Woodward 5417-557 Fuel Isolation Valve

Description

Woodward 5417-557 Fuel Isolation Valve

Product Dimensions：

The Woodward Fuel Isolation Valve (FIV) is a critical component designed for industrial gas turbines. It serves as a safety and operational barrier, ensuring that fuel flow can be completely and reliably shut off when required.

Here is a detailed breakdown of the product in English.

Product Overview

The Woodward Fuel Isolation Valve is a high-performance, rotary-actuated valve typically used in gas turbine fuel systems. Its primary function is to provide a tight shut-off (Zero Leakage) of fuel gas to the turbine combustor during shutdown or trip conditions. It is engineered to handle high pressures and extreme environmental conditions while maintaining fast response times.

Technical Specifications

While specific parameters can vary based on the exact model (e.g., GS6, GS16, or specialized FIV series), typical specifications include:

• Fluid Type: Natural Gas, Synthesis Gas (Syngas), or specialized fuel gases.

• Maximum Operating Pressure: Typically up to 900–1200 psi (depending on frame size).

• Leakage Class: ANSI Class VI (Bubble Tight/Zero Leakage).

• Ambient Temperature Range: $-40^{circ}text{C}$ to $+100^{circ}text{C}$ (standard configurations).

• Response Time: Rapid closing times, often <100 milliseconds for emergency shutdown.

• Actuation: Electrically or hydraulically actuated (Woodward ProTech-G or similar drivers).

• Materials: High-grade Stainless Steel or Carbon Steel body with specialized coatings for wear resistance.

Key Advantages

• Zero Leakage Performance: Designed to meet the strictest safety standards for fuel isolation, preventing fuel migration into the turbine during standstill.

• High Reliability: Features a robust mechanical design with few moving parts, reducing the Mean Time Between Failures (MTBF).

• Contamination Resistance: The valve internals are designed to handle “dirty” gas or particulates common in industrial fuel lines without seizing.

• Precise Integration: Seamlessly integrates with Woodward MicroNet and Atlas control systems for digital monitoring and diagnostics.

• Compact Footprint: High flow capacity relative to its physical size, making it easier to install in tight turbine enclosures.

Application Areas

• Power Generation: Main fuel shut-off for heavy-frame gas turbines (e.g., GE, Siemens, Mitsubishi).

• Oil & Gas: Fuel control for mechanical drive turbines used in pumping or compression stations.

• Combined Cycle Plants: Used in both the primary gas turbine and auxiliary firing systems.

• Emergency Shutdown (ESD) Systems: Acts as the final safety element in fuel delivery skids.

Important Considerations & Maintenance

1. Seal Inspection: Despite its “Zero Leakage” rating, seals should be inspected periodically for erosion caused by high-velocity gas particulates.

2. Actuator Calibration: Ensure the actuator is calibrated to the control system to prevent “water hammer” effects or mechanical stress during rapid cycles.

3. Filtration: It is highly recommended to install a 10-micron (or better) filter upstream of the valve to extend the life of the seating surfaces.

4. Hazardous Locations: Ensure the specific model matches the site’s explosion-proof ratings (ATEX, IECEx, or CSA certifications).

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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