How is cv related to control valves in gas flow?

Cv, or flow coefficient, is a measure of a control valve's capacity to allow fluid flow. It quantifies the amount of fluid (in gallons per minute) that can pass through a valve at a specific pressure drop (usually 1 psi). In gas flow applications, a higher Cv indicates the valve can handle greater flow rates, making it crucial for selecting the appropriate valve for specific system requirements. Understanding Cv helps engineers optimize system performance and maintain desired pressure and flow conditions.