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