Non-Metallic Gaskets dimensions - B16.47 Series B

Class 150-600 – NPS 26-60
Ball Long Pattern
NPS
d1
d2
Class 150
Class 300
Class 400
Class 600
26
660
725
772
746
765
28
711
776
826
800
819
30
762
827
886
857
879
32
813
881
940
911
933
34
864
935
994
962
997
36
914
987
1048
1022
1048
38
965
1045
1099
...
...
40
1016
1095
1149
...
...
42
1067
1146
1200
...
...
44
1118
1197
1251
...
...
46
1168
1256
1318
...
...
48
1219
1307
1368
...
...
50
1270
1357
1419
...
...
52
1321
1408
1470
...
...
54
1372
1464
1530
...
...
56
1422
1514
1594
...
...
58
1473
1580
1656
...
...
60
1524
1630
1705
...
...
NPS
d1
Class 150
Class 300
Class 400
Class 600
d2

General notes: