Corrosion-resistant magnetic pumps play an important role when handling corrosive liquids, but in some cases, they can experience cavitation issues. Cavitation may lead to reduced pump performance, damage to equipment, and even affect production. This article will discuss the causes of cavitation in corrosion-resistant magnetic pumps and how to effectively avoid this problem to ensure reliable operation of the pump.

1. Causes of cavitation

Cavitation occurs when the hydrostatic pressure at the pump inlet is lower than the saturated vapor pressure of the liquid. This may be caused by:

Liquid level at pump inlet is too low.

There is a leak or air accumulation in the inlet duct.

The temperature of the liquid increases, causing the vapor pressure to increase.

2. How to avoid cavitation

Check the pump inlet fluid level: Make sure the fluid level at the pump inlet is high enough to prevent cavitation from occurring. Adjust the inlet liquid level if necessary.

Inspect and repair the inlet pipeline: eliminate air leakage points in the inlet pipeline and ensure that the pipeline system is sealed intact.

Reduce liquid temperature: Reduce the temperature of the liquid through a cooling system or other methods, thereby reducing the vapor pressure.

Use cavitation suppressors: Some corrosion-resistant magnetic pumps are equipped with cavitation suppressors, which can effectively reduce cavitation.

Select the appropriate pump model: Depending on the specific application needs, select a pump model with lower NPSH requirements to reduce the risk of cavitation.

Regular maintenance: Carry out regular pump maintenance and inspection to ensure the normal operation of various parts of the pump and reduce the chance of cavitation.

Cavitation is a problem that corrosion-resistant magnetic pumps may face, but cavitation can be effectively avoided and mitigated by checking the pump inlet liquid level, repairing the pipeline system, controlling the liquid temperature, and selecting an appropriate pump model. Regular maintenance and inspection are also key steps to ensure stable pump performance. Following these recommendations can improve the reliability of corrosion-resistant magnetic pumps and ensure they perform well when handling corrosive liquids.