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Part-turn gearboxes, Part-turn gearboxes with base and lever

GS part-turn gearboxes

AUMA part-turn gearboxes are used for operating part-turn and special valves (damper, flue gas damper, ball valves).

  • Type of duty: Short-time duty S2 - 15 min (open-close duty) and positioning duty
  • Intermittent duty S4 - 25 % (modulating duty, bronze only)
  • Selection of operation modes: - Manual operation directly with the handwheel - Motor operation (electric multi-turn actuator)
  • Swing angle 0° to 190° or multi-turn
Torque range

250 Nm to 675000 Nm

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Design features

  • Swing angle up to 190 °
  • With or without primary reduction gearing
  • 360° worm wheel
  • End stops with travelling nut principle according to AWWA C504
  • Valve attachments according to EN ISO 5211
  • All parts within the power drive hardened by thermal treatment

Service conditions

  • Wide temperature range
  • Highest enclosure protection
  • High quality corrosion protection

Options

  • Swing angle > 100° or multi-turn version (without end stops)
  • Worm wheel made of bronze for modulating applications
  • Clockwise and counterclockwise closing versions
  • Base and lever, chain drive
  • Housing made of spheroidal cast iron
  • Version for applications in drinking water
  • Nuclear version
  • Fireproof K-MASS® coating
  • Extension flange
  • Im1 to IM3 version according to ISO 12944-2
  • Housing made of spheroidal cast iron
  • Functional safety:
    Up to SIL 2 possible for selected configurations

Specifications

Key information at a glance

Design features

Service conditions

Approvals

View all specifications

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