What are part-turn gearboxes and what are they used for?

Part-turn gearboxes are used to transmit torque from a multi-turn actuator to a 90-degree maneuver on, for example, a throttle or ball valve. Part-turn gearboxes can be delivered with a high gear ratio and therefore enable motorization of valves with a torque requirement up to 675,000Nm.

For further information see https://www.auma.com/en/products/part-turn-gearboxes.