... Class300,Class600,Class900,Class1500,Class2500DIN6Bar, 10Bar, 16Bar, 25Bar, 40BarB.S. flangePN2.5 TO PN40JIS flange5K, 10K, 16K, 20K, ... 30KSizeANSI flange1/2" NB TO 24" NBDINDN10 - DN1000B.S. flange1/2" NB TO 48"NBJIS flangeDN10 - DN1500StandardANSI flangeANSI ... ,DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673 B.S. flangeBS 4504 SEC 3.1: WELDING NECK FLANGE(111/134 ...