What is NPSH?

Questions by Mahmoud Hussien

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sushil

  • Jul 14th, 2014
 

NET POSITIVE SUCTION HEAD

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Pradeep Ingale

  • Feb 19th, 2015
 

Every liquid has a vapor pressure ( the pressure at which liquid evaporates). If the suction pressure falls below vapor pressure of liquid , Cavitation occurs. Which results into vacuum creation & bubble formation. Due to which pump flow decreases.
NPSH is a minimum head required at the suction to prevent the Cavitation

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