When comparing electric and pneumatic actuators, electric actuators derive their power from electricity, converting electrical energy into rotational motion to operate rotary control valves such as butterfly or ball valves. These actuators respond to specific control signals that dictate the valve’s open or closed position.

On the other hand, pneumatic actuators harness air pressure, transforming compressed air energy into linear motion. Unlike electric actuators which typically require a minimum 24V DC power supply, pneumatic actuators rely on air pressure sourced from a compressor.

Electric actuators are pivotal in automation systems, facilitating remote operation and precise motion control. In contrast, pneumatic actuators function manually and operate at a consistent speed. Understanding these differences is crucial for selecting the optimal actuator technology based on specific industrial or automation needs.