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  
3"    80mm ASME B16.5 150 7 1/2 190 6 152  3/4 19 15/16 24 5 127   1/16 1.6 4
300 8 1/4 210 6 5/8 168  7/8 22 1 1/8 29 8
600 1 1/4 32  1/4 6.4
900 10 1/2 267 8 203 1 1/4 32 1 7/8 48
BS EN 1092/1 (PN) 16 7 7/8 200 6  5/16 160  11/16 18 13/16 20 5  7/16 138  1/8 3 8
25 15/16 24
40
BS 10 E 7 1/4 184 5 3/4 146  11/16 18   9/16 14   8
F 8 203 6 1/2 165  5/8 16
H  7/8 22 5 127   1/16 1.6
J  7/8 22 1 1/4 32
R
 
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