what is npsh and how to calculate it for a centrifugal pump
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Answer Posted / t.nandakumar
NPSH means the net positive suction head.There are two
types of NPSH - NPSH available & NPSH required.
NPSH available = suction pressure + suction static head -
pressure drop in suction piping & fittings - vapour
pressure drop- presssure drop in section strainer.
NPSH required - NPSH specified by the pump supplied which
shall be atleast less than NPSH available by difference of
one.
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