Cv Meaning Control Valve

Control valve cv refers to the flow coefficient of the valve.

Cv meaning control valve. When sizing a control valve, the most common approach is to calculate the flow coefficient, cv which is a measure of the capacity of the valve body and trim. The speed of sound in steam will depend upon the steam temperature and the quality of the steam, but can be calculated from equation 6.4.2 if the conditions are known (mach. Cv by definition is the number of gallons per minute (gpm) a valve will flow with a 1 psi pressure drop across the valve.

They have very similar meaning but not exactly the same definition. This is used as a guide and is not a linear progression. For a specific control valve, flow coefficient cv/kv is determined experimentally by control valve manufacturers, and you can found it in manufacturers technical specifications.

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. When a valve is too small for a given application you obviously won’t be able to get enough flow through the valve. Chapter 5 is a comprehensive guide to selecting the best control valve for an

For example a valve with a cv of 10 will flow 10 gpm with a 1 psi pressure drop. Chapter 2 develops the vital topic of control valve performance. The cv tells you how to properly size your valve so it has minimal effect on the hydraulic efficiency you’ve engineered into your system.

The formulas provided here are simplified for general use. Carrier volplane (fixed wing) cv: For a specific gas control valve, the flow coefficient cg or kg is determined experimentally by control valve manufacturers, and you can found it in manufacturers technical specifications.

Chariot ventures, llc (hong kong) cv: The formula used to select the valve cv with the specified differential pressure is: Cv is commonly called the flow coefficient and kv is commonly called the flow factor.