Gasket Dimensions for Flat Ring and Full Face Applications
ASME B16.47 Series B Class 300 (Previously API 605)
Nominal Bore |
Gasket ID |
IBC Gasket OD |
Full Face |
Nominal Bore |
Gasket OD |
Diameter of Bolt Holes |
Bolt P.C.D. |
Number of Bolt Holes |
Inches |
mm |
Inches |
mm |
Inches |
mm |
Inches |
mm |
Inches |
mm |
26 |
26 |
660.4 |
30 3/8 |
771.5 |
34 1/8 |
866.8 |
1 3/8 |
34.9 |
31 5/8 |
803.3 |
32 |
26 |
28 |
28 |
711.2 |
32 1/2 |
825.5 |
36 1/4 |
920.8 |
1 3/8 |
34.9 |
33 3/4 |
857.3 |
36 |
28 |
30 |
30 |
762.0 |
34 7/8 |
885.8 |
39 |
990.6 |
1 1/2 |
38.1 |
36 1/4 |
920.8 |
36 |
30 |
32 |
32 |
812.8 |
37 |
939.8 |
41 1/2 |
1054.1 |
1 5/8 |
41.3 |
38 1/2 |
977.9 |
32 |
32 |
34 |
34 |
863.6 |
39 1/8 |
993.8 |
43 5/8 |
1108.1 |
1 5/8 |
41.3 |
40 5/8 |
1031.9 |
36 |
34 |
36 |
36 |
914.4 |
41 1/4 |
1047.8 |
46 1/8 |
1171.6 |
1 3/4 |
44.5 |
42 7/8 |
1089.0 |
32 |
36 |
38 |
38 |
965.2 |
43 1/4 |
1098.6 |
48 1/8 |
1222.4 |
1 3/4 |
44.5 |
44 7/8 |
1139.8 |
36 |
38 |
40 |
40 |
1016.0 |
45 1/4 |
1149.4 |
50 1/8 |
1273.2 |
1 3/4 |
44.5 |
46 7/8 |
1190.6 |
40 |
40 |
42 |
42 |
1066.8 |
47 1/4 |
1200.2 |
52 1/2 |
1333.5 |
1 7/8 |
47.6 |
49 |
1244.6 |
36 |
42 |
44 |
44 |
1117.6 |
49 1/4 |
1251.0 |
54 1/2 |
1384.3 |
1 7/8 |
47.6 |
51 |
1295.4 |
40 |
44 |
46 |
46 |
1168.4 |
51 7/8 |
1317.6 |
57 1/2 |
1460.5 |
2 |
50.8 |
53 3/4 |
1365.3 |
36 |
46 |
48 |
48 |
1219.2 |
53 7/8 |
1368.4 |
59 1/2 |
1511.3 |
2 |
50.8 |
55 3/4 |
1416.1 |
40 |
48 |
50 |
50 |
1270.0 |
55 7/8 |
1419.2 |
61 1/2 |
1562.1 |
2 |
50.8 |
57 3/4 |
1466.9 |
44 |
50 |
52 |
52 |
1320.8 |
57 7/8 |
1470.0 |
63 1/2 |
1612.9 |
2 |
50.8 |
59 3/4 |
1517.7 |
48 |
52 |
54 |
54 |
1371.6 |
61 1/4 |
1555.8 |
65 7/8 |
1673.2 |
2 |
50.8 |
62 1/8 |
1578.0 |
48 |
54 |
56 |
56 |
1422.4 |
62 3/4 |
1593.9 |
69 1/2 |
1765.3 |
2 3/8 |
60.3 |
65 |
1651.0 |
36 |
56 |
58 |
58 |
1473.2 |
65 7/8 |
1673.2 |
71 15/16 |
1827.2 |
2 3/8 |
60.3 |
67 7/16 |
1712.9 |
40 |
58 |
60 |
60 |
1524.0 |
67 1/8 |
1705.0 |
73 15/16 |
1878.0 |
2 3/8 |
60.3 |
69 7/16 |
1763.7 |
40 |
60 |