Control Valve Sizing Calculation Explained | Valve Flow Coefficient(Cv)
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- Опубліковано 14 тра 2023
- In this video, I have shown control valve sizing calculation examples. By using this method, you can identify correct valve size for your application.
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Sir, Thank You very much. This valve sizing calculation is very simple and made my design easy. I have got to thank you again and again.
Glad you liked it
How to calculate Cv without Delata P? Could you please explain? During the Control valave selection we don't have Pressure drop across control valve value?
That's right. Tell us how to calculate Cv value without DeltaP
Sir is that pressure drop is across the valve only? How to calculte del P for that valve practically
Sir this valve size is just for water line..?? If we have to take with steam line will this equation works ???
very good explain how to select a valve
Glad it helped
How can i know the table of valve
How to calculate for the steam line ?
Same calculation for gas, steam and fluid flow ?
Why valve size depends on cv?
Hello Senthil
Yes, It should be the same calculation. However, you need to change specific gravity of fluid for different fluids.
suppose a valve have 12.91 but cv 12 ur taken and overflow is more than 12.91 then how it helpful to controlling the valve
I would not have chosen the maximum flow valve Cv=12, if there is no other specification, the valve will not have sufficient capacity for the application.
Only we need to take psi and gpm unit for Cv calculation
How did you get that 20 CV for first calculation.. can you explain please?
Sqrt of 100 is 10 . So 200/10 is equal to 20
Hello Ankit
Yes, Naresh explanation is correct.
Hello Naresh
Thanks for your explanation. I really appreciate it.
Cv Vs Valve size , wats the calculation?
Why you choose 17 ?why not 20 ?
I know How to Calculate CV but How To Get that size i cant Understand or Can you please Explain where can i Get that Chart size
Valve providers let you use Cv charts o data base. In addition mosto of them let you use theri sizing software on line or let you download the sizing software
Calculate it without pressures drop
You should not pick a valve size with less cv then the calculated cv, incorrect.