The Woodward SA-4389 is a high-precision proportional actuator engineered for critical motion control applications in turbines, engines, and industrial systems. This actuator converts electrical control signals from governors or control systems into precise mechanical motion, enabling accurate positioning of fuel valves, throttle plates, or other control elements. It features advanced proportional technology that ensures smooth and responsive operation, even under varying load conditions and harsh environments. The actuator is built with robust materials to withstand high temperatures, vibration, and exposure to industrial contaminants. It offers seamless integration with Woodward’s control systems and supports real-time feedback for closed-loop control applications. Typical uses include gas and diesel engine fuel management, steam turbine throttle control, and industrial process automation where precise and reliable actuation is essential for efficiency, safety, and performance. The SA-4389 exemplifies Woodward’s commitment to delivering durable and precision-engineered components for demanding applications.

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