PVC drainage pipe has been more and more widely used in various industries, the main material of PVC drainage pipe is PVC,PVC has strong heat resistance and corrosion resistance, which is why PVC is widely used as a reason.

In order to make the building facade more beautiful, indoor rainwater drainage system has been more and more widely used. Indoor rainwater pipes are generally designed according to non-pressurized flow, but because the rainwater flow is sometimes larger and more concentrated, there are two states of gravity flow and pressure flow in the pipe, so the indoor rainwater pipes are required to withstand pressure better than other drainage pipes.

PVC drainage pipe is a substitute for traditional drainage pipe, which has better physical and chemical properties. Its inner wall is smooth, and the friction resistance is less than that of conventional drainage materials, so the transverse pipe installation slope is smaller, which can improve the indoor net height of the building. At the same time, the PVC pipes weight is lighter, for one 5 of the cast iron pipe, easy to transport and operating  adhesive connection, convenient installation and maintenance  price low than conventional drainage pipe, greatly reduce the project cost  corrosion resistance is strong, very commonly used in building sewage effluent and rain water piping system. In addition, the widespread use of PVC drainage pipe is beneficial to save steel, which has a very important significance for alleviating the situation of our iron and steel shortage. Compared with cast iron tube  steel tube, PVC -u drain low pressure  problem of weak shock resistance. In addition, although PVC-U drainpipes are non-combustible materials, for indoor open-coated pipes, there is the possibility of fire spreading upward along the drainpipe.