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Manual Operators

Reliable handwheel driven gear operators for standalone operation or declutchable manual override.

When powered automation is unavailable, unnecessary, or requires backup, manual gear operators provide dependable, precise control for quarter-turn valves. Designed for smooth operation and high mechanical advantage, these units make it easy to operate larger valves with minimal effort. Standard gear operators offer simple, robust performance for everyday applications, while declutchable gear operators allow seamless transition between automated and manual control without removing the actuatorโ€”ensuring safety, flexibility, and continuous operation in critical service environments.

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GO/GS Series

Direct ISO 5211 valve mounting for easy and compact handwheel operation. The GO Series comes standard with a female double square output drive, which directly couples to square valve stems, or quickly adapt to smaller square drives, or double-D and keyed drives with the use of adapter bushings.

Available Options

  • Chain Wheel Operators
  • Stem Extensions
  • Square Operating Nuts
  • Custom Sized Handwheels
  • Standard Lockout Devices
  • Limit Switch Adaptation

GOW Series Declutchable

Max-Air offers a declutchable override gear with triple epoxy coated IP67 housing mounts between ISO 5211 valve and actuator interfaces. It features an easy declutch mechanism, integrated block and bleed capability and lockout/tagout holes. GOW Series comes standard with a female double square output drive, which directly couples to square valve stems, or quickly adapt to smaller square drives, or double-D and keyed drives with the use of adapter bushings.

Available Options

  • Stem Extensions
  • Square Operating Nuts
  • Custom Sized Handwheels
  • Standard Lockout Devices
  • Limit Switch Adaptation