Auma Riester GmbH & Co. KG products

SA multi-turn actuators are rated for open-close duty and positioning duty (classes A and B) / (short-time duty S2 - 15 min). Special sizing for longer running times is available for the S2 - 30 min duty.

With SAV .2 multi-turn actuators for open-close duty paired with ACV 01.2 actuator controls, the proven AUMA SA/SAR range is enhanced by variable speed models. AUMA is spearheading market technology by offering a wide speed control ratio of 1:10.

With SARV .2 multi-turn actuators for modulating duty paired with ACV 01.2 actuator controls, the proven SA/SAR range is enhanced by variable speed models. AUMA is spearheading market technology by offering a wide speed control ratio of 1:10.  SARV multi-turn actuators are rated for modulating duty (class C) S4 - 25 %. Special versions for S4 - 50 % are also available.

The use of a frequency converter specially conceived for the actuator deployment offers many advantages. Besides the variable speed, the insensitivity to voltage and frequency variations, the lack of current increase during motor start-up as well as the valve protection by soft approaching of the end positions should be mentioned.

If the drive shaft is to be positioned at a certain angle to the output drive shaft, combinations of the multi-turn actuators SA with AUMA spur gearboxes GST are used. The output torque can be increased many times.

High pressure impacts in pipelines demand multi-turn actuators supplying high torques. When combining multi-turn actuators with GHT multi-turn gearboxes, the torque range can be extended to 120,000 Nm. Torque range: to 120000 Nm.

AC actuator controls are your perfect solution if the application requires self-adapting control functions, data logging, a configurable interface or if valve and actuator are to be integrated into a Plant Asset Management System due to advanced diagnostic functions.

Explosion-proof devices must be used in plants where potentially explosive atmospheres are likely to occur. These devices are designed so that they will not act as an ignition source. They neither generate ignition sparks, nor hot surface temperatures. Certification is performed in close collaboration with national and international certification bodies. For multi-turn actuators SAEx/SAREx 07.2 – SAEx/SAREx 16.2 and part-turn actuators SQEx/SQREx 05.2 – SQEx/SQREx 14.2, AUMATIC ACExC 01.2 actuator controls with integral local controls are available. Explosion-proof microprocessor-based actuator controls with comprehensive functions