Internal gear Positive displacement Pump(Motor BKW too high because of Ext. Relief valve set press.)
Internal gear Positive displacement Pump(Motor BKW too high because of Ext. Relief valve set press.)
(OP)
REBOILER CIRCULATION PUMP
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CAPACITY: 95GPM
DIFF PRESS.: 17.92 PSI
DISCH. PRESSURE: 78.8 PSIG
VISCOCITY: 124.6
VAP PRESS.: 73.86 PSIA
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BIDDER OFFERED MOTOR OF 15HP BASED ON EXTERNAL RELIEF VALVE SET PRESSURE OF 145 PSIG.
RATED POWER WAS ONLY 1.98HP @ 165RPM.
ISN'T THE MOTOR RATING TOO HIGH???
---------------------------------
CAPACITY: 95GPM
DIFF PRESS.: 17.92 PSI
DISCH. PRESSURE: 78.8 PSIG
VISCOCITY: 124.6
VAP PRESS.: 73.86 PSIA
--------------------------------
BIDDER OFFERED MOTOR OF 15HP BASED ON EXTERNAL RELIEF VALVE SET PRESSURE OF 145 PSIG.
RATED POWER WAS ONLY 1.98HP @ 165RPM.
ISN'T THE MOTOR RATING TOO HIGH???





RE: Internal gear Positive displacement Pump(Motor BKW too high because of Ext. Relief valve set press.)
RE: Internal gear Positive displacement Pump(Motor BKW too high because of Ext. Relief valve set press.)
unfortunately THAT'S NOT CORRECT, I HAVE OTHER TAGS WITH MOTOR RATING AS LOW AS 5hp FOR SAME PROJECT BUT DIFF ITEM.
RE: Internal gear Positive displacement Pump(Motor BKW too high because of Ext. Relief valve set press.)
RE: Internal gear Positive displacement Pump(Motor BKW too high because of Ext. Relief valve set press.)
RE: Internal gear Positive displacement Pump(Motor BKW too high because of Ext. Relief valve set press.)
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Internal gear Positive displacement Pump(Motor BKW too high because of Ext. Relief valve set press.)
RE: Internal gear Positive displacement Pump(Motor BKW too high because of Ext. Relief valve set press.)
But that's what i am amazed of.why??
Geor- No there is no any other RV except inbuilt internal RV with these viking pumps
RE: Internal gear Positive displacement Pump(Motor BKW too high because of Ext. Relief valve set press.)
Else install another normal capacity / backpressure recycle valve set at a lower pressure and add a margin to this pressure to ensure you have some margin on motor hp ( usually at least 10% between max operating hp and motor rated hp). For this case, select credible coincident upper or lower limit physical properties for this fluid that will demand more hp.