "innate advantage" of PE materials - PE's full name is high-density polyethylene, which has a tight and stable molecular structure and is naturally anti-aging and anti-decomposition. Unlike metal pipes, which are prone to rust and PVC pipes, which are prone to embrittlement. Looking at the corrosion resistance, whether it is the weak acid and alkali of tap water, the microorganisms in the soil, or the organic matter in the domestic sewage, the PE pipe can "escape the whole body" - it will not be blocked by scale, nor will it be perforated by corrosion, which is more worry-free than iron pipes and copper pipes. Secondly, impact resistance and flexibility, even in a low temperature environment of -20 ° C, the PE pipe will not be brittle like ordinary plastics; when buried in the ground, it can buffer the pressure through its own flexibility and avoid the risk of pipe breakage. As for the service life, according to the national standard, the PE pipe can be designed to last for more than 50 years under normal pressure (such as within 1.0MPa) and environment - which almost covers the service life of a set of residential buildings, and can even keep up with the long-term needs of municipal engineering. Practical applications can further verify this: PE pipes are preferred for municipal water supply main pipes in many cities across the country, and for gas renovation projects in old residential areas. Many pipes that have been used for 20 or 30 years are still in stable operation. To take a common example, the secondary water supply pipes in residential areas use PE pipes, which have neither rusted nor leaked for several years, and the property maintenance cost is much lower than that of metal pipes. In fact, the durability of PE pipes has already been verified by a large number of scenarios - from rural drinking water safety projects to urban subway drainage systems, from home-installed cold water pipes to industrial chemical transportation pipes, it can "withstand" the test. To sum up, the durability of PE plastic pipes is not "blown out", but the result of the combination of material characteristics, process standards and practical applications. If you are torn to choose what pipe, pay attention to durability, PE pipe is indeed worth considering the option.