Submersible sewage pump is a pump product used in the environmental protection industry to transport solid-liquid mixed liquids such as domestic sewage, industrial wastewater, mud, etc. containing solid particles and fibers. The sealing system of the Submersible sewage pump can effectively prevent liquid from entering the motor cavity to protect the safe operation of the motor. The control and protection system enables the pump to alarm in time and shut down for repairs in the event of water leakage, oil leakage, overload, overheating, or lack of equivalence.

The flow rate of the Submersible sewage pump should be selected according to the second flow rate of the domestic drainage design; when the drainage volume is adjusted, it can be selected according to the maximum hourly flow rate of the domestic drainage. The flow of the drainage pump in the fire elevator sump is not less than 10L/s.
The head of the Submersible sewage pump is calculated and determined according to the lifting height and pipeline loss, and then a certain free head is added.
In public buildings, a standby pump should be set up with each living drainage catchment as a unit, and it should be operated alternately at ordinary times. If there are two or more Submersible sewage pumps for the drainage of the basement, equipment room, and garage, the equipment does not need to be used. When the sump cannot be equipped with an accident drainage pipe, the Submersible sewage pump should have an uninterrupted power supply; when the drainage inlet pipe can be closed, the uninterrupted power supply may not be provided, but an alarm device should be installed.
When the Submersible sewage pump contains large debris, the Submersible sewage pump should be equipped with a crushing device; when the sewage contains more fibrous materials, the large channel Submersible sewage pump should be used.
Submersible sewage pump should be able to start and stop automatically and manually on site. Multiple Submersible sewage pumps can be operated alternately in parallel, or put into operation in sections.