Topical Terminology > N P S H A
1 Definition
N P S H A
For N P S H A we have a term and definition in Plumbing.
N P S H A (Plumbing) 
Net positive suction head available to prevent cavitation of the pump. It is defined as:
Atmospheric pressure + gage pressure + static pressure - vapor pressure - friction loss in the suction piping.
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