What’s the flange
Flange is the pipe and pipe connected parts, used for the connection between the pipe end; Flange is also used in the import and export of equipment, used for the connection between two equipment, such as reducer flange,flange connection or flange joint, refers to the flange, gasket and bolt three connected to each other as a group of detachable sealing structure. Pipeline flanges refer to the flanges for piping in pipeline devices and the import and export flanges of equipment when used in equipment. There are holes in the flange and bolts hold the two flanges together. Gasket seals between flanges. Flange threaded connection (threaded connection) flanges, welding flanges and clip flanges. Flanges are used in pairs, threaded flanges can be used for low pressure pipes, welded flanges are used for pressures above 4 kg. Put a gasket between the two flannels and bolt them down. Flanges at different pressures have different thicknesses, and they use different bolts. Pumps and valves, when connected to pipes, are also made into the corresponding flange shape, also known as flange connection. All in the two planes 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". But this connection is only a part of the equipment, such as flange and water pump connection, it is not good to call the pump "flange parts". Smaller ones, such as valves, can be called "flange parts".
Welded flange quality
As welded iron flanges, many customers question whether the quality of welded iron flanges is better than forged welded flanges. Actually iron plate welding quality and the quality of the welding flange forging flange is the same, but the iron plate welding flange exactly what place can not be guaranteed, is also the most insecure iron plate welding flange material, because the process of general, the density of iron plate welding flange is no problem, but in the process of producing, The blank of the iron plate welding flange is rarely tested, so after the production, the material of the iron plate welding flange can not be guaranteed without testing.
Because the flange has good comprehensive performance, it is widely used in chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, water heating, fire, electric power, aerospace, shipbuilding and other basic engineering.
Flange add borosilicate glass and gasket and bolts is named flange sight glass.