AUMA worm gearboxes are used for the operation of part-turn valves and special valves (dampers, flue gas dampers, etc.).
- Type of duty: Short-time duty S2 – 15 min (Open-close duty) and inching/positioning
- Intermittent duty S4 – 25 % (Modulating duty only bronze)
- They can either be operated in:
– manual operation directly via handwheel
– motor operation (electric multi-turn actuator) - Swing angle 0° to 190° or multi-turn without endstop
