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WOODWARD 8516-182: TG to TG611-17 Governor Conversion Kit (3200 RPM, CW, ATEX, w/ OTD)
The Woodward 8516-182 is a conversion kit specifically engineered to upgrade older Woodward TG mechanical-hydraulic governors (typically TG-17 models) to the advanced TG611-17 standard. This kit is tailored for applications requiring a clockwise (CW) rotation at a speed of 3200 RPM, and it includes a crucial Overspeed Test Device (OTD), all while maintaining ATEX compliance for hazardous environments.
Product Overview
- Product Type: Governor Conversion Kit
- Manufacturer: Woodward
- Primary Function: Upgrades existing TG governors to the TG611-17 standard, enhancing safety, performance, and compliance.
- Target Model: TG611-17 (Screw Speed Set)
- Rated Speed: 3200 RPM
- Rotation Direction: Clockwise (CW)
- Key Feature: Includes Overspeed Test Device (OTD)
- Environmental Compliance: ATEX compliant (suitable for potentially explosive atmospheres)
- Rated Speed @ 2% Droop: 3120 RPM
Detailed Description
Woodward mechanical-hydraulic governors are vital components for maintaining stable and safe operating speeds in turbine and other prime mover applications. To meet evolving industry standards and increasingly stringent safety regulations, upgrading older governor models is often a necessary step. The Woodward 8516-182 kit offers a robust and specific solution for this modernization.
This conversion kit transforms an existing TG governor into a more capable TG611-17 governor, integrating several critical features:
- Overspeed Test Device (OTD): This essential safety mechanism allows for safe, routine testing of the governor’s overspeed protection function. Operators can verify that the overspeed trip system is fully functional without putting the prime mover at risk by actual overspeeding. This significantly enhances operational safety and system reliability.
- ATEX Compliance: This certification is crucial for equipment operating in environments where explosive atmospheres may be present (e.g., in oil & gas facilities, chemical plants, or certain power generation sites). It confirms that the components meet stringent European Union directives for safety in hazardous locations.
- Clockwise (CW) Rotation: The kit is precisely engineered for governors with a clockwise drive shaft rotation. This specification is critical for proper mechanical integration and operation with the specific design of the turbine or engine being controlled.
- 3200 RPM Operation: Designed for applications involving medium to high-speed prime movers, this kit is compatible with governors operating at a rated speed of 3200 RPM.
- Speed Droop Control: The TG611-17 governor operates using a speed droop control characteristic. This feature is fundamental for stable load sharing when multiple prime movers and generators are operating in parallel, and it plays a vital role in maintaining overall grid stability.
Technical Specifications
| Technical Parameter | Value |
| Brand | Woodward |
| Model Number | 8516-182 |
| Product Type | Mechanical-Hydraulic Governor Conversion Kit |
| Primary Feature | Includes Overspeed Test Device (OTD) |
| Converted Model | TG611-17 (Screw Speed Set) |
| Rated Speed | 3200 RPM |
| Drive Shaft Rotation | Clockwise (CW) |
| Compliance/Certifications | ATEX Compliant |
| Rated Speed @ 2% Droop | 3120 RPM |
| Function | Upgrades old governors for improved safety & performance |
| Typical Application | Steam & Gas Turbines, Prime Movers |
Typical Applications
The Woodward 8516-182 conversion kit is primarily utilized in:
- Power Generation Facilities: For modernizing governors on steam or gas turbines that operate at 3200 RPM, ensuring continued safe operation and adherence to current standards.
- Oil & Gas Installations: Where prime movers control critical compressors or pumps in potentially hazardous environments, requiring precise speed control and ATEX compliance.
- Industrial Processes: For upgrading existing large industrial prime movers to enhance their speed governing capabilities and safety features.
Related Products
The 8516-182 kit is part of a broader series of Woodward TG governor conversion kits. Other kits in this series, offering variations based on speed, rotation, and specific droop settings, include:
- Woodward TG-13 and TG-17 Governors: These are the older mechanical governors that are upgraded by these conversion kits.
- Woodward TG611-13 and TG611-17 Governors: These are the modernized versions that the kits help achieve.
- WOODWARD 8516-178: A similar conversion kit for the TG611-17, 3200 RPM, CCW rotation, ATEX, with OTD (and the same rated speed of 3120 RPM @ 2% Droop). This indicates that 8516-178 and 8516-182 are a pair for CCW and CW rotation at this specific RPM and droop setting.
- Other kits like 8516-174, -175, -176, -177, -179, -180, -181 are generally for TG611-13 governors, with different RPMs (2400 or 4000) and various combinations of CW/CCW rotation and droop settings.
