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Butt flanges Related content Overview Butt flange application: Butt flanges for pressure or temperature fluctuations in the pipeline or high temperature, high pressure and low temperature pipes, but also for the delivery of expensive, flammable, explosive Media on the pipeline. Welded flange is not easy to deformation, sealed, widely used, nominal pressure PN at about 16MPa. Boiler pressure vessels, petroleum, chemicals, shipbuilding pharmaceuticals, metallurgy, machinery, food and other industries. Welding flange material: 201.202.301.302.303.304L.309S.310S316.316L.317.317L.321.410.420 and so on. Butt flange standard: GB, American standard, Japanese standard, German standard, Italian standard, Ministry of Chemical Industry standards, the Ministry of Machinery standards, pressure vessel standards. Butt flanges are flanges with neck and tube transition and butt welded to the tube. Butt flange name: stainless steel butt flange. Butt flange size: 1/2 "~ 80" (10-5000). Butt flange pressure rating: 0.6Mpa ~ 32Mpa (150Lb ~ 2500Lb).