EAGLEBURGMANN
42
Flat gaskets dimensions
(acc. to ASME B16.21 (2011))
Dimensions of flat gaskets to ASME B16.21 (2011) for ASME B16.47, series A, raised-face flanges
Nominal Size
Inner diameter (mm)
Class
DN
(mm)
NPS
(inch)
150 lbs
300 lbs
400 lbs
600 lbs
Outside diameter (mm)
550
22
559
660
705
702
734
650
26
660
775
835
832
867
700
28
711
832
899
892
914
750
30
762
883
953
946
972
800
32
813
940
1,006
1,003
1,022
850
34
864
991
1,057
1,054
1,073
900
36
914
1,048
1,118
1,118
1,130
950
38
965
1,111
1,054
1,074
1,105
1,000
40
1,016
1,162
1,114
1,127
1,156
1,050
42
1,067
1,219
1,165
1,178
1,219
1,100
44
1,118
1,276
1,219
1,232
1,270
1,150
46
1,168
1,327
1,273
1,289
1,327
1,200
48
1,219
1,384
1324年
1,346
1,391
1,250
50
1,270
1,435
1,378
1,403
1448年
1,300
52
1,321
1,492
1,429
1,454
1,556
1,350
54
1,372
1,549
1,492
1,518
1,556
1,400
56
1,422
1,607
1,543
1569年
1,613
1,450
58
1,473
1,664
1,594
1,619
1,664
1,500
60
1,524
1,715
1,645
1,683
1,734
Dimensions of flat gaskets to ASME B16.21 (2011) for ASME B16.47, series B, raised-face flanges
Nominal Size
Inner diameter (mm)
Class
DN
(mm)
NPS
(inch)
75 lbs
150 lbs
300 lbs
400 lbs
600 lbs
Outside diameter (mm)
650
26
660
708
725
772
746
765
700
28
711
759
776
826
800
819
750
30
762
810
827
886
857
879
800
32
813
861
881
940
911
934
850
34
864
911
935
994
962
997
900
36
914
973
988
1,048
1,022
1,048
950
38
965
1,024
1,044
1,099
1,000
40
1,016
1,075
1,095
1,149
1,050
42
1,067
1,126
1,146
1,200
1,100
44
1,118
1,181
1,197
1,251
1,150
46
1,168
1,232
1,256
1,318
1,200
48
1,219
1,283
1,307
1,369
1,250
50
1,270
1,334
1,357
1,419
1,300
52
1,321
1,387
1,408
1,470
1,350
54
1,372
1,438
1,464
1,556
1,400
56
1,422
1,496
1,514
1,594
1,450
58
1,473
1,546
1,580
1,656
1,500
60
1,524
1,597
1,630
1,705