Control Valve

The working principle of the control valve is opening or closing internal passages in order to regulate the flow of a liquid or gas. Control valves are part of a control loop that controls a process. Control valves adjust internal openings in response to instructions from the controller.

The control valve is the last control component that is used the most frequently in process control sectors. To counteract the load disturbance and maintain the regulated process variable as close to the intended set point as feasible, the control valve modifies a flowing fluid, such as gas, steam, water, or chemical compounds.