銆Flange is the most common in the pipeline project, mainly used for pipe connections, it can maintain the sealing performance of the pipeline, easy to open the situation to check the pipeline. Stainless steel flange has a near mirror brightness, feel cold and tough. Not according to the standard size of the flange is also known as the production of two standard flange (some people call non-standard flange is not correct), usually unscrupulous businesses will reduce the thickness of the flange, the outer diameter of two sizes to achieve material saving purpose. So, what are the common standards for stainless steel flanges? View the standard stainless steel flange Daquan.
Stainless steel flange commonly used standards:
GB: GB9112-88 (GB9113 · 1-88 ~ GB9123 · 36-88)
ANSI B16.5, ANSI 16.47 Class 150, 300, 600, 900, 1500 (TH, LJ, SW)
JIS: JIS 5K, 10K, 16K, 20K (PL, SO, BL)
25, 2572, 2573, 2576,
(PL, SO, WN, BL, TH) according to the method described in Japanese Patent Application Laid-Open (Kokai) Nos. 276-277, 2298,
British Standard: BS4504, 4506
Ministry of Chemical Industry Standard: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91
HG20592-97 (HG20593-97 ~ HG20614-97)
HG20615-97 (HG20616-97 ~ HG20635-97)
Machinery standards: JB81-59 ~ JB86-59, JB / T79-94 ~ JB / T86-94
Pressure vessel standard: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000
Marine flange standard: GB / T11694-94, GB / T3766-1996, GB / T11693-94, GB10746-89, GB / T4450-1995, GB / T11693-94, GB573-65, GB2506-89, CBM1012-81 , CBM1013 and the like.