Flat plate concave convex flange has no national standards?
No national standards;A flange in the form of a concave convex surface. The pressure is generally high, while the high pressure products are welded or socket welded. Not really flat plate. However, if it is hard to do, there is no problem.But there is no national standard. We are the manufacturer of flanges.
This is really not available, to the concave convex form of the flange. The pressure is generally high, while the high pressure products are welded or socket welded. Not really flat plate. However, if it is hard to do, there is no problem. But there is no national standard. We are the manufacturer of flanges. Hebei Wan Xing Pipe Industry Co., Ltd., my name is Zhu Xuechun. I hope my answer can help you.
No, to the concave convex form of the flange. The pressure is generally high, while the high pressure products are welded or socket welded. Not really flat plate. However, if it is hard to do, there is no problem. But there is no national standard.GB: GB/T9112-2010 (GB9113, 1-2010 ~ GB9123 = 4-2010)Ministry of chemical industry standards: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91, HG20592-2009 series, HG20615-2009 seriesMechanical department standard: JB81-59 ~ JB86-59, JB/T79-94 ~ JB/T86-94, JB/T74-1994Pressure vessel standard: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000, B16.47A/B, B16.39, B16.
