8516-039 Woodward TG‑13 Mechanical-Hydraulic Turbine Governor

Product Description
8516-039 is Woodward TG-13 series mechanical-hydraulic turbine governor, manufactured in USA. It follows API-611 standard for small and medium steam turbines. This governor adopts pure mechanical hydraulic structure with built-in oil sump, no external hydraulic oil supply required. It uses centrifugal flyweight to sense rotating speed, and converts speed deviation into mechanical output to adjust steam valve opening for closed-loop speed regulation. It is an obsolete legacy spare part for turbine maintenance retrofit.

Key Features

• Self-contained integrated oil tank and hydraulic pump, independent hydraulic pressure generation
• Centrifugal flyweight speed sensing, fast hydraulic amplification, direct mechanical output shaft
• Speed adjustment range 2400–4000 RPM, counterclockwise drive shaft rotation
• Stable speed droop setting, capable of load sharing for parallel generator units
• Heavy-duty rugged housing, suitable for high temperature and vibration turbine site environment
• No electronic circuit, strong anti-interference; widely used on old steam turbine units
• EOL product, factory last-time-buy cutoff, only available as spare and overhaul service

Application Scenarios

• Industrial back-pressure steam turbines, power generation co-generation turbine sets
• Petrochemical, refinery turbine-driven pumps and compressors
• Paper mill, sugar plant and metallurgy process steam turbine drive equipment
• Old turbine unit spare replacement, overhaul and technical renovation projects

FAQ

Q: Is 8516-039 an electronic digital governor?
A: No. It is mechanical-hydraulic governor without CPU or circuit board, fully mechanical hydraulic speed control.

Q: Does TG-13 governor need external hydraulic oil station?
A: No, it has built-in oil sump and oil pump, independent hydraulic oil circulation.

Q: Can this governor be repaired?
A: Woodward still provides overhaul service until 2031; new original units are no longer produced.