Woodward TG-13 8516-038 Turbine Governor | Mechanical-Hydraulic Speed Control

Woodward TG-13 8516-038 Mechanical-Hydraulic Turbine Governor

The Woodward TG-13 8516-038 delivers precision speed droop control for API 611 steam turbines in non-isochronous applications. This mechanical-hydraulic governor combines proven reliability with responsive performance, making it the preferred choice for critical industrial turbine installations worldwide.

Technical Specifications

• Model: TG-13 8516-038
• Control Type: Mechanical-Hydraulic Speed Droop
• Application: API 611 Steam Turbines (Non-Isochronous)
• Speed Sensing: Direct Rotor Speed Detection
• Control Function: Steam Flow Modulation
• Operating Principle: Centrifugal Force Sensing with Hydraulic Amplification
• Response Time: Fast-Acting Speed Correction
• Droop Setting: Adjustable Speed Regulation

Key Applications

Engineered for demanding industrial environments where precise turbine speed regulation is critical:

• Power generation facilities requiring load-sharing capability
• Petrochemical plants with mechanical drive turbines
• Refinery process units demanding stable speed control
• Industrial cogeneration systems
• Marine propulsion turbine installations
• Compressor and pump drive applications

How It Works

The TG-13 8516-038 continuously monitors turbine rotor speed through a centrifugal flyweight mechanism. When speed deviates from setpoint, the governor instantly adjusts steam valve positioning via hydraulic actuation, maintaining stable operation under varying load conditions. The speed droop characteristic enables multiple turbines to share load proportionally in parallel operation.

Performance Advantages

Proven Reliability: Mechanical-hydraulic design eliminates electronic failure modes, ensuring operation in harsh industrial conditions including high vibration, temperature extremes, and electromagnetic interference.

Rapid Response: Direct mechanical sensing provides instantaneous speed detection with minimal lag, enabling quick correction of speed transients during load changes.

Load Sharing Capability: Adjustable droop settings allow precise load distribution between multiple turbines operating in parallel configuration.

Maintenance Simplicity: Straightforward mechanical construction reduces complexity, enabling field technicians to perform routine maintenance without specialized electronic diagnostic equipment.

Common Questions

Q: Can this governor operate in isochronous mode?
A: The 8516-038 is specifically designed for speed droop (non-isochronous) applications. For isochronous control, consider our digital governor solutions.

Q: What hydraulic fluid is required?
A: Use turbine-grade mineral oil meeting ISO VG 32 specifications. Consult installation manual for complete fluid requirements.

Q: Is this compatible with existing TG-13 installations?
A: Yes, the 8516-038 maintains dimensional and functional compatibility with standard TG-13 mounting configurations.

Q: What calibration is required after installation?
A: Initial speed setpoint adjustment and droop calibration are performed during commissioning. Detailed procedures are provided in the technical manual.

Warranty & Support

Every Woodward TG-13 8516-038 governor includes a comprehensive 12-month warranty covering manufacturing defects and material failures. Our technical support team provides installation guidance, troubleshooting assistance, and application engineering consultation throughout the product lifecycle.

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