AH Series

AH Series

The Rotork AH Series high-cycle actuator is ideal for the demanding service found under precipitators on the ash hopper flap gates. The totally-enclose design eliminates the high maintenance cylinder or low-pressure canister actuators.

  • No exposed piston rod to draw fly ash into the cylinder
  • Compact / high torque output
  • Dual-opposed lip seals for long life
  • No ‘pinch points’ integral to the actuator
  • ‘No Play’ coupling to eliminate hysteresis and wear
  • 2-million stroke / 3 year performance warranty


  • Direct mount or remote mount solenoid valve
  • Discrete feedback limit switches
  • Manual override

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