Description
The 8516-039 is a part number designating a specific variant of a Woodward turbine control system component, historically aligned with Woodward’s specialty engine or turbine speed governor and control line (such as the 505 or NetCon platform peripherals). These industrial modules are engineered to manage precise steam or gas turbine speed regulation, valve positioning, and load control functions within power generation and mechanical drive applications.
Technical Specifications
| Parameter | Specification / Value |
| Brand | Woodward |
| Part Number | 8516-039 |
| Equipment Class | Turbine Governor / Control System Component |
| Input Signals | Magnetic Pickups (MPU) or Proximity Probes for speed sensing (Verify with OEM configuration) |
| Output Interfacing | Actuator driver circuits (typically 4 to 20 mA or specialized proportional current) |
| Enclosure / Form Factor | Sub-rack chassis mount or dedicated panel assembly |
| Power Supply Requirements | System dependent (typically 24 V DC or 110/220 V AC base variants) |
| Target Application | Industrial steam turbines, gas turbines, or heavy-duty diesel engines |
Field Application and System Integration Notes
Speed Sensing and Frequency Inputs
The module processes high-frequency pulses from speed sensors to calculate precise RPM tracking.
- Jitter and Noise: Ensure that the coaxial cables running from the Magnetic Pickups (MPUs) to the 8516-039 terminal blocks are fully shielded and grounded at one end only (typically at the control chassis). Running these low-voltage signal lines near high-current generator leads will introduce electrical noise, leading to erratic speed signals and potential overspeed trip hazards.
- Clearance: Verify that the physical gap between the sensor face and the gear tooth conforms strictly to Woodward specifications (typically 0.55 to 0.83 mm) to maintain optimal signal amplitude across the full operational RPM band.
Calibration and Actuator Alignment
- Current Loops: When connecting the governor outputs to a hydraulic actuator or an electro-hydraulic converter (such as a Woodward CPC or VariStroke), check the internal jumper configuration of the 8516-039 module.
- Null Adjustments: Calibrate the mechanical null position of the actuator valve prior to commissioning the PID loop parameters within the software layer. Incorrect mechanical alignment will cause hunting or sluggish response curves during turbine synchronization phase.
Commercial and Procurement Data
- Product Condition: New Surplus (Original Factory Stock) or Refurbished/Tested Legacy Surplus.
- Standard Warranty: 12-month comprehensive depot warranty covering parts and labor.
- Estimated Lead Time: Typically ships within 3 to 5 business days depending on calibration and diagnostic verification schedules.
- Pricing Notice: Price is highly dependent on global hardware availability and exact revision compliance requirements. Contact our engineering sales desk for a formal, customized commercial quote.
