Link mode of flange

flange is a part of the connection between the shaft and the shaft, which is used for the connection between the pipe ends; it is also used for the flange on the import and export of the equipment, which is used for the connection between the two equipment, such as the reducer flange. Flange connection or flange joint refers to the detachable connection which is connected by flange, gasket and bolt as a group of combined sealing structure. Pipe flange refers to the flange used for pipe distribution in piping devices, and refers to the inlet and outlet flanges of equipment when used on equipment. There are holes on the flange, and the bolts make the two flanges tightly connected. The flanges are sealed with gaskets. Flanges are divided into threaded connection (threaded connection) flanges, welding flanges and clamping flanges.

flanges are used in pairs, low-pressure pipelines can use wire flanges, and welding flanges are used for pressures above four kilograms. Add a gasket between the two flanges and fasten them with bolts. Different pressure flange thickness is different, they use different bolts. Pumps and valves, when connected to the pipeline, the parts of these equipment and equipment are also made into corresponding flange shapes, also known as flange connections. All in the two plane around the use of bolt connection at the same time closed connection parts, generally known as "flange", such as ventilation pipe connection, this kind of parts can be called "flange parts". However, this connection is only a part of the equipment, such as the connection between the flange and the water pump, so it is not good to call the water pump "flange parts". More small, such as valves, can be called "flange parts". Flange connection is the two pipes, pipe fittings or equipment, first respectively fixed on a flange, between the two flanges, plus flange pads, bolted together to complete the connection. Some pipe fittings and equipment have their own flanges, which are also flange connections. Flange connection is an important connection mode in pipeline construction. The flange connection is easy to use and can withstand greater pressure. In industrial pipelines, in the home, the pipe diameter is small, and it is low pressure, and the flange connection is not visible. If in a boiler room or production site, there are flanged pipes and equipment everywhere.

According to the connection mode, flange connection types can be divided into: plate flat welding flange, neck flat welding flange, neck butt welding flange, socket welding flange, threaded flange, flange cover, neck butt welding ring loose sleeve flange, flat welding ring loose sleeve flange, ring groove surface flange and flange cover, large diameter flat flange, large diameter high neck flange, eight-shaped blind plate, butt welding ring loose sleeve flange, etc.