What could be causing the low suction volume of a highly corrosion and abrasion resistant multistage pump?

2025-04-30

High-corrosion-resistant, wear-resistant multi-stage pumps are widely used in industrial, agricultural, and municipal fields. They are known for their stable performance and long service life, and are highly reliable. However, in actual use, sometimes low suction volume may occur, which may be due to a variety of reasons.

1. The pump's installation location may affect the suction volume. If the pump is installed too high, or the suction pipe is too long and thin, it may cause air in the suction pipe to not be completely discharged, thus affecting the suction volume. In addition, if the pump's installation angle is incorrect, it may also prevent liquid from smoothly flowing into the pump, thus affecting the suction volume.

2. Air leakage in the suction pipe is also a common problem. Any minor air leakage in the suction pipe will seriously affect the pump's suction volume. Therefore, it is necessary to check whether the connections in the suction pipe are tight, and whether there is any damage or aging of the pipe.

3. The pump's speed is also an important factor affecting the suction volume. If the pump's speed is too low, it will cause the pump's flow rate to decrease, thus affecting the suction volume. At this time, it is necessary to check whether the motor speed is normal, and whether the internal mechanical parts of the pump are worn or damaged.

4. The properties and temperature of the liquid may also affect the suction volume. If the liquid's viscosity is too high or the temperature is too low, it will increase the pump's suction load, resulting in a decrease in suction volume. In this case, consider heating the liquid or reducing its viscosity to improve the pump's suction volume.

5. It may also be a problem with the pump itself. If the internal flow path of the pump is blocked or severely worn, it will cause the pump's flow rate to decrease, thus affecting the suction volume. At this time, the pump needs to be inspected and maintained, the internal flow path cleaned, and severely worn parts replaced.

In summary, the reasons for low suction volume in high-corrosion-resistant, wear-resistant multi-stage pumps may involve multiple aspects and require inspection and troubleshooting. During use, it is necessary to regularly inspect and maintain the equipment, promptly identify and solve problems to ensure the normal operation of the equipment and extend its service life.

Previous: How should the wearing parts of a high corrosion and wear resistant multistage pump be maintained?

Next: Valve and instrument requirements for high corrosion and wear resistant multistage pumps