QW series submersible sewage pump is a new energy-saving product jointly developed by our company and domestic scientific research institutions. It is mainly used for sewage treatment and discharge system of municipal engineering, industrial and mining enterprises and high-rise buildings, and can also be used for farmland drainage and irrigation, biogas liquid discharge and so on. It can transport silt, waste water and municipal sewage with a PH value of 4-10 with solid particles and various long fibers. The pump has the advantages of small size, low noise, wide use, safety and reliability, automatic control and so on. According to user requirements, matching control cabinets, double guideway automatic installation system. It can be designed and manufactured with nodular cast iron or stainless steel according to the medium.