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.
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.