) has three  pneumatically actuated diaphragm valves arranged in a series. The pump operates  in a defined sequence, and it is  self-priming and transports liquids without backflow. Because of the absence of  check valves, the flow can be reversed for fast draining of the  pipings and for the CIP-process. The Kobio pump is controlled by an intelligent  front module and offers  a variety of functions such as pump rate and consumption displays, profile and cascade  functions, calibration and alarms. The control system is completed with the  option for external control and integration into automated processes via analog or digital  interface, or profibus. 

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The Kobio pump from Bioengineering (www.bioengineering.ch) has three pneumatically actuated diaphragm valves arranged in a series.