Keco Engineered Controls: Process Control Instrumentation
Actuators > Valves

Fisher Control valve with pneumatic actuator and positioner

Actuators Valves

Control valves are available to regulate air, gas, liquid, and steam flows. For precise control, they usually are operated by an electric or pneumatic actuator with a positioner. Control signals are usually 3-15 psig or 4-20 mA.