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pneumatic valve actuator / quarter-turn / double-acting / spring-return
K-TORK Rotork plc



  • Type:


  • Movement:


  • Technology:

    double-acting, spring-return, rotary vane

  • Other characteristics:

    compact, modulating, ATEX

  • Torque:

    Max.: 18,300 Nm (13,497

    Min.: 0 Nm (0


K-TORK Actuators and Controls represents the future of valve automation. The vane actuator is a ‘True Rotary’ actuator that does not require the conversion of a linear motion to a rotary motion. The result is a simple, highly accurate and reliable quarter-turn pneumatic actuator that is specified for the most demanding process flow control applications.

Available in double-acting or spring-return configurations
Torque outputs up to 18,300 Nm (155,000
Simple, one moving part
Capable of millions of operations at fast cycle times
Easy to convert from double-acting to spring-return
Precise modulating for quarter-turn control valves with accuracy of 0.25% or better
Low friction, dual opposed lip seals provide extremely long life
Totally enclosed, non ventilated spring housing
Conforms to VDI/VDE 3845 control accessory mounting standards
Fast operation with large ports and no air restrictions
Complies with ANSI /AWWA C540-02 and C541-08
Standard 80 to 100° rotation, adjustable
Certified to IP66M / IP67M and meets NEMA 4 /4X
CE marked and certified in accordance with ATEX 2014/34/EU
Standard temperature rating -20°C to +70°C (-0°F to +160°F)
Working pressure 7 bar (100 psi) or 10 bar (150 psi) rating
Standard ISO 5211 drive on all spring return models

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