LARGE VALVE POSITIONER
23 October 2012
Where process control applications need larger valves it can sometimes be difficult to achieve the required levels of accuracy combined with fast positioning.
For this type of situation, Samson Controls has developed a control valve positioner package which ensures precise positioning with fast response times, over the entire operating range. The package consists of a positioner and a special hook up of several volume boosters with different air output capacities which performs this task. Closing and opening times of less than two seconds can be achieved over the entire positioning range.
Applications where the Samson package has been successful include compress or bypass valves (antisurge valves), as well as petro - chemical applications involving adsorption processes in moving-bed adsorbers.