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  
24"    600mm ASME B16.5 150 32 813 29 1/2 749 1 3/8 35 1 7/8 48    27 1/4 692   1/16 1.6 20
300 36 914 32 813 1 5/8 41 2 3/4 70 24
400 1 7/8 48 3 76  1/4 6.4
900 41 1041 35 1/2 902 2 5/8 67 5 1/2 140 20
BS EN 1092/1 (PN) 16 33  1/16 840 30  5/16 770 1  7/16 36 1  9/16 54 28  9/16 725   3/16 5 20
25 33 1/4 845 1  9/16 39 1 13/16 58 28 3/8 720
40 35  1/16 890 31  5/16 795 1 7/8 48 2 3/8 60 28 15/16 735
BS 10 E 32 1/2 826 29 3/4 756 1 1/4 32 1 1/2 38   16
F 33 1/2 851 30 3/4 781 1 3/8 35 1 5/8 41 24
H 2 1/4 57 27 1/2 699   1/16 1.6
J 1 1/2 38 2 3/4 70
 
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