Festo has introduced its new control solution for infinitely variable flow rate and fill level based on the DFPI linear pneumatic actuator. This solution was introduced at the International Powder & Bulk Solids Conference and Exhibition. The company also showcased its range of process valve solutions for clean or harsh environments where powders and bulk solids are dispensed from hoppers and conveyed to downstream processes.
The Festo DFPI linear pneumatic actuator is equipped with an integrated displacement encoder controls flaps, guide plates, and louver dampers in flow-rate applications. This DFPI is also applied to variable fill-level systems. A demonstration at the Festo booth revealed the new control system’s failsafe functionality where, in the event of power or pressure failure, operations personnel manually advance the drive unit to a freely selectable safety position. This pneumatic solution offers simple maintenance and higher forces than an electrical actuator. Shipped fully assembled and tested these linear drives are equipped with positioners and valves. Festo also supplies ready-to-install customized control cabinets that reduce engineering and assembly overhead for OEMs and end users.
