North Fringe has experience is many types of Positive Displacement Pumps. We can assist in the selection, packaging and specification of Air Operated Diaphragm Pumps, Electric Diaphragm Pumps, Metering Pumps, Dosing Pumps, Rotary Lobe Pumps, Peristaltic Pumps, Screw Pumps, Progressive Cavity Pumps, Duplex Pumps, Triplex Pumps, Quintuplex Pumps, Sliding Shoe Pumps and Gear Pumps..