Cv Value For Valves. Reserves the right to revise without notice.‐ unit : Size 150 300 600 900 1500 2500 2 42 42 42 45 38 25 2.5 67 67 67 / / / 3 100 100 100 90 95 65 4 185 185 185 170 170 1005 6 440 440 440 400 395 265
Cv value is an imperial measure of flow in us gallons per minute of water at 60° fahrenheit with a pressure drop of 1 psi across the valve. However, there is a problem with using this equation in pneumatic applications. The flow coefficient for a control valve which in full open position passes 25 gallons per minute of water with a one pound per square inch pressure drop can be calculated as:
In deciding the size of the control valve that (port size) we need to calculate the cv value of the process (calculated cv) by calculating cv has educated more than 50 years, which is involved in.
Flow coefficient normally expressed as cv or kv depending on the countries. Founded at 1980, value valves co., ltd. Cv value is an imperial measure of flow in us gallons per minute of water at 60° fahrenheit with a pressure drop of 1 psi across the valve. We recommend you select a valve for which the cv falls between 20% and 80% open stem travel.
