Description
The CQ range provides an innovative fully-concentric and balanced actuator design for quarter-turn valves.
The design features a helical mechanism that transforms linear piston motion into quarter-turn valve stem rotation.
CQ actuators provide a much higher torque output for a given footprint than scotch yoke designs typically utilized to operate many quarter-turn valve types.
It is therefore ideally suited for installation in confined spaces.
Further, Rotork’s unique helical pin design provides higher efficiency than a helical gear mechanism utilized by other valve actuator manufacturers.
As standard, the CQ torque output profile, like that of a scotch yoke actuator, is engineered to parallel the torque demand profile typically found with popular quarter-turn valve types.
The CQ design however is unique in that the torque profile can be custom engineered and manufactured to meet specific, non-standard valve torque requirements.
Features- Compact Design
- Ease Of Maintenance
- Environmental Protection
- Balanced Design
Specifications
Specifications
Brand
Operating Pressure
- Up to 7 bar (175 psi)
Torque Output
- Up to 150,000 Nm (1,300,000 lbsf.in) Standard
Temperature Range
- Extreme Low: -76° to 320° F (-60° to 160° C)
- High: -4° to 320° F (-20° to 160° C)
- Low: -40° to 320° F (-40° to 160° C)
- Standard: -22° to 212° F (-30° to 100° C)
Environmental Protection
- IP66
- IP68
Approvals & Certifications
- ATEX
- EAU
- PED
Approvals & Certifications
- SIL 3
Features
- Manual Override
Flange Material
- End/Bottom Flange: Carbon Steel
Drive Shaft Material
- Carbon Steel
Material of Construction
- Cam Follower Bearing: Aluminum Bronze
- Piston, Helical/Vertical Slot Cylinder & Pneumatic Cylinder: Carbon Steel
- Spring: Spring Steel
- Upper/Lower Stop Bolt & Tie Rod: Alloy Steel
Shaft Size
- 10 to 120 mm