Flange Comparison Table
 
SIZE STAND-ARD CLASS FLANGE DIAMETER BOLT HOLE P.C.D. BOLT HOLE DIAMETER FLANGE THICKNESS RAISED FACE DIAMETER RAISED FACE HEIGHT No. OF BOLTS
D P d t R f N
ins mm ins mm ins mm ins mm ins mm ins mm  
8"    200mm ASME B16.5 150 13 1/2 343 11 3/4 299  7/8 22 1 1/8 28 10 5/8 270   1/16 1.6 8
300 15 381 13 330 1 25 1 5/8 41 12
600 16 1/2 419 13 3/4 351 1 1/4 32 2  3/16 56  1/4 6.4
900 18 1/2 470 15 1/2 394 1 1/2 38 2 1/2 64
BS EN 1092/1 (PN) 16 13 3/8 340 11 5/8 295 15/16 23 15/16 24 10  9/16 268  1/8 3 12
25 14  3/16 360 12  3/16 310 1  1/16 27 1  3/16 30 10 15/16 278
40 14 3/4 375 12 5/8 320 1  3/16 30 1 3/8 34 11  3/16 285
BS 10 E 13 1/4 337 11 1/2 292 13/16 21  3/4 19   8
F 14 1/2 368 12 3/4 324 1 25 12
H 1 1/4 32 10 1/4 260   1/16 1.6
J 15/16 24 1 5/8 41
R 1  1/16 27 2 51
 
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