The submersible sewage pump is a kind of pump product which is connected with the motor and works underwater at the same time. Compared with the general horizontal pump or vertical sewage pump, the submersible sewage pump has obvious advantages in the following aspects:

1. Compact structure and small floor area. The submersible sewage pump can be directly installed in the sewage pool because it works underwater. There is no need to build a special pump room to install pumps and machines, which can save a lot of land and infrastructure costs.

2. Easy installation and maintenance. Small submersible sewage pump can be installed freely, while large submersible sewage pump is generally equipped with automatic coupling device for automatic installation, which is quite convenient for installation and maintenance.

3. Long continuous operation time. Because the submersible sewage pump and motor are coaxial, the shaft is short, and the weight of the rotating parts is light, the load (radial) on the bearing is relatively small, and the service life of the submersible sewage pump is much longer than that of ordinary pumps.

4. There are no cavitation damage, irrigation and diversion problems. In particular, the latter point brings great convenience to operators.

5. Low vibration noise, low motor temperature rise, no pollution to the environment.

It is precisely because of the above advantages that people have paid more and more attention to the submersible sewage pump, and the scope of use has also become wider and wider, from the original simple use to transport clean water to the present can transport various domestic sewage, industrial wastewater, construction site drainage, liquid feed, and so on. It plays a very important role in municipal engineering, industry, hospital, construction, hotel, water conservancy and other industries.