Profile: North Ridge Pumps Limited is a manufacturer and distributor of pumps. Our pump types range from standard centrifugal pumps, and multistage pumps, to immersed and process overhung solid handling pumps. We also supply a wide range of positive displacement pumps such as peristaltic, progressing cavity, screw and gear pumps. Our hand pumps are pumps which are operated manually by hand as opposed via electricity or air. Hand pumps can be of centrifugal or positive displacement technology where they can be piston or double diaphragm.