Woodward 8522-446 Actuator Assembly

Product Brief Introduction Electro-hydraulic / electromechanical actuator assembly for prime mover governing system, responsible for regulating fuel or gas valve opening to control prime mover power output according to controller commands.
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Technical Specifications 24VDC control input; integrated position feedback transducer; wide operating temperature; robust mechanical structure for industrial environment.

Functional Features Continuous stroke adjustment, position closed-loop feedback, stroke limit protection, mechanical overload protection.

Application Scenarios Medium and large gas engine and diesel engine fuel regulation systems.

Performance Parameters Fast dynamic response, high positioning accuracy, low hysteresis, strong resistance to mechanical vibration.

Structural Characteristics Integrated metal enclosure, internal drive assembly and position sensor, dedicated wiring terminals for control and feedback signals.

Working Principle Receive control signal from actuator driver board, drive internal mechanical transmission components to adjust valve opening, and feed real-time position signal back to the control system to realize closed-loop flow regulation.

Installation Requirements Rigid mounting on valve body, ensure mechanical linkage is free of binding; use shielded cable for position feedback signal.

Usage Notes Calibrate zero and full stroke during commissioning; check mechanical wear and connector tightness periodically.




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