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Recent content by ortnvol
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Best way to contol flow
Thanks to everyone who responded. I will check the pump BHP to flow curve prior to proceeding with a recommendation. I don't think we can change impeller or motor size since the recirc flow is typically ~20% of process flow, however, but the recirc valve varies from 0 - 100 % open. We need...- ortnvol
- Post #13
- Forum: Pump engineering
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Best way to contol flow
I have looked at a VFD application. The system pressure is such that the minimum pump speed must be 70 to 80% just to overcome the minimum head requirements. That is why I am looking at a control valve application.- ortnvol
- Post #5
- Forum: Pump engineering
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Best way to contol flow
In a paper mill I am working in, they are using recirc lines to control pressure and thus flow to a process. They use process line pressure to open and close a recirc valve, diverting flow back to a holding tank which provides for a pump's suction. The end result is that the pump is always at...- ortnvol
- Thread
- Replies: 15
- Forum: Pump engineering
