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What Causes Pump Cavitation: Physics, Symptoms

What Causes Pump Cavitation: Physics, Symptoms

A pump that suddenly sounds like it's processing gravel usually gets blamed for being worn out. The operator may notice heavier vibration, a fluctuating pressure gauge or a loss of flow, then find that a recently replaced pump has developed the same fault. In...
What Is Pump Cavitation: The 2026 Engineer’s Guide

What Is Pump Cavitation: The 2026 Engineer’s Guide

Pump cavitation is a damaging process where low pressure at the pump inlet causes vapour bubbles to form in the hydraulic fluid and then violently collapse, eroding internal components. In practical terms, cavitation starts when NPSHa falls below NPSHr, and accepted...