The Woodward UG Governor (widely known as the UG-8) is an industry-standard mechanical-hydraulic governor for controlling diesel, gas, or dual fuel engines and steam turbines. With worldwide acceptance and decades of field-proven reliability, the UG provides extremely reliable speed control with isochronous or droop operation across the full drive speed and temperature range.

Key Features
UG-Dial
- Constant speed applications
- Knob speed settings for easy generator synchronization
- Motor speed setting available for remote synchronization
- Adjustable droop for precise load sharing between engines
UG-Lever
- Variable speed control applications
- Mechanical remote speed setting via lever
- Pneumatic speed setting option
- Special attachments for diverse applications
Common Features
- Three work outputs: 7.1, 13.2, and 15.9 N·m (5.2, 9.7, 11.7 lb-ft)
- UG-5.7/UG-8: 827 kPa (120 psi) operating pressure
- UG-10: 1,034 kPa (150 psi) for higher work output
- UG-5.7: reduced servo piston for quicker response
- Dashpot pressure compensation for isochronous operation
- Adjustable needle valve matches governor to engine dynamics
- Internal oil pump, relief valve, accumulator, and oil sump
- Check valves for CW or CCW drive rotation
- Industry standard — worldwide service availability
Applications
- Diesel, gas, and dual fuel engines
- Steam turbines
- Generator drive with synchronization and load sharing
- Variable speed pump and compressor drive
- Applications requiring proven, field-standard governing
Drake Controls Services
Drake Controls is a Woodward Authorized Distributor. We stock UG governors in all configurations and provide repair, overhaul, and field support. The UG-8 is one of the most widely serviced governors in the industry. For repair or overhaul, submit a repair request or email service@drakecontrols.com.
