TG611 Governors are self-contained, mechanical-hydraulic, speed-droop governors for use on small steam turbines driving pumps, compressors, or generators, where isochronous (constant speed) operation is not required. These governors are directly coupled to the steam-turbine’s rotor or auxiliary shaft to sense and control turbine speed. Designed for API-611- based turbine applications, these governors include a special Overspeed Test Device, allowing controlled and safe turbine overspeed trip testing.
“TG611 governors are mechanical-hydraulic speed-droop governors for controlling small steam turbines. These governors control turbine speed by sensing turbine rotor speed via their input drive shaft, comparing this speed to an internal speed setpoint, then using a rotary output terminal shaft connected to the turbine’s governor valve to control turbine inlet steam flow. This self-contained governor utilizes an integrated drive-shaft-driven ballhead assembly to sense turbine speed, and an integrated drive-shaft-driven oil pump to create the necessary output force to move/control the turbine’s governor
valve. The governor output is a serrated terminal shaft that extends out each side of the governor housing and rotates up to 40° to accurately control the turbine’s inlet steam valve(s).
- API 611 Compliant
- Low cost
- Speed droop controlIntegral overspeed test device
- Weatherproof
- Self-contained sump
- NEMA “”A”” speed control
- 16 and 23.7 N·m (12 and 17.5 lb-ft) outputs
- Designed for harsh environments
