PVC pipe is a pipe product with strong toughness, good heat resistance and good ductility. The plastic pipe is composed of three parts: the upper layer, the middle layer and the lower layer. The upper layer of the PVC pipe is a layer of paint film, which plays the role of waterproof and anti-aging; the middle layer is the polyvinyl chloride layer, which is the most important base layer; and the lower layer is back-coated adhesive Among many PVC products, the mixture of rigid PVC pipes and fittings is showing a rapid growth trend in our country, and it is also the most consumed variety of various plastic pipes.
Water wells are an important water intake project for the development and utilization of groundwater resources, and play a huge role in the development and utilization of groundwater resources, agricultural irrigation, and human and livestock water use in my country. The pipes traditionally used in the construction of water wells are mainly cast iron pipes, steel pipes, and cement pipes. Due to the serious corrosion problems of these pipes, they not only affect the service life of the water well, but also produce many undesirable consequences, such as the rot of the well wall. Sand gushing, ground formation subsidence, stratum collapse, water pollution, short service life of water wells, etc., cause very alarming losses every year. Plastic well pipe has the characteristics of light weight, convenient and quick installation and construction, strong corrosion resistance, good durability, and low cost. In the water well industry abroad, especially in developed areas, more than 80% use plastic well pipe.
