Pump Cavitation Troubleshooting is a key area of interest for many flow control professionals. The links below point to articles on this topic from some of the pump industry’s leading minds.

Pump Cavitation Root Cause Analysis

A Flow Control reader reaches out for some pump cavitation troubleshooting as follows; the Pump Guy responds …

“At first we restricted some control valves to reduce water usage and fill rates. This reduced the noise to “tolerable” levels. But now production is increasing. We need more flow. Those valves are open. We get more cavitation damage, noise, and maintenance with the flow.

“I need to first convince myself that any proposed system changes will permanently resolve the pump cavitation and excessive vibration/noise issue before I request the system downtime from our site management to implement those changes. I’m just not quite there yet. Any insight you could provide would be greatly appreciated.”

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PUMP GUY: Is Pump Cavitation the Reason for My Damaged Wear Bands?

My name is Jerry. I work in reliability at a nuclear power plant. My colleagues and I read and discuss your articles in Flow Control magazine every month. We have a problem with cavitation on a salt water pump. Can you help? See the attached photo of the problem. It is an impeller with the seated wear band (Photo 1).

The impeller wear band shows cavitation damage. The damage appears like an attack by termites that ate a trail across the wear band. The termite trail appears in this one spot only on the wear band diameter (Photo 2).

This pump has been in service for 10 years, running for about 45 percent of that time and with no intrusive maintenance.

Pump cavitation is the only thing I can think of with enough energy to eat the wear band. But what could be the cause of the pump cavitation? Is this termite trail evidence of cavitation?

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The Pump Guy’s Quick & Easy Tips for Resolving 85% of Cavitation Issues

Flow Control columnist Larry Bachus, a.k.a. “The Pump Guy,” often makes the case that 85 percent of pump cavitation problems can be alleviated by employing some basic pumping system fundamentals.

Want to know how? Download this “Premium Content” article for the Pump Guy’s quick and easy tips.

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Q&A: Pump Cavitation Diagnosis & Control

Flow Control columnist Larry Bachus, a.k.a. “The Pump Guy,” often makes the case that 85 percent of pump cavitation problems can be alleviated by employing some basic pumping system fundamentals.

Want to know how? Download this “Premium Content” article for the Pump Guy’s quick and easy tips.

>> Read More