What is indicated by air leaks in the suction line of a centrifugal pump?

Air leaks in the suction line of a centrifugal pump result in a condition known as "cavitation," which can severely affect the pump's performance and lead to potential failure. When air enters the suction line, it disrupts the flow of liquid, causing fluctuations in pressure and reducing the pump's ability to operate effectively. This can result in improper fluid flow, erratic pump operation, and even damage to the pump components, such as the impeller and casing.

The presence of air in the system can create vapor pockets which can collapse violently and cause physical damage to the pump over time. This situation not only leads to a decrease in efficiency but may also necessitate costly repairs or replacement of the pump altogether. Maintaining a sealed suction line is critical to ensuring reliable operation and longevity of the equipment.