Valve Cv Calculator For Air. 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. For these calculations, an estimated c v value and the corresponding f l is used.
Stroke inches time for stroke:. The cv was designed for use with liquid flows, it expresses the flow in gallons per minute of 60º f water with a pressure drop across the valve of 1 psi. Gallons per minute of water at 60°f that will flow through a control valve at a specified opening when a pressure differential of 1psi is applied across the valve:
Online calculator to quickly determine valve and orifice cv & kvs values for air.
This calculator can be used to help select a valve with enough flow capacity for a given application. Pneumatic cylinder & valve sizing calculator : Having selected the basic valve design, consult the The use of this flow coefficient (c v) calculator leads to a standard calculation to compare valve capacities.