Description
The part number 8256-016 specifies a Woodward EPG (Electrically Powered Governor) Rotary Actuator (Model 1724 variant).
Technical Specifications
| Feature | Specification |
| Manufacturer | Woodward |
| Series | EPG (Electrically Powered Governor) / Model 1724 |
| Operating Voltage | 24 VDC (Range: 20–32 VDC) |
| Work Capacity | 2.3 J (1.7 ft-lb) over 35° of full governor travel |
| Output Shaft | 0.375″-36 SAE serrated shaft on either end |
| Operating Temperature | -40°C to +93°C (-40°F to +199°F) |
| Construction Material | Treated aluminum and steel (Corrosion-resistant) |
| Compatible Applications | Diesel, gas, or gasoline engines and gas turbines (commonly used with Caterpillar and similar industrial engine setups) |
Product Overview
The 8256-016 is a robust 24V rotary actuator designed to function as part of a three-component EPG governing system (which typically includes the actuator, an electronic speed control unit, and a magnetic pickup). It provides precise fuel control for engines without requiring a mechanical drive or an external hydraulic supply.
Key Features:
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Accurate Speed Control: Supports single-phase isochronous or droop control configurations for load-sharing capabilities in parallel operations.
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Maintenance-Free Design: Operates entirely electronically with no mechanical linkages to hydraulic systems, minimizing wear and tear.
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Rugged Build Quality: Built to withstand harsh industrial environments, featuring high vibration resistance and specialized corrosion-resistant internal/external treatments.
8256-016
Core Performance Features
• 24 VDC operating power, designed for engine-mounted installation environments
• Precise rotary output drives fuel control linkage, stable adjustment of fuel flow
• Built-in position feedback signal, convenient for closed-loop position monitoring
• Robust mechanical structure, withstands engine vibration and wide temperature variation
• Compatible with Woodward EPG series electronic speed controllers
• Supports two typical control modes: isochronous speed control and droop control for parallel generators
• Sealed housing construction, good dust and moisture resistance
• Standard mounting flange layout, easy field replacement during equipment overhaul
Typical Application Scenarios
Land-based & Offshore Generator Sets
Speed control for diesel/gas engine synchronous generator units.
Oil & Gas Compressor Stations
Prime mover governing for gas engine-driven compressors.
Industrial Emergency Power Generators
Constant speed regulation for standby power equipment.
Engine Control System Retrofit & Spare Replacement Projects
Standard spare actuator for existing Woodward EPG governing systems.
