Flat welding flange, PL 20 # plate welded flange the Hongyuan pipe industry production: welded flange plate welded flange with a diameter flange (Contact: Wang Shan 15,922,054,164 QQ: 1494092364) pipeline project according to the production method is different, 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 diameter range: DN10 ~ DN600 Scope: PN series PN2.5 ~~ PN40; the Class Series Class150 ~ Class1500 flange Material: carbon steel, Luo molybdenum steel 304,316,304 L, 316L, 321, 347, CF8C. Manufacturing process: forging. The Company is mainly engaged in the pipes of various materials: 304,304 L, 316,316 L, 321,310 S ,18-8, 16Mn, 20 #, 20G, 12Cr1MoVG, P91, 10CrMo910, 15CrMo, etc.. The company has advanced production line, the production of high, medium and low voltage elbow, pipe, tee, elbow, flange and pipe factory chemical engineering design and preparation of professional manufacturers. At the same time, the company also produces wear-resistant, anti-corrosion, insulation pipes, soda, pipe supports and hangers, as well as power plant accessories and other products. Is widely used in petroleum, chemical, electric power, construction, metallurgy, water conservancy and other large-scale projects.