External Gear Pumps are a type of positive displacement pump that uses gears to transfer fluids. They are usually made of materials such as cast iron, stainless steel, or other alloys, depending on the application and the type of fluid being pumped. These pumps are widely used in various industrial applications for pumping liquids with a wide range of viscosities. They are commonly used in hydraulic systems, lubrication systems, transfer and metering of fluids, and various industrial processes where a steady flow of liquid is required. External Gear Pumps are suitable for fluids with a wide range of viscosities, from thin oils to thicker liquids.