For operation from one end position to the other, the closing element must first be lifted, then rotated by 90°, and finally lowered into the valve seat. With AUMA’s new approach for lift plug valves, the distributed control system is required to send just two commands “Running OPEN” or “Running CLOSE”. The entire procedure is coordinated by the integral controls of two actuators: one designated to be responsible for lifting/lowering while the other controls part-turn movement. The established supplier of electric actuators recognises that, even for exceptional applications, standardised devices are appreciated by plant operators. AUMA’s product portfolio is based on a modular design concept for both device construction and software, this enables easy mechanical adaption of actuators and straightforward extension of software functionality. Further examples of AUMA actuation solutions include multiport valve control and the operation of coker valves in delayed coking systems. A multiport valve application will be showcased at the Expo.
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