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Ambient conditions
AUMA actuators are typically supplied in increased enclosure protection IP68 in compliance with EN 60529. IP68 means protection against continuous immersion up to 8 m head of water for max. 96 hours. During continuous immersion, up to 10 operations are permissible.
Typically, AUMA gearboxes are used in combination with AUMA multi-turn actuators. Gearboxes are also available in enclosure protection IP68. Certain gearboxes are intended for particular applications, e.g. buried service for part-turn actuators or superior immersion levels. Please contact AUMA for device selection with special requirements.
AUMA actuators SA and SAEx are also available in versions for continuous underwater use. Actuators SA-UW are, as standard, qualified for up to 15 m head of water, explosion-proof actuators SAEx-UW for up to 8 m head of water. The actuators can be combined with AUMA gearboxes. Higher heads of water are available on request.
A universal sealing system combined with comprehensive corrosion protection qualifies these actuators for underwater use. All actuator settings are non-intrusive via the actuator controls, with no need to open the actuator housing. The actuator controls are installed outside the flooded area, separate from the valve and actuator.