Long-shaft pump is a kind of centrifugal pump. From the perspective of centrifugal pump, it is improved from the performance of submerged pump. This pump can be used to transport rainwater, iron oxide water, sewage, corrosive industrial Wastewater, seawater and other liquids. Widely used in water companies, sewage treatment plants, steel plants, mines and other industrial and mining enterprises, as well as municipal water supply and drainage, farmland irrigation, flood control and drainage projects.