{"product_id":"woodward-8405-809-proact-75-series-electric-valve-actuator","title":"Woodward 8405-809 ProAct 75 Series Electric Valve Actuator","description":"\u003ch3\u003e\n\u003cstrong\u003eOverview\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e8405-809\u003c\/strong\u003e electric actuator from \u003cstrong\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eWoodward\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e belongs to the ProAct™ 75 Series and is engineered for precise rotary control of butterfly valves used in diesel and gas engine systems. Designed as a fully electric solution, it replaces hydraulic or pneumatic actuation, simplifying system architecture while improving response accuracy and long-term reliability.\u003c\/p\u003e\n\u003cp\u003eThis actuator delivers bidirectional rotary motion with high torque density, making it suitable for throttle, air, or bypass valve control under rapidly changing load conditions.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eFunctional Characteristics\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e8405-809\u003c\/strong\u003e provides closed-loop electric actuation optimized for engine air and fuel management. Its internal motor and feedback design ensure stable valve positioning even during transient events such as load acceptance, shedding, or parallel operation.\u003c\/p\u003e\n\u003cp\u003eThe actuator is intended to operate with external electronic governors rather than as a standalone controller, forming part of a coordinated engine control system.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\nManufacturer: Woodward\n\u003c\/li\u003e\n\u003cli\u003e\nModel \/ Part Number: \u003cstrong\u003e8405-809\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\nProduct Family: ProAct™ 75 Series\n\u003c\/li\u003e\n\u003cli\u003e\nActuator Type: Electric rotary valve actuator\n\u003c\/li\u003e\n\u003cli\u003e\nControl Function: Butterfly valve positioning for air, fuel, or bypass flow\n\u003c\/li\u003e\n\u003cli\u003e\nMotion: Bidirectional rotary output\n\u003c\/li\u003e\n\u003cli\u003e\nPower Supply: DC input (system-dependent, typically 24 VDC)\n\u003c\/li\u003e\n\u003cli\u003e\nPosition Feedback: Integrated internal feedback (potentiometric or resolver-based depending on revision)\n\u003c\/li\u003e\n\u003cli\u003e\nControl Interface: Analog or digital command via compatible Woodward governor (no native Ethernet interface on actuator itself)\n\u003c\/li\u003e\n\u003cli\u003e\nMechanical Construction: Compact aluminum housing, industrial-grade sealing\n\u003c\/li\u003e\n\u003cli\u003e\nInstallation Orientation: Shaft-coupled butterfly valve mounting\n\u003c\/li\u003e\n\u003cli\u003e\nEnvironmental Rating: Designed for engine-mounted industrial environments\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e8405-809\u003c\/strong\u003e is designed to work in conjunction with Woodward engine controllers and governors, including but not limited to:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n2301D Digital Speed and Load Controllers\n\u003c\/li\u003e\n\u003cli\u003e\nProAct™ governor systems\n\u003c\/li\u003e\n\u003cli\u003e\n723PLUS Digital Control platforms\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt relies on the governor for command logic, speed control algorithms, and load management functions.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eThis actuator is commonly deployed in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\nEngine-driven generator sets\n\u003c\/li\u003e\n\u003cli\u003e\nMarine propulsion and auxiliary engines\n\u003c\/li\u003e\n\u003cli\u003e\nIndustrial gas and diesel engines\n\u003c\/li\u003e\n\u003cli\u003e\nCompressor and pump drive systems\n\u003c\/li\u003e\n\u003cli\u003e\nSmall turbine auxiliary valve control\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts electric-only architecture is especially advantageous in installations where hydraulic infrastructure is undesirable or impractical.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eFAQ\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ch3\u003e\n\u003cstrong\u003eIs the 8405-809 a standalone controller?\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eNo. The \u003cstrong\u003e8405-809\u003c\/strong\u003e is an actuator only. It requires an external electronic governor or controller to generate position commands and manage control logic.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eDoes this actuator communicate directly via Ethernet?\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eNo. Communication is handled by the connected Woodward governor or control system. The actuator itself operates through electrical command and feedback signals.\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eWhat type of valves is it designed for?\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003eIt is optimized for butterfly valves used in throttle, air intake, exhaust bypass, or similar flow control applications.\u003c\/p\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":52762099777821,"sku":"8405-809","price":9.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/5387\/3181\/files\/8405-809-2_1000.jpg?v=1787222500","url":"https:\/\/www.6gcontrols.com\/products\/woodward-8405-809-proact-75-series-electric-valve-actuator","provider":"6G Controls","version":"1.0","type":"link"}