Dimensional data, bolt lengths, codes and weights for pipe flanges — HG/T, GB/T, DIN, JIS and ASME.
Look up HG/T 20592 and GB/T 9119 flange connection dimensions by pressure class and DN.
→Compare HG/T, GB/T, DIN, JIS and ASME flange dimensions side-by-side at the same DN.
→Query bolt size and stud/hex-bolt length for HG/T 20592 flanges.
→Pressure systems, Class↔PN mapping and sealing-face codes.
→Reference weights for GD86 welded flanges by pressure rating.
→Approximate PN↔Class mapping and both pressure systems at a glance.
→Allowable working pressure by material and temperature (ASME B16.34 / GB/T 9131).
→Data compiled from the YW121 flange reference collection. Verify against the official standard before use.