Rotork CK Range - Advanced Modular Design Electric Valve Actuator

Brand: Rotork PLC

The CK actuator range has been designed to meet the needs of the diverse actuation application required by the valve industry and its customers.

The modular design concept enables quick product configuration from stock to customer specification with a very short lead time.

CK actuator are designed for minimum user interaction.

Their primary goal is to provide safe and reliable actuation in harsh environments.

The modular CK product range offers simple, robust actuators (CK/CKR) suited too harsh environments with the option for two different control packages (Atronik and Centronik) to meet exact site requirements.

Atronik offers modest control and feedback for a simple integrated starter solution.

Centronik offers advanced control and feedback for more complex site system integration and increased flexibility through remote mounting.
  • Modular design providing flexibility and configurability to suit your application
  • Safe motor-independent handwheel operation available at all times
  • Suitable for high temperature and strong vibration environments using separately mounted controls
  • Fast and efficient maintenance and commissioning due to plug and socket connections
  • Oil bath lubrication for extended life and mounting in any orientation
  • Local operation, configuration and commissioning with Centronik module, close coupled or remotely mounted up to 100 m from actuator
  • IP68 8 m for 96 hours - double-sealing as standard
  • Rapid and secure commissioning and configuration using local controls or setting tool
  • Increased protection by using independent torque and position sensing
  • Data extraction for analysis, diagnostics and asset management
  • Continuous mechanical valve position indication even without power
  • Hollow output drive to accept rising valve stems
  • Detachable thrust and non-thrust base options
  • Direct output torque range: 10 - 500 Nm (7 - 369 lbf.ft)
  • Max. torque with multi-turn gearbox: 10,800 Nm (8,000 lbf.ft)
  • Max. torque with quarter-turn gearbox: 205,600 Nm (151,600 lbf.ft)



Full Range of Rotary Motion

  • 360°

Supply Voltage

  • 110-600 Vac

AC Phase

  • Single, Three


  • 50 Hz, 60 Hz

Environmental Protection

  • IP66
  • IP67
  • IP68
  • NEMA 4
  • NEMA 6


  • Manual Override

Ambient Temperature Range

  • -22° to 158° F (-30° to 70° C)


  • FOUNDATION Fieldbus
  • HART
  • Modbus

Approvals & Certifications

  • CE
  • CSA
  • EMC
  • LVD
  • NAMUR 107


  • 100 % Relative Humidity

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