National Standard of the People's Republic of China Marine Oval Welded Steel Flange 1. Basic parameters of flanges are as shown in Table 1. Nominal joint force kG/cm2 2. Flange dimensions are as shown in the following figure and Table 2. Nominal flange price at working temperature 290\C Maximum working pressure PkG/cm2 Thread length Unit: mm Sealing surface GB581-76 Adjusted to Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.