How can i obtain the pump flow rate ?

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SUMMARY

The pump flow rate can be accurately obtained using several methods, including manufacturer pump curves, which relate pump head to flow rate. The bucket and stopwatch method is a simple and effective way to measure rated flow rates. For low flow applications, an electronic meter with a propeller is the most cost-effective solution, while a pressure differential device is suitable for high flow scenarios. Eddy current flow meters offer ease of use but come at a higher cost.

PREREQUISITES
  • Understanding of pump curves and their significance in flow rate measurement
  • Familiarity with the bucket and stopwatch method for flow rate calculation
  • Knowledge of electronic and mechanical flow meters, including their applications
  • Basic principles of fluid dynamics related to pressure differential measurements
NEXT STEPS
  • Research how to interpret and utilize pump curves for flow rate analysis
  • Learn the bucket and stopwatch method for practical flow rate measurement
  • Explore the specifications and applications of electronic propeller flow meters
  • Investigate the functionality and cost-benefit analysis of eddy current flow meters
USEFUL FOR

Engineers, technicians, and anyone involved in fluid dynamics or pump system design will benefit from this discussion, particularly those focused on accurately measuring and optimizing pump flow rates.

maxx_payne
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how can i obtain the pump flow rate ?
is this done by filling a certin volume and measure time or there is another method ??
 
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maxx_payne said:
how can i obtain the pump flow rate ?
is this done by filling a certin volume and measure time or there is another method ??

Pump curves from the manufacturer is the best way. The pump head and flow rate are related so you'll need to have the curves.

You can get the rated flow rate by using the bucket and stop watch method though! :wink:

CS
 


maxx_payne said:
how can i obtain the pump flow rate ?
is this done by filling a certin volume and measure time or there is another method ??

Pump flow rate can be obtained by following engineering device:
1. for low flow, electronic meter with a propeller will help you; cheapest flow meter.
2. for high flow, pressure diffential device is a mechanical choice.
3. eddy current flow meter, easy to use, no skill is need but very expensive.
 

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