Single gear pump is a mechanical pump whose basic structure is composed of two gears, one of which drives the other gear. The two gears are usually concentrically mounted, and the meshing space between them forms a closed chamber.
Double gear pump is a liquid conveying device that consists of the meshing of two gears. The two gears are usually concentrically mounted, forming an enclosed space by meshing gears with each other.
Triple gear pump has triple displacement, which is good in the performance of transferring hydraulic oil, and is suitable for mechanical equipment manufacturers with high transmission requirements.