ZW type self-priming non clogging sewage pump is a new type of pump developed by our company based on the structure and performance of ZX type self-priming centrifugal pump and QW type submersible sewage pump, and drawing on the advantages of similar foreign products, which integrates self-priming and sewage discharge. It can be used as a general self-priming pump for clean water without the need for a bottom valve or water injection. It can also suck up 60% of the large solid particles with an outlet diameter and 1.5 times the fiber length of the impeller diameter, including dirt, sediment, waste impurities, feces treatment, and all engineering wastewater and gelatinous liquids, completely reducing the labor intensity of human labor. Moreover, it is easy to install and use, requires minimal maintenance, and has performance that reaches the international advanced level. It has a broad application market and development prospects.