Calculate flow coefficients for the design of control valves - Imperial units. With the flow coefficients capacities of valves at different sizes, types and manufacturers can be compared.

Valve Flow Coefficient (Cv) is a valve’s capacity for a liquid or gas to flow through it. It is technically defined as “the volume of water at 60°F (in US gallons) that will flow through a valve per minute with …

This calculator can be used to help select a valve with enough flow capacity for a given application. The valve flow coefficient (C v) is a convenient way to represent flow capacity of a valve across a range …

What is the Valve Coefficient? The Valve Coefficient or Flow Coefficient of a valve is a convenient method to relate flow rates to the pressure drop. It provides a relative measure of the efficiency of a …

The control valve flow coefficient (Cv) is a fundamental parameter that provides a measure of a control valve’s capacity to pass fluid. A thorough understanding of Cv is essential for instrumentation and …

Oct 22, 2025 · The valve flow coefficient, often denoted as Cv, measures the fluid flow rate through a control valve. It is a crucial factor in valve sizing as it helps determine the appropriate valve size for …

Manufacturers may specified the coefficient Cv instead of Kv for their valve. Cv is the number of US gallons that goes through the valve at 60F and with a pressure drop of 1 psi.

Find your minimum required Cv value using this valve flow rate calculator to help find the right valve sizing for your needs.

Dec 17, 2001 · The single most important piece of information needed to select a control valve is the valve sizing coefficient, Cv. Cv is defined as the flow rate in U.S. gallons of water (at 60°F) that will …

Cv is the agreed upon industry unit of measure for valve flow capacity. It is defined as the number of gallons per minute (gpm) of water at 60F will pass through the valve with a pressure drop of 1 psi.