Centrifugal Pump: How to Obtain a Curve & Detect Cavitation

In summary, to obtain a centrifugal pump curve and determine if the pump is running under cavitation, one can use a pump curve and listen for a "gravel" sound and unusual vibrations.
  • #1
maxx_payne
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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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  • #2
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
 

1. What is a centrifugal pump?

A centrifugal pump is a type of pump that uses a rotating impeller to increase the pressure and flow of a fluid. It is commonly used in industries such as water treatment, oil and gas, and chemical processing.

2. How do you obtain a curve for a centrifugal pump?

To obtain a curve for a centrifugal pump, you need to perform a pump performance test. This involves measuring the flow rate and head (pressure) at different impeller speeds. The results are then plotted on a graph to create a pump curve, which shows the relationship between flow rate and head.

3. What is the purpose of obtaining a curve for a centrifugal pump?

The curve for a centrifugal pump is important because it provides valuable information about the pump's performance and efficiency. It can also be used to select the right pump for a specific application and to troubleshoot any issues that may arise.

4. How do you detect cavitation in a centrifugal pump?

Cavitation in a centrifugal pump can be detected by listening for abnormal noises, such as rattling or grinding, during operation. It can also be identified by observing a decrease in performance, vibration, and damage to the pump's internal components. Performing regular maintenance and inspections can help prevent and detect cavitation in a centrifugal pump.

5. What are the consequences of cavitation in a centrifugal pump?

Cavitation in a centrifugal pump can lead to reduced efficiency, increased energy consumption, and damage to the pump's internal components. It can also cause noise and vibration, which can affect the overall operation of the pump. If left unchecked, cavitation can ultimately lead to the failure of the pump.

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