Rotork K-Tork vane pneumatic actuator for control and shut-off valves, up to 18,300 Nm

Rotork K-Tork is a vane pneumatic actuator for quarter-turn valves with true rotary motion: there is no conversion of linear motion into rotation and only one moving part. This provides accuracy, simple maintenance and a service life of millions of cycles with short stroke times.

Torque up to 18,300 Nm (155,000 lbf·in). Double-acting and spring-return versions, conversion between them without changing the concept. Coatings including epoxy and handwheels including declutch gearbox are available. The actuator is used in critical flow control loops where a conventional rack-and-pinion actuator wears out from frequent cycling.

Key features:

• True rotary, one moving part
• Torque up to 18,300 Nm
• Double-acting and spring-return
• Service life of millions of cycles
• High positioning accuracy

Specifications:

• Type: pneumatic vane part-turn
• Torque: up to 18,300 Nm (155,000 lbf·in)
• Power: compressed air
• Duty: on/off and modulating, high cycling
• Versions: double-acting and spring-return
• Options: positioner, limit switches, handwheel, coatings

Application: Quarter-turn control and shut-off valves with frequent cycling in process and oil and gas systems.

Scope of supply: K-Tork actuator; handwheel, positioner and coating per configuration code.

Before ordering: Before ordering, specify torque, ambient temperature, coating and handwheel type.