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We Make Valve Automation Easy
We Make Valve Automation Easy
pneumatic valve actuator


C Series Pneumatic Valve Actuators

The Assured Automation C Series pneumatic actuators offer a simple and cost effective solution for your valve automation needs. For use on quarter turn (90°) ball valves, plug valves, dampers, and butterfly valves. The dual, opposed rack pistons have low friction bearings and guides that provide high-performance, long cycle-life, and fast response. These pistons can be inverted to reverse the rotation for fail open applications.

These are rack and pinion style actuators which have even torque output through the entire 90° rotation of the stroke.


Rack and Pinion Design

Rack and Pinion Actuator Design

Features & Benefits

  • High duty cycle life, up to 1,000,000 cycles
  • Double acting and spring return models
  • Direct mounting to valve: DIN/ISO 5211, DIN 3337 (F03 to F16)
  • NAMUR solenoid and limit switch mounting
  • Diamond & square output drive on all units
  • Dual stroke adjustment standard on all units
  • Corrosion resistant coating
  • Visual Position Indicator (Open/Closed)

Typical Applications

  • Ball valves
  • Plug valves
  • Butterfly valves
  • Dampers



  • Body: Extruded aluminum alloy
  • End Caps: Powder coated die-cast aluminum
  • Pinion: 304 stainless steel
  • Pistons: Die-cast aluminum
  • Springs: High alloy spring steel
Direct Mount Connections
  • ISO 5211
  • Female drive shaft connection
Service Life
  • up to 1 million cycles
Temperature Range: (with dry air as control media)
  • BUNA (standard)
    -4°F to 175°F
  • Viton® (special order)
    -20°F to 248°F
  • Silcone (special order)
    -40°F to 176°F
Supply Pressure:
  • 40-120psi (spring return)
  • 20-120psi (double acting)
Torque Output:
  • up to 40,000 in/lbs. (with 80 psi control supply)
Control Media:
  • Dry, filtered compressed air, not necessarily lubricated. Any lubrication used must be NBR compatible.
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Please contact us to verify any information that is critical to your application..