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  
3/4" 20mm ASME B16.5 150 3 7/8 98 2 3/4 70   5/8 16  1/2 13 1 11/16 43   1/16 1.6 4
300 4 5/8 117 3 1/4 83   3/4 19  5/8 16
600  1/4 6.4
900 5 1/8 130 3 1/2 90  11/16 18 1 25
BS EN 1092/1 (PN) 16 4 1/8 105 2 15/16 75   9/16 14  5/8 16 2  5/16 58   1/16 2 4
25  11/16 18
40
BS 10 E 4 102 2 7/8 73   9/16 14  3/8 10   4
F
H 4 1/2 114 3 1/4 83  11/16 18  1/2 13 2 1/4 57   1/16 1.6
J  5/8 16
R  3/4 19 2 1/2 64
 
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