The Woodward TG611 Governor is a self-contained mechanical-hydraulic speed-droop governor for small steam turbines driving pumps, compressors, or generators. Designed for API 611 turbine applications, it includes a special overspeed test device for controlled and safe turbine trip testing. Available in two work outputs: 16 N·m (12 lb-ft) and 23.7 N·m (17.5 lb-ft).
Key Features
Governor
- Mechanical-hydraulic speed-droop governor
- Self-contained with integrated drive-shaft-driven oil pump
- Centrifugal ballhead speed sensing via input drive shaft
- Speed setpoint via speed-setting screw on cover plate
- Work outputs: 16 N·m (12 lb-ft) or 23.7 N·m (17.5 lb-ft)
- Serrated terminal shaft with up to 40° rotation
- Three speed ranges available
Overspeed Test Device
- Integrated overspeed test device for safe trip testing
- Designed for API 611 turbine applications
- Controlled overspeed trip verification while maintaining safety
- Directly coupled to turbine rotor or auxiliary shaft
- Hydraulic power for high work output
Applications
- Small steam turbines (API 611)
- Pump and compressor drive
- Generator drive (speed-droop)
- Applications requiring periodic overspeed trip testing
Drake Controls Services
Drake Controls is a Woodward Authorized Distributor. We stock TG611 governors and provide repair, overhaul, and field support. For repair or overhaul, submit a repair request or email service@drakecontrols.com.