Sewage pump is a type of centrifugal impurity pump, which has various forms, such as submersible and dry type. The most commonly used submersible pump is the QW type submersible sewage pump, and the most common dry sewage pump is the W type horizontal sewage pump and the WL type vertical sewage pump. Mainly used for transporting urban sewage, feces or liquids containing fibers. The medium of solid particles such as paper scraps is usually transported at a temperature not exceeding 80 ℃. Due to the presence of easily entangled or bunched fibers in the medium being transported. Therefore, the flow channel of this type of pump is prone to blockage, and once the pump is blocked, it will prevent the pump from working properly and even burn out the motor, resulting in poor drainage. It has a serious impact on urban life and environmental protection. Therefore, anti clogging and reliability are important factors for the quality of sewage pumps.

Sewage pumps can be divided into: submerged sewage pumps, pipeline sewage pumps, submersible sewage pumps, vertical sewage pumps, corrosion-resistant sewage pumps, acid resistant sewage pumps, and self priming sewage pumps.

The sewage pump models include PW sewage pump and PWL sewage pump.

The most common type of pressurized water chamber used in PW sewage pumps is the volute, and in internally installed submersible pumps, radial guide vanes or flow channel guide vanes are often used.

The PWL sewage pump impeller and pressure chamber are the two core components of the sewage pump. The quality of its performance also represents the quality of the pump's performance.

With the progress of society, the continuous improvement of people's living standards, and the strengthening of environmental awareness, sewage pumps have become familiar to people and their application scope has become increasingly broad.

Of course, sewage pump is just an application name, in fact, the use of rubber lined slurry pump as a horizontal sewage pump is very good. When treating industrial wastewater, rubber lined pumps are widely used due to the presence of acidic or alkaline substances in the wastewater. According to some application cases in the pump industry, using rubber sheaths and metal impellers in rubber lined pumps can not only achieve the high pressure and efficiency of metal pumps, but also fully utilize the corrosion resistance of rubber materials. When treating urban sewage, a filter screen is usually added in front of the sewage treatment tank to block the fiber entanglement and other substances in front of the pump's suction port, preventing them from entering the pump chamber, thus enabling the pump to work better and have a longer lifespan.