Woodward TG-13 Mechanical-Hydraulic Governor

Product Description: Woodward TG-13 is a self-contained mechanical-hydraulic speed droop governor for small steam turbines and reciprocating engines. It integrates internal oil pump, sump and accumulator relief valve system, using the same lubricating oil as the host machine. It provides stable speed regulation with droop characteristic, and is widely used as critical spare part for turbine speed control systems. TG-13 outputs 16 N·m (12 lb-ft), while TG-17 is the higher torque sibling model.

Features

• Self-contained hydraulic design with built-in oil sump and sight glass for oil level check
• Rated output torque: 16 N·m (12 lb-ft), terminal shaft extends on both sides
• Speed droop control mode; standard screw speed setting, optional pneumatic speed set (3–15 psi)
• Available speed ranges: 1100–2400 rpm, 2400–4000 rpm, 4000–6000 rpm
• Internal accumulator maintains stable hydraulic pressure during transient load changes
• Weather-resistant aluminum housing, suitable for harsh field environments
• Simple installation, normally compatible with original mounting pad and linkage
• Legacy model; Woodward has scheduled last-time-buy cutoff, overhaul service available

Application Scenarios

• Small steam turbine speed governing
• Reciprocating engine / Ajax engine genset control
• Turbine-driven pumps, fans and compressors
• Industrial power plant auxiliary turbine control
• Legacy mechanical governor replacement and maintenance projects

FAQ

Q: What is the difference between TG-13 and TG-13E?
A: TG-13 is mechanical-hydraulic droop governor; TG-13E is electro-hydraulic actuator that accepts electronic control signal.

Q: Does TG-13 support isochronous constant speed control?
A: No, it is designed for speed droop control, not for isochronous operation.

Q: What is the torque rating of TG-13?
A: 16 N·m (12 lb-ft), TG-17 is 23.7 N·m (17.5 lb-ft).

Q: Can it use engine lube oil?
A: Yes, it can share the same lubricating oil as the turbine or engine.