| Customization: | Available |
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| Standard: | ANSI, DIN, GB |
| Type: | Welding Flange |
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Flanges ARE DISC-SHAPED PARTS MOST COMMONLY USED IN PIPING, WHERE FLANGES ARE USED IN PAIRS and WITH MATCHING FLangES ON VALVES.In pipeline engineering, flanges are mainly used to connect pipelines.In the pipeline that needs to be connected, install a flange of various kinds, low pressure pipeline can use wire flange, use welding flange for pressure above 4 kg.Add a gasket between the two flanges and tighten with bolts.Flanges of different pressures have different thicknesses and use different bolts.
Pumps and valves, when connected with pipes, parts of these equipment are also made into corresponding flange shapes, also known as flange connections.All in the two planes in the periphery of the bolted connection and closed connection parts, generally known as "flange", such as the connection of ventilation duct, this kind of parts can be called "flange parts".But this connection is only a part of the equipment, such as the connection of the flange and the pump, it is not good to call the pump "flange parts".Relatively small, such as valves, can be called "flange parts."
Stainless steel flangeGasket is a ring made of a material that can produce plastic deformation and has a certain strength.Most gaskets are cut from non-metallic plates, or made by professional factories according to the specified size, the material is asbestos rubber board, asbestos board, polyethylene board, etc.;Also useful thin metal plate (iron sheet, stainless steel) asbestos and other non-metallic materials wrapped up made of metal gaskets;There is also a wound type gasket made of thin steel tape and asbestos tape wound together.Ordinary rubber gasket is suitable for temperature below 120ºC;Asbestos rubber gasket is suitable for water vapor temperature below 450ºC, oil temperature below 350ºC, pressure below 5MPa, for the general corrosive medium, the most commonly used is acid resistant asbestos board.In high pressure equipment and pipes, metal gaskets made of copper, aluminum, No. 10 steel, stainless steel, lens type or other shapes are used.The contact width between the high-pressure gasket and the sealing surface is very narrow (line contact), and the finishing degree of the sealing surface and the gasket is high.
Low pressure small diameter wire connected flanges, high pressure and low pressure large diameter are welded flanges, flange thickness and connecting bolt diameter and number of different pressures are different.
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Steel steel flanges
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Material
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Carbon steel
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ASTM A105. ASTM A350 LF1. LF2, CL1/CL2, A234, S235JRG2, P245GH
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P250GH, P280GHM 16MN, 20MN ,20#
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Stainless steel
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ASTM A182, F304/304L, F316/316L
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Alloy steel
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ASTM A182 A182 F12,F11,F22,F5,F9,F91etc.
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Standard
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ANSI
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Class 150 steel flanges-Class 2500 steel flanges
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DIN
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6Bar 10Bar 16Bar 25Bar 40Bar
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JIS
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5K steel flanges-20K steel flanges
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UNI
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6Bar 10Bar 16Bar 25Bar 40Bar
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EN
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6Bar 10Bar 16Bar 25Bar 40Bar
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TYPE
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1.Welding neck steel flange 2.Slip on
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3.Blind flange 4.Long welding neck flange
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5.Lap joint flange 6.Socket welding
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7.Threaded flange 8.Flat flange
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Surface
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Anti-rust oil, clear lacquer, Black lacquer, Yellow lacquer,hot-dipped Galvanized,electrical galvanized
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Connection
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Welding, Threaded
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Technical
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Forged, Casting
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Size
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DN10-DN3600
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Package
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1.>Standard export packaging (Plywood Case Of Outside,Plastic Cloth Of Inside). 2:As Customers' Requirements
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Heat Treatment
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Normalizing, Annealing, Quenching Tempering
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Certificate
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TUV,ISO9001:2008;PED97/23/EC,ISO14001:2004,OHSAS18001:2007
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Applications
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Water works, Shipbuilding industry, Petrochemical & Gas industry, Power industry, Valve industry,and general pipes connecting
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