Flange connection or flange joint refers to the detachable connection in which flanges, gaskets and bolts are connected to each other as a group of combined sealing structures. Pipeline flange refers to the flange used for piping in the pipeline device, and the flange used for equipment refers to the inlet and outlet flange of the equipment. There are holes on the flange, and the bolts tightly connect the two flanges. The flanges are sealed with gaskets. Flange is divided into threaded connection (screw connection) flange, welding flange and clamp flange. Flanges are used in pairs. Low pressure pipes can use threaded flanges, and those with pressures of more than four kilograms can use welded flanges. Add a gasket between the two flange plates and fasten them with bolts. Flanges with different pressures have different thicknesses and use different bolts. When pumps and valves are connected with pipes, parts of these equipment are also made into corresponding flange shapes, also known as flange connection.
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