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Multi-turn gearboxes

GSTI

AUMA GSTI multi-turn gearboxes can be used for operating gate valves and globe valves in nuclear power plants (Inside & Outside Containment).

  • For open-close duty
  • Type of duty: Short-time duty S2 - 15 min (open-close duty)
  • Selection of operation modes: - Motor operation (electric multi-turn actuator) - Manual operation directly with handwheel
Torque range

2000 Nm to 16000 Nm

Design features

  • Suitable for electrical operation and manual operation

Service conditions

  • Ambient temperature –20 °C to+80 °C
  • Earthquake resistance
  • LOCA/DBE resistance: For a short time max, 185 °C

Interfaces

  • Valve attachments according to DIN and ISO standards

Options

  • Combinations with SAI/SARI or SAN/SARN actuators
  • Manual operation (without actuator) possible

Advantages

  • DBE resistant gearbox
  • Simple installation
  • Easy maintenance
  • Solution for special installation conditions

Specifications

Key information at a glance

Design features

Service conditions

Approvals