Valve Cross sectional area calculation

[sweethaneef]

Hi,
i have a very simple question. I have the details of my valve such as valve command vs Cv . now i need to simulate this valve. but to do that i need to Feed Cross sectional area of the valve in to the model.
I want some one to help me give the equation to convert Valve Cv to Cross sectional area.
I alsoi saw this equation CA= Cv*0.0264
but i am not sure about this number 0.0264. what is it actual. will this number change for my valve of 6 inches.
please advise soon. thank you in advance.

 

[israelkk]

http://www.theleeco.com/LEEWEB2.NSF...2080c790388543948525689b00654b38!OpenDocument

See second graph.

 

[sweethaneef]

Actually i want to know the equation to calculate the Cross sectional area of a valve for the given Cv and valve diameter.

CA of a valve = Cv * ?

 

[sweethaneef]

Thank you, i finally got it. it seems the constant that you gave is CA = Cv * 0.028 thansk for your inputs