Dimension of Flat Ring Gaskets above 24 inches

Expired

Dimensions of Class 150 to Class 600 Flat Ring Gaskets to ASME B16.21 for use with ASME B16.47 Series A RF Flanges.

Flat Ring Gasket Dimensions

Nominal Pipe Size Inside Diameter
(mm)		 Outside Diameter
(mm)
DN INCH Class 150 Class 300 Class 400 Class 600
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 1006 1003 1022
850 34 864 991 1057 1054 1073
900 36 914 1048 1118 1118 1130
950 38 965 1111 1054 1073 1105
1000 40 1016 1162 1114 1127 1156
1050 42 1067 1219 1165 1178 1219
1100 44 1118 1276 1219 1232 1270
1150 46 1168 1327 1273 1289 1327
1200 48 1219 1384 1324 1346 1391
1250 50 1270 1435 1378 1403 1448
1300 52 1321 1492 1429 1454 1499
1350 54 1372 1549 1492 1518 1556
1400 56 1422 1607 1543 1568 1613
1450 58 1473 1664 1594 1619 1664
1500 60 1524 1715 1645 1683 1721
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