Pipe Flanges Rating in Different Norms

1) American norms

ANSI, API, AWWA, MSS

Flange rating: 75lbs, 150lbs, 300lbs, 600lbs, 900lbs, 1500lbs, 2500lbs

2) European norms

DIN, EN1092-1, BS4504, UNI

Flange rating: PN6, PN10, PN16, PN25, PN40, PN63, PN64, PN100

3) Russian flanges

GOST 12820 and GOST 12821

Flange rating: PN0.6MPA, PN1.0MPA, PN1.6MPA, PN2.5MPA, PN4.0MPA.

4) Africa

SANS1123 or SABS1123

Flange rating: 600kpa, 1000kpa, 1600kpa, 2500kpa, 4000kpa

5) Chinese flanges

CCCP

Flange rating: PN6, PN10, PN16, PN25, PN40, PN63, PN64, PN100

6) British

BS10 TABLE D, BS10 TABLE E FLANGE, BS4504

Flange rating:

7) Australian

BS10 TABLE D, BS10 TABLE E FLANGE, BS4504

Flange rating:

8) Japanese

JIS B2220

Flange rating:

9) Korean

KS B1503

Flange rating: