Operation of liquid ammonia pumps
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This post was last edited by shazizys on 2015-9-29 at 12:19. A new liquid ammonia pump has been installed. Is the outlet pressure related to the current? The smaller the opening of the outlet valve, the lower the current; however, this results in a high outlet pressure. If the outlet valve is kept closed to maintain the desired pressure downstream, will that increase the wear and strain on the pump?
This post was last edited by Liu Chongyang on 2015-9-28 at 11:19. No, the liquid ammonia pump is originally a pressure support pump; its inlet pressure is related to the pressure in your liquid ammonia storage tank； The return flow can be adjusted.
I made a mistake; it’s that the outlet pressure of the discharge pump is very high, but the opening degree of the discharge valve is low. To maintain the current level, the pressure behind the valve remains low. Will this cause damage to the pump over time?
Centrifugal pumps are not affected by pressure buildup, and this does no damage to the pump itself; however, it can damage the valve stems, and over time this may lead to internal leakage when the valve is closed. . .