WOODWARD 8273-140 Proportional Actuator for Engine Speed and Throttle Control

The WOODWARD 8273-140 is widely used as a proportional electric actuator in engine control systems—typically paired with Woodward governors such as 2301A/2301D or EPG modules to position a fuel rack, throttle butterfly, or gas valve. From my experience, it’s chosen when teams need a dependable, drop‑in replacement that keeps gensets, compressors, or marine propulsion packages on spec without reworking the entire control cabinet. You might notice that it balances response speed and stability well, which in many cases translates into tighter speed regulation under load steps.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• Proportional electric actuation – Provides precise positioning of fuel or air control levers for stable speed and load sharing.
• Compatible with Woodward governors – Commonly paired with 2301A/2301D and EPG controllers using a proportional current drive.
• Robust build for harsh environments – Designed for industrial engines; typically handles vibration, oil mist, and temperature swings well.
• Fast response with good stability – Helps reduce droop and hunting, especially on gensets during step-load events.
• Simple mechanical linkage – Usually mounts near the fuel rack or throttle with standard linkage kits, reducing retrofit time.
• Service-friendly – Field-replaceable with minimal re-tuning when an identical part number is used.

Technical Specifications

Notes: Values below reflect typical characteristics for Woodward proportional actuators used with 2301/EPG governors; verify your nameplate and site documentation for exact parameters of 8273-140.

Application Fields

You’ll typically see the 8273-140 on standby and prime-power gensets, gas compression skids, marine propulsion or auxiliary engines, and industrial pumps/blowers. It’s a practical choice for retrofit projects where an older mechanical governor was replaced with a 2301-series controller, or when uniform speed control and better transient performance are required for parallel operation.

Advantages & Value

• Reliability – Built for continuous industrial duty; in most cases it runs for years with only linkage checks.
• Compatibility – Works with mainstream Woodward governors and existing linkage hardware, reducing engineering time.
• Cost control – A direct replacement avoids redesigning the control scheme or re-certifying the engine package.
• Supportability – Easy to commission; typical tuning is handled in the governor, not at the actuator.

Installation & Maintenance

• Mounting – Rigid bracket on the engine or skid; keep lever travel within the actuator’s rated stroke. Avoid binding in the linkage.
• Cabinet & wiring – If cabinet-mounted governor is used, route shielded cables to the actuator; keep power and signal separate to minimize noise.
• Ventilation & environment – Typical engine-room conditions are fine; avoid direct exhaust heat and oil pooling on the housing.
• Safety – De-energize 24 Vdc supply before adjustments. Verify fail-safe direction and spring return according to your shutdown logic.
• Routine checks – Quarterly: inspect linkage play, fasteners, and lever alignment. Annually: recalibrate governor output if drift is suspected, and clean connectors.
• Spare strategy – Keeping one identical 8273-140 on the shelf usually shortens outage time in critical facilities.

Quality & Certifications

• Manufacturing quality – Produced under ISO 9001 quality systems (typical for Woodward manufacturing sites).
• Compliance – CE conformity for industrial environments; RoHS applicability depends on regional variant.
• Warranty – 365-day warranty provided with supply.