A brief introduction to the characteristics and performance of stainless steel gear pumps that are acid-resistant, alkali-resistant, and high-temperature resistant

Stainless steel gear pump is an internal gear pump, a gear pump with acid, alkali resistance, wear resistance and high temperature resistance. In this practical design, one active and passive shaft is placed on the front and rear end covers of the pump body, and the active and passive gears are installed on the active and passive axes to form a pair of gear pairs. The material inlet and outlet are provided on the casing. The characteristic is that ceramic side plates are provided on both sides of the pressure chamber. This practical method of designing a new type of stainless steel gear pump solves the four major problems of acid resistance, alkali resistance, wear resistance and high temperature resistance that plague stainless steel gear pumps.

The new stainless steel gear pump has well-designed oil drain and oil return grooves. The gears bear less torque during operation, so the bearing load is small, the wear is small, and the pump efficiency is high.

The stainless steel gear pump is equipped with a safety valve as overload protection. The full return pressure of the safety valve is 1.5 times the rated discharge pressure of the pump. It can also be adjusted according to actual needs within the allowable discharge pressure range. However, please note that this safety valve cannot be used as a pressure reducing valve for a long time and can be installed separately on the pipeline if necessary. KCB stainless steel gear pump is mainly used to transport lubricating oil in the lubrication system of various mechanical equipment. It is suitable for transporting lubricating oil with a viscosity of 5×10-6~1.5×10-3㎡/s (5-1500cSt) and a temperature below 300°C. Stainless steel gear pump can transport non-lubricating oil, beverages, and low-corrosive liquids. Equipped with copper gears, it can transport low internal point liquids, such as gasoline, benzene, etc. In addition to ordinary motors, this series of stainless steel gear pumps can also be equipped with explosion-proof motors of the same specifications according to user needs.

Influence of flange form. Different flange forms require different gaskets. Smooth surface flanges are generally only used for low pressure, with soft thin gaskets; under high pressure, if the strength of the flange is sufficient, smooth surface flanges can also be used, but thick soft gaskets should be used, or wrapped gaskets with inner reinforcement rings or reinforcing rings should be used. In this case, metal gaskets are not suitable because the required pressing force is too large, resulting in greater deformation of the bolts and making the flange difficult to seal. If a metal gasket is to be used, the smooth surface should be reduced to reduce the contact area with the gasket. In this way, under the same bolt tension, the compressive stress of the reduced narrow smooth surface will increase.