Woodward 8915-057

Digital guide

Product Name: Small Gas Fuel Valve

Product Introduction: The 8915-057 is a small gas fuel valve product from Woodward’s 1907 small gas valve family, used for gas fuel metering in industrial gas turbines, gas engines and similar prime movers. As a member of the 1907 series, it shares the same precision metering port principle and standardized actuator interface with other valves in the family.

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Detailed content

Technical Specifications:

Part Number: 8915-057
Manufacturer: Woodward
Product Category: Small Gas Fuel Valve
Series: 1907 Series

Functional Features:

Precision gas flow metering for turbine fuel control
Stable and repeatable flow characteristics
Compact structure adapting to space-constrained installations
Standardized actuator interface for integration with Woodward TM or EM series actuators
Proven sealing technology for long-term leak-free operation

Application Scenarios:

Small and medium industrial gas turbine fuel systems
Gas engine fuel metering
Distributed energy and microgrid gas fuel supply
Combined heat and power systems
Industrial process gas metering

Performance Parameters:

Working Medium: Natural gas or treated clean gas fuel
Gas Filtration Requirement: 25 micron absolute
Ambient Temperature Range: -20°C to +80°C

Material Composition:

Valve Body: Aluminum alloy or stainless steel precision casting
Metering Spool: Hardened wear-resistant alloy steel
Seals: Gas-resistant fluorocarbon rubber (FKM) elastomer
Fasteners: High-strength corrosion-resistant alloy steel

Structural Features:

Precision metering port with flow proportional to valve position
Standard pipe connection ports
Precision-machined actuator mounting interface
Smooth internal flow passages for low pressure loss
Anti-vibration structure validated for dynamic environments

Working Principle: Gas enters through the inlet port, passes through the precision metering port, and flows to the combustion system. The external actuator receives control system commands and drives the spool to change the opening, thereby precisely regulating the gas flow cross-sectional area. The precise geometric relationship between port area and actuator position ensures that gas flow varies proportionally with the command signal.

Installation Requirements:

Install according to flow direction and orientation marked on valve body
Configure gas filters of specified accuracy upstream and downstream of valve body
Select installation location facilitating actuator and electrical wiring layout
Provide independent support for piping to avoid stress transfer to valve body
Complete system purge, leak test and full-stroke test before commissioning

Usage Precautions:

Maintain gas cleanliness; inspect and replace filters regularly
Follow gas system safety and explosion-proof regulations during installation and maintenance
Regularly inspect external valve sealing and connection fastener condition
Do not operate under over-pressure or out-of-temperature-range abnormal conditions
Perform leak test and functional verification before re-commissioning after long-term shutdown