Stainless steel flange is a disc-shaped component, most commonly used in pipeline engineering, and flanges are used in pairs. In pipeline engineering, flanges are mainly used for connecting pipelines. In the pipelines that need to be connected, stainless steel flat welding flanges can be installed with a flange plate. For low-pressure pipelines, threaded flanges can be used, and for pressures above 4 kilograms, welded flanges can be used. Add sealing points between the two flanges and tighten them with bolts. Flanges with different pressures have different thicknesses and use different bolts.