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Woodward 8904-944

Product Name:​ 1907 Small Gas Valve (Valve Only)
Product Introduction:​ This valve is a Woodward 1907 series small gas valve product, part number 8904-944, supplied as valve only.
Technical Specifications:
  • Part Number: 8904-944

Detailed content

  • Manufacturer: Woodward
  • Series: 1907 Series
  • Device Type: Small Gas Valve / Gas Metering Valve
  • Configuration: Valve Only
Functional Features:
  • Precise gas flow regulation to meet industrial turbine control requirements
  • Valve port design validated over long-term use, with stable and repeatable flow characteristics
  • Simple and compact structure, reducing installation space requirements
  • Standardized interface design for easy integration with various actuators and control systems
  • Mature and reliable sealing technology adapted to continuous operation duty
Application Scenarios:
  • Small industrial gas turbines
  • Distributed power generation and combined heat and power projects
  • Gas engine fuel supply systems
  • Gas metering control in industrial processes
  • Standby and emergency gas generator sets
Performance Parameters:
  • Working Medium: Clean natural gas or equivalent gas fuel
  • Gas Filtration Requirement: 25 micron absolute
  • Working Pressure Range: Complies with industrial gas system standard specifications
  • Flow Capacity: Matches small to medium turbine requirements
  • Ambient Temperature Range: -20°C to +80°C
Material Composition:
  • Valve Body: Precision cast aluminum alloy or stainless steel
  • Metering Spool: Surface-hardened wear-resistant alloy steel
  • Sealing System: Gas-resistant fluorocarbon rubber (FKM) elastomer
  • Connectors: High-strength corrosion-resistant alloy steel fasteners
Structural Features:
  • Precision metering port ensures accurate correspondence between flow and valve position
  • Standard pipe connection ports for easy field piping construction
  • Actuator mounting datum face precision machined
  • Smooth internal flow passages with excellent pressure drop characteristics
  • Overall anti-vibration structure design, validated for reliability
Working Principle:​ System gas enters the valve through the inlet port and flows to the combustion system through the metering port.
Installation Requirements:
  • Install according to valve body marked flow direction and orientation
  • Configure gas filters of specified accuracy upstream and downstream of valve body
  • Select installation location considering actuator assembly and maintenance space
  • Provide independent support for piping to prevent mechanical stress acting on valve body
  • Complete system purge, leak test and stroke verification before commissioning
Usage Precautions:
  • Ensure gas filtration system remains effective; replace filter elements regularly
  • Strictly follow gas system safety and explosion-proof operating procedures
  • Regularly inspect valve sealing and connection point conditions
  • Avoid over-pressure, over-temperature and abnormal pulsation conditions
  • Seal inlet and outlet when in long-term storage; keep in dry and ventilated environment

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