Northern® gear pumps are positive displacement rotary gear pumps that are designed for nearly any liquid transfer application, particularly those involving extremes of temperature, viscosity, pressure and inlet conditions. Exceptions for the carbon steel series include liquids containing high concentrations of abrasives, liquids which have poor lubricity such as water, and liquids that are corrosive.
Northern® heavy duty gear pumps are factory engineered for your toughest applications. They are precisely manufactured with materials for long life and high reliability. The 4000 series pump is made from carbon steel and is traditionally designed with a five plate modular construction, best for the majority of applications.