Electric Actuator for Linear and Quarter Turn Control Valves
There are often options for choosing pneumatic or electric actuators as part of a process control valve installation. In recent years, electric valve actuators have gained a prominent market position due to advances in electric motor design that deliver greater torque and more precise operation. In comparison to pneumatic actuators, electric actuators are compact and comparatively self-contained, requiring only cable connections and no other equipment. With electric actuators, there are a few advantages to consider. It has been almost ten years since Rotork introduced its CVA line of electric actuators. CVA actuators have some advantages that are likely to apply to other types of actuators as well. The setup process is accomplished with a Bluetooth-enabled device that provides quick calibration of open and closed positions, as well as the establishment of valve setup parameters. When the electrical connection section cover is removed, a separate sealed compartment isolates the motor a