How To Choose A Submersible Sewage Pump

Apr 12, 2025

1. Head of submersible sewage pump:

The head of a submersible pump must take into account various factors such as vertical height, horizontal distance, and bends. In general, the selected submersible unobstructed sewage pump should be within 20% of the required head; If the head is lower than the required head, water cannot be filled. If the head is too high than the rated head, the submersible pump will exceed the rated flow rate, and the motor will experience overcurrent, causing the machine to heat up or even burn out.

2. Submersible sewage pump flow rate:

Submersible sewage pump is a product that must be equipped and installed before the design of industrial enterprises, municipal projects and other projects. When selecting the type, it must take into account that rainstorm, typhoon, etc. may cause waterlogging in enterprises, cities and other places. The designed flow must ensure the occurrence of special circumstances. Generally, there are main pumps and auxiliary pumps.

3. Dimensions and methods of submersible sewage pumps:

The size of the WQ submersible sewage pump body with an elbow is generally large, and the size of the sewage pit should be fully considered. If it is too small, it may cause delayed heat dissipation and other situations. There are two commonly used installation methods for submersible pumps, namely mobile installation and coupling installation. The mobile installation is relatively simple, only requiring the pump to be hung and pulled into the sewage tank with a rope. The coupling installation is more complex and can be carried out under the guidance of the manufacturer. Auxiliary devices such as hoists, stainless steel chains, and guide rails must be equipped.

4. Power voltage of sewage submersible pump:

The motor voltage of the three-phase power supply is 380V; The motor voltage of a single-phase power supply is 220V. Civil electricity generally uses 220V single-phase sewage pumps, industrial enterprises generally choose 380V three-phase submersible sewage pumps, and mining enterprises generally choose 660V/1140V explosion-proof types.