Gear Pumps

Gear pumps use two meshed gear wheels rotating inside a housing to force liquid from the inlet to the outlet. As the gears come out of mesh, they create expanding volume on the inlet side which allows liquid to flow into the space. The liquid then gets trapped between the gear teeth and housing and transferred to the outlet as the gears rotate. Internal gear pumps offer more flow but external gear pumps can handle more pressure. Gear pumps are commonly made from metals like iron, steel, stainless steel, bronze or plastic polymers. Material selection depends on fluid properties, pressure, temperature, etc. Gear Pumps can handle high viscosity fluids, provide continuous and smooth flow, offer suction lift capability, and reversible flow direction in a compact design. Gear pumps are used for fluids like oils, diesel, grease, chemicals, and more.