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AMO-Series Quarter-turn Manual Override
Bettis AMO-Series Quarter-turn Manual Override
The AMO declutchable Quarter-Turn Manual Override Worm Gearboxes provide a critical fail-safe for pneumatic(Rack and Pinion Actuator), hydraulic, and back-drivable electric actuators.
These "sandwich-mounted" units ensure uninterrupted manual control in the event of a loss in plant air supply, power gas, or electricity. Engineered for peak performance, the gearboxes feature high-efficiency internals that significantly reduce the handwheel effort required for operation.
AMO-Series Quarter-turn Manual Override

Specs

Actuation
Manual
Certifications
Enclosure sealed to IP-54
Control Type
Manual
Operating Temperature
High up to +200 °C (+392 °F). Low up to -52 °C -62 °F).
Power Source
Manual
Product Type
Manual Gear Operator
Valve Type
Ball, Butterfly, Plug, Dampers, Globe

Features

  • 4 models available up to 3,500 Nm torque
  • Enclosure sealed to IP54
  • For use with all types pneumatic rack and pinion Actuator
  • Integral top flange (available ISO drive coupling)
  • Powder coated gearbox and handwheel
  • Superior die cast aluminum body for reduced weight
  • Smooth and easy clutch – declutch mechanism
  • Extreme temperature variants available from -52°C to +150°C (-62°F to +302°F).