NPSH for plunger pump
NPSH for plunger pump
(OP)
Hi
please what is NPSH for plunger pump have the folloing data sheet:
LIQUID PUMPED:Condensate
SP. GR. @ PT:0.071
VAPOR PRESS. @PT:0.96
VISCOSITY @PT:0.66
NORMAL ATMOSPHERIC PRESS.: 0.96 bara
MAXIMUM CAPACITY @ PT: 2 m3/hr
DISCHARGE PRESSURE: 65 bara
SUCTION PRESSURE: 0
please to inform me the equation which determine the required NPSH
regards
please what is NPSH for plunger pump have the folloing data sheet:
LIQUID PUMPED:Condensate
SP. GR. @ PT:0.071
VAPOR PRESS. @PT:0.96
VISCOSITY @PT:0.66
NORMAL ATMOSPHERIC PRESS.: 0.96 bara
MAXIMUM CAPACITY @ PT: 2 m3/hr
DISCHARGE PRESSURE: 65 bara
SUCTION PRESSURE: 0
please to inform me the equation which determine the required NPSH
regards





RE: NPSH for plunger pump
RE: NPSH for plunger pump
but can I calculate NPSHA
regards
RE: NPSH for plunger pump
You can search here in the forum or just "NPSHA calculation" through Google and you will find all required information plus calculation formula.
RE: NPSH for plunger pump
Johnny Pellin
RE: NPSH for plunger pump
RE: NPSH for plunger pump
regarsd
RE: NPSH for plunger pump
Patricia Lougheed
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RE: NPSH for plunger pump
You may find an answer to your queries in Pump Handbook McGraw-Hill, by Karassik et al., in the chapter: Displacement Pumps.
BTW, SP Gr. seems to be a typing error.
Good luck.
RE: NPSH for plunger pump
RE: NPSH for plunger pump
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What needs to be added to the NPSHA calculation formula for centrifugal pumps is the suction side acceleration head which is (L x v x n x c)/(k x g) where L is the suction pipe length, v is the fluid velocity, n is the stroke rate of your plunger pump, c is the pump factor (0.066 for a triplex pump), k is a correction factor for laminar flow (= 1.5) and g is the acceleration of gravity. The result must be deducted from the NPSHA result for centrifugal pumps.
RE: NPSH for plunger pump
RE: NPSH for plunger pump
RE: NPSH for plunger pump
RE: NPSH for plunger pump
Same first law would apply on the inlet side of the plunger pump for only about half of its cycle.
RE: NPSH for plunger pump
RE: NPSH for plunger pump
Suggest to give a read
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RE: NPSH for plunger pump
RE: NPSH for plunger pump
"For Ione and all."
RE: NPSH for plunger pump