/community-hubs/deltav-community-connect/b/delta-vweblog/posts/flow-control-positive-displacement-pump-part-1Positive displacement pumps may be used when it is necessary address flow requirements of 2GPM or less. The pump design ( e.g. vane, gear, peristaltic) selected for a particular application should be based on properties of the liquid and the expecteden-USTelligent Community 13