Woodward 5437-281 Fuel Metering Valve

Description

Woodward 5437-281 Fuel Metering Valve

Product Dimensions：

The Woodward Fuel Metering Valve (FMV) is a critical component in gas turbine control systems. It is designed to precisely regulate the flow of fuel to the turbine combustion system, ensuring stable engine operation, efficient combustion, and protection against overspeed or over-temperature conditions.

1. Product Detailed Description

The Woodward FMV typically operates as part of a larger fuel control skid. It is an actuator-driven valve that translates electrical signals from the Turbine Control Cabinet (such as a MicroNet or 2301D system) into precise mechanical valve positions.

Most modern Woodward FMVs utilize Electric Actuation (via integrated brushless DC motors) or Hydraulic Actuation, depending on the turbine size and fuel requirements. They often feature an integrated LVDT (Linear Variable Differential Transformer) to provide high-accuracy position feedback to the controller.

2. Technical Parameters (Typical)

While parameters vary by specific model (e.g., 3151, 3171, or GS6/GS16), typical specifications include:

3. Product Advantages

• High Precision: Offers exceptionally fine resolution for fuel flow, which is critical for maintaining “Dry Low Emissions” (DLE) levels.

• Fast Response: Capable of rapid slewing to handle sudden load changes or emergency shutdowns.

• Integrated Intelligence: Many models feature on-board diagnostics that monitor valve health and detect clogs or mechanical wear.

• Durability: Built with high-grade stainless steel and hardened internals to resist erosion from high-velocity fuel and contaminants.

• Modular Design: Easy to service; actuators can often be replaced without breaking the fuel line.

4. Key Considerations & Maintenance (Precautions)

• Fuel Cleanliness: The internal orifices are precision-machined. Ensure high-quality filtration (typically 10-micron or better) to prevent “stiction” or scoring of the valve seat.

• Calibration: Periodic “Span and Zero” calibration of the LVDT feedback is required to ensure the physical valve position matches the control signal.

• Seal Integrity: Regularly inspect for external leaks, especially in high-vibration environments.

• Electrical Grounding: Ensure proper shielding of signal cables to prevent EMI (Electromagnetic Interference) from affecting the valve position.

5. Product Applications

Woodward Fuel Metering Valves are used globally across various energy and industrial sectors:

• Power Generation: Main fuel control for GE, Siemens, and Solar gas turbines.

• Oil & Gas: Controlling turbines used for mechanical drives in gas compression and pumping stations.

• Marine Propulsion: Regulating fuel for aero-derivative engines on high-speed vessels.

• Combined Cycle Plants: Precise control of supplementary firing (duct burners).

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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