Product Description
Woodward 9904-814 TG-13E Turbine Governor
- Manufacturer: Woodward
- Model/Part Number: 9904-814
- Description: TG-13E Mechanical-Hydraulic Speed Droop Governor, 2400–4000 RPM, 4035 RPM Rated Speed Droop at 2°, Counterclockwise Drive Shaft, 16 N·m (12 ft-lb) Output, for API611 Steam Turbines, ATEX Certified
Overview
- The Woodward 9904-814 is a TG-13E mechanical-hydraulic speed droop governor designed for API611 steam turbines driving pumps, compressors, or generators in applications where isochronous (constant-speed) operation is not required. It controls turbine speed by sensing rotor speed and adjusting inlet steam flow, offering a reliable and cost-effective solution for industrial power generation and mechanical drive systems. It is a direct replacement for the TG-13 model (e.g., 8516-038) without an overspeed test device (OTSD).
Technical Specifications
| Specification | Details |
|---|---|
| Model | 9904-814 (TG-13E) |
| Type | Mechanical-Hydraulic Speed Droop Governor |
| Speed Range | 2400–4000 RPM |
| Rated Speed Droop | 4035 RPM at 2° |
| Drive Shaft Rotation | Counterclockwise |
| Output Torque | 16 N·m (12 ft-lb) |
| Construction | Die-cast aluminum, weatherproof |
| Oil Supply | Self-contained sump, NEMA A |
| Operating Temperature | -40°C to +93°C (-40°F to +200°F) (estimated, based on Woodward standards) |
| Storage Temperature | -55°C to +105°C (-67°F to +221°F) (estimated) |
| Relative Humidity | 5% to 95%, non-condensing |
| Vibration | 4 G, 5–500 Hz |
| Shock | 20 G peak |
| Protection Rating | IP56 (weatherproof, estimated) |
| Weight | Approximately 12.7 kg (28 lb) |
| Mounting | Direct turbine mounting |
| Certifications | ATEX, HAZLOC |
| System Compatibility | API611 steam turbines, Woodward governor valves |
| Replaces | 8516-038 (TG-13 without OTSD) |