Comprehensive Introduction Of Submersible Sewage Pumps From Multiple Aspects, Allowing Operators To No Longer Be At A Loss

Jul 02, 2025

Submersible sewage pumps can tear and cut long fibers, bags, belts, grass, cloth strips, and other substances in sewage, and then discharge them smoothly. They are particularly suitable for transporting liquids containing hard solids, fiber materials, as well as particularly dirty, sticky, and slippery liquids.

1. There are two types of installation for submersible sewage pumps: fixed and mobile.

When using fixed automatic installation, the chain cable should be threaded into two lifting ring screws or lifting plates (offset from the pump outlet, and its connection should be parallel to the pump outlet) to lift the pump up and down. Slowly and evenly slide down along the guide rail until it automatically couples into place. When using mobile installation, first cover the hose and use a chain cable to lift the electric pump up and down through two lifting rings. Be careful not to use the cable as a rope to avoid danger.

2. Measure the same and relative ground insulation resistance of the electric pump motor with a 500V megohmmeter, and the value should not be less than 2 megohms.

Otherwise, the motor stator winding should be dried, and the drying temperature should not exceed 120 ℃.

3. Before using a submersible sewage pump, carefully check whether the cables are damaged, whether the fasteners are loose or detached, and whether the pump is deformed or damaged during transportation, storage, and installation.

4. Pumps without self circulating cooling devices are strictly prohibited from being exposed to the water surface for long-term operation to prevent overheating and damage to the electric pump.

5. Do not operate the pump in a low head state for a long time (generally, the head should not be less than 60% of the rated head).

It is recommended to control the head within the recommended range to prevent the electric pump from burning out the motor due to overload.

6. Submersible sewage pumps must be equipped with a fully automatic pump control cabinet unless there are special circumstances.

Do not directly connect to the power grid or use a knife switch to connect the power supply to ensure the normal operation of the electric pump.

7. The grounding wire of the casing of the submersible sewage pump must be strictly connected in accordance with relevant regulations.

In order to ensure personal safety during use, it is strictly prohibited to install or move people in the vicinity when the electric pump is running, in case of accidents caused by leakage of the electric pump.

8. The rotation direction of the submersible sewage pump after connection is counterclockwise when viewed from the inlet.

If the electric pump is reversed, simply swap any two wires in the cable to adjust the wiring position.

The above is today's comprehensive introduction to submersible sewage pumps, which will help operators no longer feel helpless. We hope it will be helpful for everyone to use this equipment in the future.