The valve flow coefficient according to the JIS standard, represents the flow capacity in US gallons/minute of 60° F pure water when it is flowing through the valve with a pressure difference of 1 psi at the specified travel (operation range).
Calculating the flow rate from the Cv value requires complex calculations. We have created a Cv value and flow rate calculator, so please utilize it.
If you want to calculate the Cv value and flow rate outside of the specified units, please contact us.