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Flange (Flange) also known as flange or flange. The tube and pipe flanges are interconnected parts, connected to the pipe end. Flange connection or flange joint is defined by flanges, gaskets and bolts connected to each other as a set of three composite sealing structure removable connection means a pipe flange pipe flange for piping device, used in equipment means the equipment on the import and export flange. Holes on the flange, bolts so that the two flanges tightly connected. Sealing gaskets between flanges. Flange screw connection points (wire tapping) flange and welding flange.
Flange standards
1, DIN standards
1) Common Pressure Level: PN6, PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250
2) flange sealing surface: raised face DIN2526C raised face flange grooued acc. DIN2512N tongue and groove
2, ANSI standard
1) common pressure levels: CL150, CL300, CL600, CL900, CL1500
2) flange sealing surface: ANSI B 16.5 RF flanges raised face flange
3, JIS standard: not used
1) common pressure levels: 10K, 20K
Production standards
GB: GB/T9112-2000 (GB9113 · 1-2000 ~ GB9123? 4-2000) Ministry of Chemical Industry Standard: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91, HG20592-97 Series, HG20615-97 Series machines Department Standard: JB81-59 ~ JB86-59, JB/T79-94 ~ JB/T86-94, JB/T74-1994 pressure vessel standard: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000 B16.47A / B B16.39 B16.4
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