Hebei Chiho steel flange pipe industry standards; Ministry of Chemical Industry Standard: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91, HG20592-2009 (PN series) \ HG20615-2009 (Calss series) machinery of the standard: JB81-59 ~ JB86-59, JB / T79-94 ~ JB / T86-94, JB / T74-1994 Pressure Vessel Code: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000 steel flange Applications : boilers, pressure vessels, petroleum, chemical, shipbuilding, pharmaceutical, metallurgy, machinery, food and other industries. Hebei Industry Chiho 1, pressure vessel flange Scope: This standard specifies the use of influenza flat steel pressure vessel welding flange structural formula and series size. This standard applies to nominal pressure 0.25-1.6MPa, the working temperature is higher than -20 ℃ ~ 300 ℃ influenza steel pressure vessel welded flange 2, the pressure vessel flange flange standard references: JB / T4700-2000 pressure Classification and technical conditions vessel flange JB / T4704-2000 3 non-metallic container structure and size of the various types of flange sealing surface welded flange structure influenza soft heat sink JB / T4704-2000 and other long stud Type and family size should be consistent with the provisions of welded steel flange under the table, the quality of the flange and the collar of the table below. Figure Alloy Steel Alloy Steel Flanges flange steel flange Cixi _ _ Hebei Chiho Chiho by Hebei Industry Co., Ltd. Hebei Chiho Pipe Co., Ltd. (www.hbqh628.com) (www.hbqh628.com) strong, credible, Cangzhou in Hebei forging industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hebei Chiho into the brilliant and you work for a better future!