Flanges are also called flange flange plates or flanges. A flange is an interconnected part between the shaft and the shaft, used for connection between the end of the tube; it is also used in the flange of the import and export of the equipment, for connection between the two equipment, such as the reducer flange. Flange connection or flange joint is a detachable connection between three parts, including flange, gasket and bolt, as a group of combined sealing structures. Pipe flanges refer to flanges used for piping in piping installations, and are used on equipment to refer to import and export flanges of equipment. There are holes in the flange, and the bolts make the two flanges close. The flange is sealed with a cushion.
Flanges are used in pairs. Low pressure pipes can be welded with flanges, and welding flange is more than four kg of pressure. Seal gaskets between the two flanges and fasten them with bolts. Different pressure flange thickness is different, they use different bolts. When the pumps and valves are connected with the pipes, the parts of these equipment are also made into corresponding flange shapes, also known as flange connections.
All the connecting parts that are closed at the same time with the bolt connection at the periphery of the two plane are generally called "flanges", such as the connection of a ventilated pipe, which can be called "flanged parts". But this connection is only part of a device, such as flange and water pump connection, it is not easy to call the pump "flange parts." Smaller ones, such as valves, can be called "flange parts".
1, according to the chemical (HG) industry standard: IF, Th, plate flat welded flange (PL), neck butt welding flange (WN), neck flat welding flange (SO), socket welding flange (SW), welding ring loose flange (PJ/SE), flat welded ring flanges (PJ/RJ), lining flange cover (BL (S)), flange cover (BL)
2, according to the petrochemical industry (SH) industry standard: screw flange (PT), butt welding flange (WN), flat welding flange (SO), socket welding flange (SW), loose sleeve flange (LJ), flange cover.
3, according to the machinery (JB) industry standard: whole flange, butt welding flange, plate type flat welding flange, welding ring plate type loose sleeve flange, flat welded ring plate type loose sleeve flange, flanged ring plate type loose sleeve flange, flange cover.
4, according to the national (GB) standard, the whole flange, threaded flange, butt welding flange, neck flanged flange, neck socket flange, butt neck flanged flange, plate type flanged flange, welding ring plate flanges, flat welded ring plate flanges, flanged ring plate flanges, flanges cover.
Texture of material:
WCB (Tan Gang), LCB (low temperature Tan Gang), LC3 (3.5% nickel steel), WC5 (1.25% chromium 0.5% molybdenum steel), WC9 (2.25% chromium), C5 (5% chromium 0.5% molybdenum), C12 (9% chromium and 1% molybdenum), CA6NM (4 (12% chrome steel), CA15 (4) (12% chromium), CF8M (316 stainless steel), CF8C (stainless steel), CF8 (stainless stainless steel), CF8 (stainless steel) ), CF3M (316L stainless steel), CN7M (alloy steel), M35-1 (Meng Naier), N7M (Haast Ni alloy B), CW6M (Hasta nickel alloy C), CY40 (inco nickel alloy) and so on.
Flange connection is the two pipes, fittings or equipment, first each fixed on a flange, two flanges, plus flanged pads, bolts fastened together, completed the connection. Some pipe fittings and equipment have their own flange, and also belong to flange connection. Flange connection is an important connection way in pipeline construction. Flange connection is easy to use and can withstand great pressure. In industrial pipelines, the pipes are small and low in the family, and flanged connections are not visible. If in a boiler house or production site, there are flanged pipes and equipment everywhere.
Type of flange connection according to connection mode can be divided into plate flat welding flanges, neck flat welding flanges, neck butt welding flanges, socket welding flanges, threaded flanges, flanges, flanges, flat welded ring flanges, ring groove flanges and flanges, large diameter flat flanges, large diameter and high necked flanges, eight character blind. Plate, welding ring loose flange and so on.
Scope of application:
Because the flange has good comprehensive performance, it is widely used in chemical, construction, water supply, drainage, oil, heavy industry, freezing, health, water heating, fire, electricity, space, shipbuilding and other basic projects.
Industrial Flange,Industrial Pipe Flange,Industrial Pipe,Steel Pipe Flanges
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