Rack & Pinion Pneumatic Actuators

2R Series: Rack & Pinion Actuators

TRIAC® pneumatic rack and pinion actuators are designed and manufactured to provide the highest cycle-life on the market. We can accessorize them to accomplish virtually any control requirement. They are available with various mounting dimension configurations and span eleven models for appropriate torque compatibility. 

    • Standard working temperature -5ºF to 175ºF
    • Low and high temperature options
    • Maximum working pressure 150 psig
    • Operating media: clean, dry air, non-corrosive gas or light hydraulic oil
    • Air supply 40 psi - 150 psi
    • Rotation 100º
  • Double Acting or Spring Return
  • Torques to 36,000 in. lbs.
  • Common end caps for DA and SR
  • Substantial pinion bearings mean high cycle life
  • Corrosion resistant hard-anodized aluminum finish
  • Standard accessory mounting; NAMUR, VDI/VDE 3845
  • Standard valve mounting pad: ISO 5211 (models TR10 - 2R3500)
  • Wide base for direct mount to many butterfly valves
  • Custom Mounting configurations available in quantity
  • Permanently lubricated units
  • Each unit serialized

Our extensive inventory and engineering capabilities allow us to respond to your needs with flexibility. We pride ourselves on exceeding customer expectations. Contact us for application assistance.

Stainless Steel Rack & Pinion Actuators

TRIAC® Stainless Steel Rack and Pinion Actuators offer an economical solution to harsh chemical environments and the corrosion resistant requirements of the pharmaceutical, food, beverage, pulp and paper, and petrochemical industries. Contact us for application assistance.

  • 316 Stainless Steel body, pinion and pistons
  • ISO5211 mounting dimensions
  • NAMUR accessory mounting
  • Electropolish finish
  • Double acting and spring return
  • Standard working temperature -20ºF to 175ºF
  • Maximum working pressure 150 psig
  • Permanently lubricated


180º Pneumatic Rack & Pinion Actuators

With torques from 370 in-lbs to 9300 in-lbs, the TRIAC® 180-AL Series Actuators are ideal for multi-port (3, 4, 5 way) valves, ball valves, 3-way plug valves, conveyor diverters, bulk material diverters and any other application requiring reliable pneumatic torque over a 180º rotation.

The units feature hard anodized aluminum housings, die cast aluminum pistons with Delrin® wear pads and nitrile seals. As in our famous TRIAC® 90º actuators, the 180º units feature NAMUR accessory dimensions and ISO 5211 mounting. 

  • 370 in-lbs. to 9300 in-lbs.
  • Hard-anodized aluminum housings
  • Die cast aluminum pistons
  • Delrin wear pads and nitrile seals
  • Namur accessory dimensions
  • ISO5211 mounting

Options and Accessories

  • 120° adjustable stops (for diverters)
  • 3-position control circuits
  • Complete the package with a solenoid valve, limit Switch, positioner, filter regulator, or mounting hardware kit