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Manual & Fire Fail-Safe Spring Units

Manual & Fire Fail-Safe Spring Units


  • Manual unit, cannot be left in the wrong position.
  • Reliable torque delivery for valve reseat.
  • Fire fail-safe option. For fail-safe spring operation of valves in the event of a fire.
  • ISO5211 female drive & ATEX Category 2 approved options available for models 02, 03, 05 and 07.
  • Clockwise or counter clockwise 90° spring action.
  • Spring housing sealed to IP65 to protect from internal corrosion.
  • Bi-square (star) and serrated female drive options available.


Manual & Fire Fail-Safe Spring Return
If you want to operate a valve manually, but maintain the advantage of the fail-safe spring’s certainty of position when unattended, use this device.

Manual fail-safe spring units are available in Kinetrol sizes 02, 03, 05 and 07 with factory adjusted torques from 1.4Nm to 45.5Nm.

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