First of all, we must understand the working principle of stainless steel gear pumps and gear oil pumps. Two gears of the same size mesh with each other in a tightly matched housing. The inside of the housing is similar to a figure eight. The two gears are installed inside. The housing fits tightly. The material from the extruder enters between the two gears at the suction port and fills the space. With the rotation of the teeth, the liquid moves along the housing, and then the liquid is discharged when the two teeth mesh, also because of the stainless steel. The working principle of gear pumps and gear oil pumps is that stainless steel gear pumps and gear oil pumps are oil pumps that pump lubricant medium. If the medium is replaced with water, water has no lubricating effect. In this way, the two pairs of gears of the stainless steel gear pump and gear oil pump will rub against each other until the wear is completed, so the SS gear pump and SS gear oil pump are best to pump lubricating oil medium.