Calculation of Kv for gas control valves
Thread Content
When controlling the flow rate of natural gas, flow control valves are required, but how should such valves be selected and how is the Kv value calculated? ? ? ? ? ?
You provide the process parameters to the control valve manufacturer, and they will do the calculations.
To calculate the CV value, parameters such as maximum flow rate, minimum flow rate, rated flow rate, operating temperature, density (or specific gravity), maximum pressure, pressure difference, and minimum pressure are required. Then, the design team or our factory’s technical staff will use these parameters to compute the CV value and select an appropriate valve core size.