Sustainability has long been a central aspect of industrial process control. Efficient resource utilization not only determines a company's environmental footprint but also its economic competitiveness. One of the most crucial factors in this regard is compressed air consumption – compressed air remains one of the most expensive energy sources in industry. The electro-pneumatic positioner EP3 by EBRO ARMATUREN sets new standards in this area. It enables precise valve control while minimizing compressed air consumption.