Samson Controls has introduced a new positioner package which facilitates exact positioning with fast response times over the entire operating range, including large control valves, which can be problematic. The new Samson positioner package, which consists of a positioner and a special hook-up of several volume boosters with different air output capacities, can accomplish the task of supplying the air output capacity required to achieve fast positioning in larger actuators (with diaphragm areas of 1400cm2 up to 2800cm2). In these situations the positioner controls a volume booster which achieves a much higher air output capacity than the positioner. Closing and opening times of less than two seconds can be achieved over the entire positioning range. This package has already been used successfully for compressor bypass valves (anti-surge valves) as well as in petrochemical applications involving adsorption processes in moving-bed adsorbers.