Declutch & Manual Overrides | SLB

Declutch & Manual Overrides

Save rig space and increase uptime

DYNATORQUE accessories during manufacturing.

Purpose engineered. Quality manufactured. Performance tested.

Our portfolio of MAXTORQUE products includes manual overrides, which are sandwich-mounted as part of an automated valve package. Declutch and manual overrides provide manual operation of automated valves in in the event of a loss of plant air supply, power gas, hydraulic fluid power, or electricity.

These overrides are used with pneumatic, hydraulic, and backdrivable electric actuators. As with all Cameron worm gears, the declutch offers the same features and benefits of our highly efficient, double-enveloping, self-locking design.

MAXTORQUE Declutch and Manual Overrides


  • Highly efficient, double-enveloping bronze alloy worm gearset
  • Torque tube design with robust lever engagement
  • From 50,000 to 5,500,000 [5,649 to 564,924 N.m]
  • Direct mount to valve interface
  • One-piece drive adapter


  • Reduces turns to operate by up to 75%
  • Reduces rim pull by up to 75%
  • Reduces required handwheel size