Valve Actuator Selection Guide: Pneumatic, Electric and Hydraulic Systems
This practical valve actuator selection guide explains how to select pneumatic, electric or hydraulic actuation by valve motion, operating torque or thrust, available utilities, fail action, control mode, duty, environment, mounting interface and package testing requirements.
Difference Between Single-Acting and Double-Acting Actuators
Compare single-acting and double-acting actuators by operating principle, fail-safe function, air consumption, torque output, control capability, maintenance, and application. Single-acting actuators use spring return for automatic fail-open or fail-close operation, while double-acting actuators use air or power in both directions to provide higher torque and more consistent control for demanding valve automation systems.