Suction Lift
Suction Lift
(OP)
Good day,
A pretty baic question here..sometimes the basics get a little confusing :) I have a pump operating on a suction lift. Im trying to find the differential head across the pump, I have a discharge pressure gauge so that would effectively account for all losses and fittings on the discharge end downstream of the gauge and would give me the total discharge head. Suction is a suction lift condition. However how do i find the total suction lift? I know it's the distance from the impeller centreline to the water level in the sump plus all suction line losses. But since it's a open suction, how does atmospheric pressure play into the total suction lift? (In my system velocity head is negligible)
A pretty baic question here..sometimes the basics get a little confusing :) I have a pump operating on a suction lift. Im trying to find the differential head across the pump, I have a discharge pressure gauge so that would effectively account for all losses and fittings on the discharge end downstream of the gauge and would give me the total discharge head. Suction is a suction lift condition. However how do i find the total suction lift? I know it's the distance from the impeller centreline to the water level in the sump plus all suction line losses. But since it's a open suction, how does atmospheric pressure play into the total suction lift? (In my system velocity head is negligible)





RE: Suction Lift
In a suction lift condition, the pressure reading will be less than atmospheric pressure (14.7 psi thereabouts).
RE: Suction Lift
Regards
RE: Suction Lift
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Suction Lift
**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Suction Lift
RE: Suction Lift
RE: Suction Lift
RE: Suction Lift
Johnny Pellin
RE: Suction Lift
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"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/
RE: Suction Lift