Spot supply: welded flange, BW, the welded flange Processing Hongyuan pipe industry production: welded flange, socket flange, with a diameter flange. (Contact: Ma Yuanyuan phone: 18,732,703,585 QQ: 619 688 609) company mainly engaged in a variety of materials pipe: 304,304 L, 316,316 L, 321,310 S ,18-8, 16Mn, 20 #, 20G, 12Cr1MoVG, P91, 10CrMo910, 15CrMo F51 in the pipeline project, according to the different production methods should be divided into: Big Bend simmer Big Bend, stamping bending and welding. The elbow is expressed as the thickness of the outer diameter X. 108X6. Bending radius from 1.5D up. 1.5D elbow, upward bend the. The simmering Big Bend is divided into cold simmer and heat simmer two with telescopic good elasticity, resistance to high voltage, resistance, and the advantages of small, they have been widely used. 2. Production methods can be divided into a push system, pressing, forging, casting, and so on. 3 manufacturing standards division can be divided into the GB electricity standard, the ship standard of standard water standard, American standard, German standard, Japanese standard, the Russian standard, such as. The welded flange sealing surface forms: raised face (RF), the concave (FM), convex (M), the tenon surface (T), the groove surface (G), the whole plane (FF). With neck flat welding flange diameter range: DN10 ~ DN600 Scope: PN Series PN2.5 ~~ PN40; Class Series Class150 ~ Class1500 flange material: carbon steel, Luo molybdenum steel 304,316,304 L, 316L, 321,347, CF8C. Manufacturing process: forging. Advantages: with neck flat welding flanges are welded flange, because there is a short-necked, thereby increasing the strength of the flange improved flange bearing efforts. It can be used in higher pressure pipelines. Disadvantages: higher cost, compared with the plate welded flange in transit due to the characteristics of its shape more easily bump