According to the performance characteristics uses of steel plate, it can be divided into stainless steel plate, sulfuric acid resistant stainless steel plate, pitting corrosion resistant stainless steel plate, stress corrosion resistant stainless steel plate, high strength stainless steel plate, etc. According to the functional characteristics of steel plate, it can be divided into low temperature stainless steel plate, non-magnetic stainless steel plate, free cutting stainless steel plate, superplastic stainless steel plate, etc. At present, the commonly used classification method is based on the characteristics of steel plate structure chemical composition, as well as the combination of the two. Generally divided into martensitic stainless steel plate, ferritic stainless steel plate, austenitic stainless steel plate, duplex stainless steel plate precipitation hardening stainless steel plate, divided into chromium stainless steel plate nickel stainless steel plate. Typical uses: pulp paper equipment, heat exchanger, mechanical equipment, dyeing equipment, film processing equipment, pipeline, building external materials in coastal areas, etc.

　　What is stainless steel check valve?

　　Stainless steel check valve refers to the valve that automatically opens closes the valve disc depending on the flow of the medium itself, which is used to prevent the medium backflow. It is also called check valve, one-way valve, counter flow valve back pressure valve. Check valve is a kind of automatic valve, its main function is to prevent medium backflow, prevent pump drive motor reverse, as well as container medium discharge. The check valve can also be used to supply the auxiliary system whose pressure may rise above the system pressure. Check valve can be divided into swing check valve lift check valve. The function of this type of valve is only to allow the medium to flow in one direction, to prevent the flow in one direction. Usually, this kind of valve works automatically. Under the action of fluid pressure flowing in one direction, the valve disc opens; when the fluid flows in the opposite direction, the fluid pressure the dead weight of the valve disc act on the valve seat, thus cutting off the flow.