Difference Between Rotary Lobe Pump and Gear Pump | Bonvepumps.com
Gear pump is a positive displacement pump , which has a pair of meshing gears. One driving gear is driven to rotate by the motor, and the other driven gear is meshed with the driving gear to rotate. When the two gears are gradually separated, a partial vacuum will be formed. The liquid is inhaled through the suction pipe under the action of atmospheric pressure, and the inhaled liquid is squeezed and pushed out by the gear along the inner wall of the pump, which features small handling and high lift. Gear pumps use conveying media as the lubricating medium in rotation, and are generally used in oily media, otherwise they will cause great wear and reduce the service life to a large extent. Rotar y lobe pump consists of two lobe rotors, which rotate synchronously driven by a pair of synchronous gears in the gearbox. The rotors are driven by the main shaft and sub-shaft to rotate in a synchronous reverse direction, which changes the pump capacity, builds up high vacuum a...