Centrifugal Pump: How to Obtain a Curve & Detect Cavitation

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To obtain a centrifugal pump curve, one must gather performance data at various flow rates and plot the head against flow rate. Cavitation can be detected by listening for a distinct "gravel" sound, indicating that vapor bubbles are collapsing within the pump. Signs of cavitation also include unusual vibrations and fluctuations in pressure readings. Monitoring these indicators is crucial for maintaining pump efficiency and preventing damage. Proper understanding of these factors ensures optimal pump operation and longevity.
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how to obtain a centrfugal pump curve ? and how can say from the sound of the pump if its running under cavitation or not ?? and what's the cavitation signs for the pump
 
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maxx_payne said:
how to obtain a centrfugal pump curve ? and how can say from the sound of the pump if its running under cavitation or not ?? and what's the cavitation signs for the pump

Again, use the pump curve.

Cavitation usually results in a "gravel" sound coming from the pump (i.e. like there are rocks in the pump spinning around). Also, this usually results in unusual vibrations as well.

CS
 

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