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8580 Series Aux/Stop Valves

The YF 8580 Series Aux/Stop Valve Assemblies provide fast and reliable shutoff of gas fuel flow to the combustion system of a large industrial or utility gas turbine.

  • Specs
  • Applications
  • Documents

YF 8580 Series Valves utilize a common design for 1″ to 10″ line size applications. 

Features

  • Rapid hydraulic actuation with +/- 8 mA servo command; +/- 60 mA servo command options available 
  • 1200 to 1700 psi hydraulic pressure (to 3000 psi for aux/stop valves) 
  • 0.7 to 3.5 Vrms LVDT feedback with 7.0 Vrms input 
  • RVDT feedback available for rotary valves; limit switch standard for aux/stop valves 
  • Independent electric or hydraulic trip valve 
  • Trip time:
    < 100 ms for up to 6″ valve
    < 200 ms for 8″ or larger valve 
  • Low pressure trip relay ( LP ): 100 psi 
  • High pressure trip relay ( HP ): 1600 psi 
  • Typical slew time:
    0.7 +/- .03 second;
    0.200 second slew time available for some models 
  • Designed for ease of service and maintenance 
  • Failsafe close 
  • Certified to North American and European standards for use in hazardous locations.

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