Turbine & Engine Speed Control Solution – WOODWARD 9907-252 | EG3P Governor Series
Where This Product Is Used
The WOODWARD 9907-252 is a precision speed control governor module from Woodward’s EG3P series, engineered for demanding industrial prime-mover applications. It is widely deployed in:
- Gas & Steam Turbine Power Plants — Maintains stable shaft speed under variable load conditions, protecting generator synchronization.
- Diesel & Gas Engine Generator Sets — Provides isochronous or droop speed control for standby and prime power gensets.
- Oil & Gas Processing Facilities — Controls compressor and pump drive engines in upstream, midstream, and downstream operations.
- Marine Propulsion Systems — Governs main propulsion engines and auxiliary power units aboard vessels.
- Industrial Cogeneration (CHP) Plants — Coordinates speed and load sharing between multiple prime movers.
- Pulp & Paper / Mining / Petrochemical Plants — Drives critical rotating equipment requiring tight frequency regulation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 9907-252 |
| Manufacturer | WOODWARD |
| Series | EG3P Governor |
| Product Type | Speed Control Module |
| Control Mode | Isochronous / Droop Speed Control |
| Input Signal | Magnetic Pickup (MPU) Speed Sensing |
| Output | Actuator Drive Signal (EG Series Actuator Compatible) |
| Power Supply | 12–24 VDC (refer to OEM documentation for exact range) |
| Operating Temperature | -40°C to +70°C |
| Weight | 1,400 g (approx.) |
| Enclosure / Form Factor | Panel-mount module |
| Communication | Analog I/O; compatible with Woodward EG actuator family |
Note: Always verify specifications against the official Woodward 9907-252 product manual before integration.
Why Engineers Specify This Model
- Proven EG3P Platform — Decades of field-proven reliability in harsh industrial environments worldwide.
- Precise Frequency Regulation — Tight speed droop control ensures grid-quality power output from generator sets.
- Broad Actuator Compatibility — Direct interface with Woodward EG series electro-hydraulic actuators, minimizing integration complexity.
- Robust Environmental Rating — Designed for wide temperature ranges and vibration-prone installations.
- OEM-Specified Replacement — Drop-in replacement for existing 9907-252 installations with no re-engineering required.
- Simplified Commissioning — Onboard adjustment potentiometers for speed setting, droop, and gain without external tools.
Complete System Bill of Materials
For a fully functional Woodward EG3P speed control system, the following components are typically required:
- WOODWARD 9907-252 — Speed Control Module (this item)
- Woodward EG Series Actuator (e.g., EG-3P, EG-6P) — Electro-hydraulic fuel control actuator
- Magnetic Pickup Unit (MPU) — Engine speed sensing (e.g., Woodward 9905-466 or equivalent)
- 24 VDC Power Supply — Regulated panel power source
- Load Sharing Module (optional) — For parallel generator operation (e.g., Woodward 9907-018)
- Remote Speed Setting Potentiometer — Operator interface for speed trim
- Shielded Signal Cable — For MPU and actuator wiring
Compliance & Industry Standards
- Designed and manufactured under Woodward’s ISO 9001-certified quality management system.
- Suitable for applications requiring compliance with IEC 61511 (Functional Safety) when integrated with appropriate SIL-rated system architecture.
- Compatible with installations governed by NFPA 37 (Stationary Combustion Engines) and API 670 (Machinery Protection) frameworks.
- Marine variants may be certified to DNV GL / Lloyd’s Register / ABS class requirements — confirm with your classification society.
Quality Assurance & Sourcing
Konmask.com sources the WOODWARD 9907-252 through verified industrial surplus and authorized distribution channels. Every unit offered is subject to:
- Visual & Physical Inspection — Checked for label integrity, connector condition, and absence of physical damage.
- Traceability Documentation — Original manufacturer labels and lot codes preserved where available.
- Secure Anti-Static Packaging — Shipped in ESD-safe packaging with moisture barrier protection.
- Condition Disclosure — New, New Surplus, or Refurbished status clearly stated per listing.
We do not sell counterfeit or unauthorized replica parts. All products are sourced with full traceability.
How to Source This Part
- Add to Cart — Click “Add to Cart” and proceed to checkout for immediate online purchase.
- Request a Quote — For bulk orders, project procurement, or freight inquiries, email support@konmask.com.
- Lead Time — In-stock units ship within 1–3 business days. Ex-stock lead times vary; contact us for availability confirmation.
- Global Shipping — We ship worldwide via DHL, FedEx, and UPS with full export documentation support.
- Payment — Accepts T/T (wire transfer), PayPal, and major credit cards. Net terms available for qualified accounts.
Application-Specific FAQ
Q: Is the WOODWARD 9907-252 compatible with my existing EG actuator?
A: The 9907-252 is designed for use with Woodward EG series electro-hydraulic actuators. Confirm your actuator model against Woodward’s compatibility matrix or contact our technical team.
Q: Can this module be used for load sharing between parallel generators?
A: The 9907-252 provides droop speed control which supports passive load sharing. For active isochronous load sharing, a dedicated Woodward load sharing module (e.g., 9907-018) is recommended in parallel.
Q: What is the difference between isochronous and droop mode on this unit?
A: In isochronous mode, the governor maintains constant speed regardless of load. In droop mode, speed decreases slightly as load increases — essential for stable parallel operation of multiple generators.
Q: Do you provide the Woodward 9907-252 installation manual?
A: We can provide available technical documentation upon request. Contact support@konmask.com with your order reference.
Q: What warranty applies to this part?
A: Konmask.com offers a standard 90-day warranty against defects in material and workmanship for new surplus units. Terms vary for refurbished stock — see our warranty policy for details.
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