centrifugal relief valve
centrifugal relief valve
(OP)
Hello All,
I need a little clarification.
Is it necessary to place a Relief Valve at pump discharge.
If not, at what occassions would an exception be considered?
Regards
'Lekan
I need a little clarification.
Is it necessary to place a Relief Valve at pump discharge.
If not, at what occassions would an exception be considered?
Regards
'Lekan





RE: centrifugal relief valve
You need to determine what the system maximum suction pressure could be, add to that the maximum shut off head of the pump, and then look at your downstream system to determine if you need a relief valve, based on this potential maximum pressure.
RE: centrifugal relief valve
From my understanding, and more often than not, the pump shut-off pressure is always less than the Allowable Stress of the Pipe Material - in the case of Steel Pipes (defined by ASME B31.3).
Consequently, the reason for using Relief Valves for in Centrifugal Pump arrangement is to protect the pump.
My question remains, when is is necessary to install these Releif Valves to protect the pumps, because I find that, some installations do not use it.
Regards
'Lekan
RE: centrifugal relief valve
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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: centrifugal relief valve