Valve Cv Equation Si Units. It allows you to calculate the flow or c v (flow coefficient) to make the relationship visible between the pressure drop (the difference in pressure between two points in a network transporting a liquid or gas) and the flow rate. This article demonstrates how to calculate the cv or kv values, and how to use these values to determine the pressure loss for a given flowrate.
A 2 valve has a cv of 120 at 40%. It allows you to calculate the flow or c v (flow coefficient) to make the relationship visible between the pressure drop (the difference in pressure between two points in a network transporting a liquid or gas) and the flow rate. Specific formulas used to estimate cv for different fluids is indicated below:
For any specific valve opening with an equivalent pressure drop and equivalent temperature, by applying multiplication factor we get equal flows in both imperial and metric units.
A 2 valve has a cv of 120 at 40%. The flow coefficient of a device is a relative measure of its efficiency at allowing fluid flow. It describes the relationship between the pressure drop across an orifice valve or other assembly and the corresponding flow rate. Equations displayed for easy reference.
