| FLANGE STANDARD | PRESSURE RATING | TYPE | FACING | MATERIAL |
| ANSI B16.5 | CLASS 150 300 400 600 900 1500 2500 LBS | SO WN SW TH LJ BL LWN | RF FF RTJetc |
ASTM SA105/105N A350 LF2 CL1/CL2 A694 F45/52/65, s235jr C22.8;A182 F304/304L A182 F316/316L A182 F317L A182 F310 F321 F347;A182 F5 F9 F11 F51 F53 F55 F60 F304H F316H F317H, C276 INCONEL 600 625; and etc.. |
| ANSI B16.47-A MSS | CLASS 150 300 400 600 900 LBS | WN BL | ||
| ANSI B16.47-B API | CLASS 75 150 300 400 600 900 LBS | |||
| ANSI/ASME B16.36 | CLASS 300 400 600 900 1500 2500 LBS | ORIFICE | ||
| ANSI/ASME B16.48 | CLASS 150 300 400 600 900 1500 2500 LBS | FIG.8 SPACER AND BLANK SPECTACLE |
||
| AWWA C207 | CLASS B & D TABLE 2/3, CLASS E TABLE 4 | SO PL BL | ||
| EN 1092-1 | PN 2.5 6 10 16 25 40 63 100 160 250 320 400 | PL LOO BL WN SO TH | ||
| BS 4504 | PN 2.5 6 10 16 25 40 | PL WN TH BL SO | ||
| DIN | PN 6 10 16 25 40 | PL WN TH BL LOO SO | ||
| UNI | PN 6 10 16 25 40 | PL WN TH BL LOO | ||
| SABS/SANS 1123 | CLASS 600 1000 1600 2500 4000 KPA | WN PL TH SO BL | ||
| JIS B2220/KS | 5K 10K 16K 20K 30K 40K | SOP/PL SOH/SO BL | ||
| GOST | PN 1 1.6 2.5 4 6.3 10 | PL WN BL | ||
| AS | TABLE D E F H | PL SO BL |
