External Gear Pumps are the most cost effective solution for pumping clear viscous liquids. They are one of the smallest and the simplest of the positive displacement pumps and yet can deliver high pressures and flows with ease. Although economical a gear pump can last for years without needing maintenance in the right application. Usually used for pumping lubricating liquids, special designs allow for pumping non lubricating, abrasive or erosive liquids as well, providing the best life cycle cost and easy and low cost maintenance than other alternatives. Gear pumps have one of the lowest foot print for a given flow than any other positive displacement pump.
