


Gear Pumps: Design, Operation & Reliability | Pumps & Systems
Gear pumps are often used in pumping relatively viscous liquids, such as some viscous liquid hydrocarbons, liquid fuels, lubrication oil pumping in machinery packages, hydraulic units and fluid power transfer units. Gear pumps are the most popular type of positive displacement pump. Small gear pumps usually operate at a speed between 1,700 rpm and …