K-TORK, a simple, highly accurate and reliable quarter-turn pneumatic actuator that is specified for the most demanding process flow control applications.

  • Torque outputs upto 18,300 Nm
  • Simple, one moving part
  • Compact industry-leading torque-to-size ratio
  • Easy to convert from double-acting to spring-return
  • Precise modulating for ¼-turn control valves
  • Low-friction, dual-opposed lip seals provide extremely long life
  • Totally-enclosed, non-ventilated spring housing
  • Low-stress spring for long life
  • Integral NAMUR VDI/VDE 3845
  • No pressure-retaining o-rings
  • Fast operation with large ports and no air restrictions
  • Fully AWWA #C-541 compliant
  • Standard 80 to 100° rotation, adjustable
  • High temperature (HT) -20° to +149°C
  • Low temperature (LT) -40° to +70°C
  • Standard working pressure 10 bar (150 PSI) rating, most models
  • Standard ISO 5211 drive on all S/R models

Rotork K-Tork


Extra info