Quarter-turn (Part-turn) Electric Actuators / OM Series

Product Overview

Sun Yeh OM series quarter-turn (part-turn) electric valve actuators are reliable and durable rotary electric actuators designed to provide torque ranges from 35 Nm to 4500 Nm. Users can select the appropriate model according to specific load and valve requirements.

The planetary gearing incorporates a self-locking feature to prevent valves from being back-driven, ensuring stable, secure, and reliable operation. This robust gear design enhances torque transmission efficiency while maintaining precise rotary motion control, making the OM series an ideal solution for industrial rotary electric actuator applications.

An ISO 5211 flange connection is compatible with various valve types, while a raised mechanical position indicator enables operators to clearly identify the valve position at a glance. One of the most distinctive features of the OM series rotary electric actuator is its clutchless manual override design (except for the BM-2 and OM-A models). This design enables seamless switching from electrical control to manual operation without a clutch or brake system. The result is simplified operation, improved mechanical reliability, and reduced actuator failure rates.