Control valve specialists Samson Controls have developed a control valve positioner package which ensures precise positioning with fast response times, over the entire operating range, for example strokes of 60 mm and greater. The package consists of a positioner and a special hook up of several volume boosters with different air output capacities that perform this task.
Closing and opening times of less than two seconds can be over the entire positioning range.
The flow control applications for which the Samson package has been successful is for compress or bypass valves (anti-surge valves) as well as in petrochemical applications involving adsorption processes in moving bed adsorbers.
Adapted from a press release by Emma McAleavey.
Read the article online at: https://www.hydrocarbonengineering.com/product-news/15042014/control_valve_positioner_package_38/