Submersible sewage pump because of the pump and motor shaft rotation, short, coaxial weight, so bearing parts of the radial load was relatively small, life than general pump is much longer. Don’t exist cavitation damage and irrigation water, etc. Especially after a operator has brought great convenience. Vibration noise, low temperature, motor of air pollution. In municipal engineering, industrial, building, hotel, hospital, water conservancy construction and other industries plays a very important role.
The key of submersible sewage pump is reliability problems, because of the use of sewage pump diving in liquid is under the situation, Transmission medium containing some solid materials is mixed liquid. Pump and motor on very near, pump for vertical layout, rotating components with impeller under water stress weight above. These problems are made in diving sewage pump seal, motor bearing capacity, bearing arrangement and the requirements of the selection of sewage pump than average.
In order to improve the life, submersible pumps manufacturer in the pump to protect system, namely in the pump leakage occurs, overload, overtemperature fault can make the automatic alarm, and automatic stop for repair. The submersible sewage pump set protection system is necessary, it can effectively protect the safe operation of pump.