PP Drainage Grate Wholesaler Prices _ Factory Cost-Effective [Zhenjiang Xingyang Electrical Pipe Co., Ltd.] What is the function of a PP pipe drain? It prevents odor, clogs, cockroaches, viruses, backflow, and dryness (mainly refers to water-sealed drains). The quality of a drain is mainly evaluated from four aspects: drainage speed, odor prevention, ease of cleaning, and mechanical durability. It is an important interface connecting the drainage system and the indoor ground, serving as a crucial component of the residential drainage system. Its performance directly affects indoor air quality and is vital for controlling bathroom odors. The selection standard applies only to drains used in general industrial and residential buildings and is not suitable for special locations such as anti-personnel projects with wave prevention drains or petrochemical enterprises with explosion-proof drains. For drains in special locations, in addition to referring to this standard, they should also meet the technical requirements of relevant industries.