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[ChemEng01]

ISA 75.01.01 does not have a valve style modifier for multistage control valves? 

 

I'm wanting to calculate the valve reynolds number Rev to show the flow is fully turbulent through the valve, and that the fully turbulent control valve sizing equations are valid along with the multistage expansion factor Y . 

 

Is this because multistage valves will cause turbulent flow no matter what due to their design?

 

I know the flow through my valve will be fully turbulent because the fluid has low viscosity and the pressure drop is high, however it would still be nice to calculate the valve reynolds number to show this is the case

 

Appreciate any help

 

Thanks

[ChemEng01]

Please let me know if I've asked a stupid question (due to the lack of response)

 

Thanks