How To Solve The Problem Of Unstable Flow Rate In Slurry Pumps?

Date: 2025-11-27     From: Longding     Author: admin

Unstable flow rate in slurry pumps is a common problem that can be caused by a variety of factors. To solve this problem, the following aspects can be investigated and addressed.

1. Check the suction pipe and bottom valve

A. Air leak

Check the suction pipe and bottom valve for air leaks. If any leaks are found, plug the source of the leak immediately.

B. Clog

Check the inlet for blockages, especially for silt or other debris. Clear any blockages at the inlet to ensure smooth water flow.

C. Adjusting the depth of the bottom valve

If the bottom valve is not deep enough in the water, air can easily be drawn in during pumping, resulting in unstable flow rate. The depth of the bottom valve should be adjusted according to the suction head of the slurry pump to ensure that air is not sucked in during pumping.

2. Check voltage and power supply

A. Low voltage

Low voltage can cause the slurry pump to slow down, thus affecting the flow rate. The power supply and voltage should be checked to ensure they are stable, and the voltage should be adjusted to the normal range as needed.

3. Check the sealing ring and impeller

A. Wear

Severe wear of the sealing ring and impeller can lead to unstable flow. The wear of the sealing ring and impeller should be checked regularly, and they should be replaced promptly.

4. Inspect the pipeline and pump body

A. Air Leak in Pipeline

Check the pipeline for leaks, especially the connections. If a leak is found, repair it immediately.

B. Air in the pump body

Air inside the pump body will affect the flow rate. Bleed the air from the pump body to ensure it is filled with liquid.

5. Regular inspection and maintenance

Regular inspection and maintenance of slurry pumps can help identify and resolve problems in a timely manner, preventing unstable flow rates.