Pressure Control Valves (PCV)

Pressure control valve (PV)
A pressure control valve or PV is a type of valve commonly used to regulate and control fluid pressure in a system. The main function of the valve is to maintain a consistent pressure level within a specific range, regardless of any changes in the upstream or downstream pressure.
The operation of a pressure control valve involves opening and closing in response to changes in pressure, which helps to regulate the flow of fluid through the system. If the pressure exceeds the set point, the valve opens to allow fluid to escape and reduce the pressure. Conversely, if the pressure drops below the set point, the valve closes to prevent fluid from escaping and increasing pressure.
As shown in the above image, the Pressure control valve is indicated to connect with the pressure transmitter of the line which sends the indication to the controller to operate the valves in the required percentage of opening to maintain the pressure of the process