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water at 60°F that will flow through the valve in one minute when the pressure differential across the valve is one pound per square inch. C v varies with both size and style of valve, but provides an index for comparing liquid capacities of different valves under a standard set of conditions.
This paper provides instructions for Excel valve sizing worksheets prepared by the author for gas and for liquid. Even though there are a number of commercially available computerized
These workbooks include typical valve sizing and noise calculation parameters and typical tables of valve capacity (Cv) for a number of the most popular control valve styles. As such, many users will find them suitable for preliminary control valve selection.
1. Presentation of the valve Cv calculator. Calculate the required flow coefficient Cv of control valves thanks to this Excel calculation tool. Chose the sheet that corresponds to the service the valve will be submitted to (Liquid, Gas, Steam) and simply input the valve data and the flow data - flowrate, pressure, temperature when relevant - ...
2019 workbooks include typical valve sizing and noise calculation parameters and typical tables of valve capacity (Cv) for a number of the most popular control valve styles. As such, many users will find them suitable for preliminary control valve selection.
The equations for compressible fluids are for use with gas or vapor and are not intended for use with multiphase streams such as gas-liquid, vapor-liquid or gas-solid mixtures. For compressible fluid applications, this part of ISA-75.01.01-2007 is valid for all valves.
12 Μαρ 2016 · Various CV calculations tools are available for download. What is Control Valve CV? The flowrate in gallons per minute of water at a defined temperature,typically between 40F to 100F that will create a pressure drop of one pound per square inch.
