Valves need to be measured on their capacity to pass fluid. To enable fair comparison, valves are sized on a capacity index or flow coefficient. This tutorial explains the different types of flow coefficient in use, how they are established, how they compare, and typical values for different sized valves.

A control valve must, as its name suggests, have a controlling influence on the process. Whilst details such as connection sizes and materials of construction are vitally important,Balance Valves they do not give any indication of the control exerted by the valve.

Control valves adjust processes by altering:

2011-11-17

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