The TRIAC® heavy duty scotch yoke actuator product line offers a broad range of torques to 1,600,000 in-lbs.
The TRIAC® heavy duty scotch yoke actuator product line offers a broad range of torques to 1,600,000 in-lbs. The THD series is designed to operate ball, butterfly, plug valves, dampers or any device that requires a quarter-turn movement for on-off or throttling service. Our standard offering is the symmetrical design yoke that delivers maximum torque at both ends of the 90º cycle. The square slide bearing with guide bar provides high cycle life and smooth stroke while minimizing wear points. Also available is a canted yoke design, which is ideal for butterfly valves in sizes C11 and larger.
As with all TRIAC® actuators, our THD series is accompanied by a complete line of accessories, including jackscrew & hydraulic overrides, limit switches, solenoids and positioners. A-T Controls also offers complete mounting hardware to integrate our actuators with any quarter-turn valve, damper or louver.