Stainless steel gear pump structure features KCB stainless steel gear pump mainly consists of gear, shaft, pump body, safety valve and shaft end seal. The gears are heat treated to have a high hardness and strength and are mounted with the shaft in a replaceable bushing. Lubrication of all parts in the pump is automatically achieved using the output medium while the pump is operating. The power transmission gear and the fluid delivery gear are in different pump chambers. They are designed and manufactured according to their different functions, so the pump has higher reliability. As a kind of positive displacement pump, gear oil pump is divided into internal gear pump and external gear pump, which is suitable for conveying viscous liquid. Gear pump has high efficiency and stable flow flow without pressure. Internal gear pump has simple structure and easy maintenance. It can be metered and has the advantage of strong self-suction. It is more used in process delivery pumps. The external gear pump can deliver higher pressure than the internal gear pump. According to the use pressure, it can be divided into low pressure and high pressure. The price of low pressure external gear pump is relatively high. Cheap, but not suitable for higher viscosity, usually used for oil delivery, high pressure external gear pump suitable for high pressure, high viscosity and high temperature applications, customized separately. The stainless steel pump mainly consists of a gear, a pump body, a shaft, a safety valve and a shaft end seal. The gears are heat treated to have a high hardness and strength and are mounted with the shaft in a replaceable bushing. A drive shaft and a passive shaft are mounted on the casing, a gear is mounted on a section of the drive shaft located in the casing, and a gear meshing with the gear is mounted on the driven shaft to form a pair of gear pairs, and an inlet and an outlet of the material are disposed on the casing. The utility model is characterized in that a ceramic plate is arranged on the inner wall of the cavity in which the gear unit is housed. The device improves the acid and wear resistance of the stainless steel pump by changing the configuration of the gear pump.