Hi,
How to set the pressure drop for the control valve at a pump discharge? I have different regimes and the control valve is at the booster pump outlet. is there a special requirements for such control vales ?
Thank you
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Posted 04 June 2024 - 08:25 AM
Hi,
How to set the pressure drop for the control valve at a pump discharge? I have different regimes and the control valve is at the booster pump outlet. is there a special requirements for such control vales ?
Thank you
Posted 04 June 2024 - 02:25 PM
Edited by snickster, 04 June 2024 - 02:29 PM.
Posted 05 June 2024 - 12:34 AM
Hi ,
To add to Snickster's reply, a paper and an excel sheet I prepared years ago.
Breizh
Posted 10 June 2024 - 03:38 AM
Hello
First of all you need to determine the worst case which corresponding the maximum calculated Cv considering the following:
With this condition you will determine the max flow valve condition and rated head of the pumps.
After that you can do the calculation for normal flow with normal operating pressure and level, and min flowrate to determine the full operating of the control valve.
For better estimation it is good to have pump curves for normal and min case , I have attached and example for the valve hydraulic calculation of this 3 cases using Flowmax
Valve Sizing Cases .pdf 397.38KB
46 downloads
Regards
Edited by walidd_23, 10 June 2024 - 04:53 AM.
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