May 2018, Vo. 245, No. 5

What's New

AUMA

Electric actuator manufacturer AUMA launched explosion-proof, variable-speed valve actuators for use in potentially hazardous environment. The new SAVEx actuators for open-close duty and SARVEx multi-turn actuators for modulating duty, combined with intelligent ACVEx actuator controls, provide full control of the motor speed at all times. In oil and gas applications, variable speed offers significant advantages for challenging valve control tasks,since it allows the optimum operating speed to be selected for each change of valve position. Actuator speed can also be controlled by an external signal – either 4-20 mA analog or 0-100 % digital – to take

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