Pressure vessels require high stainless steel flange

　　As a pressure vessel, it must have the following characteristics, such as high temperature resistance, corrosion resistance, leak prevention, easy repair, etc. However, usually the GOST 12820-80 Welding Stainless Steel Flange interface of pressure vessel is the only passage for handling materials and the interface for other facilities. The tightness of the joint seal of pressure vessel must be guaranteed for a long time by every pressure vessel, and the precision of the stainless steel flange end sealing groove and the quality of the material are guaranteed. Quantity has the most direct effect on sealing.

　　Firstly, on the premise of ensuring the accuracy and material properties of the sealing groove on the stainless steel flange end face, the sealing strip in the sealing groove must have enough extrusion force to achieve the sealing effect. When the stainless steel flange aperture is large and the medium in the container is high temperature, high pressure and strong corrosiveness, the sealing groove on the stainless steel flange end face of the container is very easy to generate cracks. In order to restrain the crack propagation, the pressure vessel is maintained regularly and the stainless steel flange is removed. The metal layer with cracks in the end sealing groove can be repaired to prevent leakage and explosion accidents effectively.

　　In addition, the repair process is also very important in the use , because some small stainless steel flanges can be improved by the correct repair methods, and there is no need for major maintenance and modification.