Product Description
The GS6 gas fuel metering valve developed by Woodward is purpose-built for aeroderivative gas turbine fuel systems. It combines electronic actuation with an integrated position controller, enabling accurate and stable gas flow regulation under high-pressure operating conditions.
The internal architecture uses a single rotating shaft to integrate the metering element, actuator rotor, and resolver. This configuration reduces mechanical interfaces, improves response precision, and enhances long-term operational reliability in continuous-duty environments.
Core Technical Specifications
| Parameter | Specification |
|---|---|
| Model | GS6 |
| Valve Type | Electronic Gas Fuel Metering Valve |
| Maximum Supply Pressure | 750 psig (5170 kPa) |
| Operating Temperature | -40 °F to +200 °F (-40 °C to +93 °C) |
| Input Power | 24 VDC |
| Control System | Integrated electronic positioner |
| Position Feedback | Resolver (single or dual) |
| Mounting Standard | 1.5 inch SAE Code 61 flange |
| Mechanical Design | Single-shaft assembly |
| Optional Variant | Conduit entry driver |
Engineering Design Features
The GS6 utilizes a shear-type metering mechanism that continuously removes deposits from the metering surfaces during operation. This feature minimizes the risk of fouling caused by condensates or particulate matter in the gas stream.
Its integrated control electronics eliminate the need for external valve drivers or position controllers, reducing system wiring complexity and improving installation efficiency.
The compact structure and reduced number of moving parts contribute to improved durability and lower maintenance requirements over time.
Application Scenarios
Typical applications include:
- Aeroderivative gas turbines for power generation
- Oil and gas compression systems
- Industrial cogeneration plants
- Offshore turbine installations
This product is optimized for high-performance turbine systems and is not intended for general-purpose combustion equipment.
Installation and Operational Notes
A regulated 24 VDC power supply is required to ensure consistent actuator performance. System integration should include proper electrical protection and compatibility with turbine control logic.
While the valve incorporates a self-cleaning mechanism, periodic inspection is recommended to verify performance, particularly in environments with variable gas quality.
Frequently Asked Questions (FAQ)
Q: Does the GS6 require an external controller? A: No. The unit includes an onboard electronic position controller, reducing the need for additional control hardware.
Q: What type of feedback signal does it provide? A: Resolver-based feedback is available, with optional dual resolver configuration for redundancy.
Q: How does the valve handle gas contamination? A: The shear-type metering design actively prevents buildup, maintaining consistent flow accuracy.
