Actuated valves, either on/off or control function, are used in applications and systems such as HVAC, water treatment, chemical and petrochemical processes and manufacturing. Actuated valves are often integrated with sensors in systems to form a control loop to achieve precise control of process flowrates which are critical for the quality of end products, or to precisely control temperatures in HVAC systems for occupants’ comfort .
Actuator
Actuators are components that require power input to drive a load (in this case a valve), the actuators can be driven by means of hydraulics, electricity or pneumatics (compressed air).
Electric actuators use electric power supply to drive a motor to generate a torque to change the valve position. Pneumatic actuators converts energy (typically in the form of compressed air) into mechanical motion. The motion can be rotary or linear, depending on the type of actuator.
