8277 Series Inlet Guide Vane Actuator

  • 8277 Inlet Guide Vane Actuator

    8277 Inlet Guide Vane Actuator

Used for Inlet Guide Vane (IGV) positioning and control of industrial or utility large frame gas turbines, the 8277 Series Severe Service Hydraulic actuators will force the IGV’s closed in the event of a turbine trip. Ruggedized and proven to withstand the harsh control conditions associated with high dither rates.

The actuator incorporates a hydraulic trip mechanism. The trip valve mechanism consists of a two-position directional control spool valve in series between the servo valve and the hydraulic cylinder. The porting of the directional control valve is such that, in the trip position, the servo valve is isolated from the cylinder and hydraulic fluid is diected to extend the actuator, closing the IGV. The trip valve connects the servo valve ports to the cylinder ports, in the run position.

  • Hydraulic servo actuator with dual LVDT’s
  • Compact integrated manifold containing servo, trip and filter
  • 1200 to 1700 PSI hydraulic pressure
  • Modular design for different cylinder sizes
  • Strokes range from 1.8" to 3.94" per the ATP listing
  • ANSI valve body rating: 300#
  • Slew time of 5 +/- 1 seconds
  • High force actuator: Force range from 20,000 lbf. to 40,000 lbf.
  • Fluid temperature: 50°F to 150°F
  • Certified to North American and European standards for use in hazardous locations.

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