airPUMP Air Operated Diaphragm Pumps

Air operated double diaphragm pumps are positive displacement pumps that use a combination of the reciprocating action of two flexible diaphragms, two inlet and two outlet ball check valves to pump a fluid. 

There are two pump chambers which are divided by the diaphragms into air and fluid regions. The two diaphragms are connected to a common shaft located in the center section. 

This creates the effect that during a cycle one side is pumping fluid while the other side is filling.