Woodward 9907-331 Gas Valve

Description

Woodward 9907-331 Gas Valve

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Woodward is a global leader in the design and manufacture of energy control solutions. Their Gas Fuel Metering and Control Valves (such as the GS series, TecJet series, and SonicFlo™) are the industry standard for industrial gas turbines and reciprocating engines.

Below is a detailed technical overview of Woodward Gas Valve products.

1. Product Overview (Product Description)

Woodward gas valves are high-precision, electronically or hydraulically actuated valves designed to meter gaseous fuel to prime movers.

• GS Series (GS6, GS10, GS16, GS40/50): Rotary-style valves with integrated actuators and on-board digital drivers. They are known for “shear-type” metering that cleans itself during operation.

• TecJet™ Series: Intelligent electronic gas metering valves specifically for gas engines. They feature integrated sensors that automatically compensate for changes in gas pressure and temperature.

• SonicFlo™ & GCV: High-capacity valves often used in large-scale power generation turbines, focusing on choked-flow precision and fast shutdown capabilities.

2. Technical Parameters (Typical Specifications)

Parameters vary by specific model (e.g., GS6 vs. GS50), but standard ranges include:

3. Product Advantages

• Self-Cleaning Design: The “shear-action” metering prevents the buildup of gas condensates, contaminants, and debris that can stick to other valve types.

• Integrated Intelligence: Many models (like TecJet) have on-board microprocessors that calculate mass flow in real-time, simplifying the requirements for the main engine controller.

• Digital Accuracy: Eliminates mechanical linkages between the actuator and valve, reducing hysteresis and wear.

• High Reliability: Features redundant position feedback (LVDTs or Resolvers) and fail-safe spring-return mechanisms for emergency shutdowns.

• Environmental Resilience: Built for hazardous locations with ATEX, UL, and CSA certifications for Class I, Div 1 or 2 environments.

4. Key Precautions (Safety & Maintenance)

• Electrostatic Discharge (ESD): On-board electronics are sensitive. Always discharge body static before touching connectors or internal boards.

• Filtration: Gas must be filtered to the manufacturer’s spec (usually 25–50 microns). Solid particles can score the metering sleeve and cause leakage.

• Mounting Orientation: Some valves have specific mounting requirements to ensure the overboard vent or drain functions correctly.

• Electrical Power: Ensure the power supply can handle peak transient currents (often much higher than steady-state current) during rapid valve movements.

• Shutdown Systems: Do not rely solely on the metering valve for safety; always use a dedicated, independent Safety Shutoff Valve (SSOV) in the fuel line.

5. Typical Applications

• Power Generation: Main fuel control for industrial gas turbines (from 200 kW to 100+ MW).

• Oil & Gas: Gas compression stations and mechanical drive applications.

• Reciprocating Engines: Single-point or port injection for lean-burn gas engines.

• Renewable Energy: Control systems for biogas, landfill gas, and hydrogen-blended fuel operations.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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