Pressure drop along an EEV?
Pressure drop along an EEV?
(OP)
Dear forum users,
I have a theoretical question. We have a cycle where the condensation pressure (temperature) is too high and for reducing it I'll buy an electric expansion valve. It needs to cause a certain pressure drop. In the datasheets the pressure drop and flow rate are correlated, but only for when the valve is at fully opened position (so the k_vs is given). Is the k_v value proportional to the position? Can we say then if the valve is 50% closed, then the k_v = k_vs/2? I'm having problems in understanding the relationship between the valve position and the pressure drop. I'd be very thankful for insights.
I have a theoretical question. We have a cycle where the condensation pressure (temperature) is too high and for reducing it I'll buy an electric expansion valve. It needs to cause a certain pressure drop. In the datasheets the pressure drop and flow rate are correlated, but only for when the valve is at fully opened position (so the k_vs is given). Is the k_v value proportional to the position? Can we say then if the valve is 50% closed, then the k_v = k_vs/2? I'm having problems in understanding the relationship between the valve position and the pressure drop. I'd be very thankful for insights.





RE: Pressure drop along an EEV?
The manufacturer should be able to give you that information.
Please, see this:
http://www.engineeringtoolbox.com/control-valves-f...
"God will not look you over for medals, degrees or diplomas, but for scars." - Elbert Hubbard
RE: Pressure drop along an EEV?
RE: Pressure drop along an EEV?