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Type of Flanges
Class & Size Range
Weld Neck Flanges
Slip On Flanges
Socket Weld Flanges
Lap Joint Flanges
Blind Flanges
Threaded Flanges
ASME B 16.47 A
ASME B16.47 B
WN Flange Bore
Figure 8 Blanks
Ring Joint Facing
AWWA Steel Ring
AWWA Steel hub
Approx Weight
Gaskets
Bolts & Nuts
PL Flanges (EN1092.1)
WN Flanges (EN1092.1)
SO Flanges (EN1092.1)
Th Flanges (EN1092.1)
BL Flanges (EN1092.1)
Backing Rings

ASME B 16.47 A 

                                                                                              f =2mm on class 150 &300 and =7mm on higher

Dimesions of  ASME B16.47 flanges - Series A 


Class 150

DN  NPS Overall Diameter  Thickness (Min.) C Overall Lenght  Diameter at Bevel Diameter of Hub Diameter of Face Number of Bolts Diameter of Bolt Holes  Diameter of Bolt Circle  Fillet Radius 
( Min.)
　 　 A WN BL D E F G n  I J R
650 26 870 66.7 66.7 119 660.4 676 749 24 34.9 806.4 10
700 28 925 69.9 69.9 124 711.2 727 800 28 34.9 863.6 11
750 30 985 73.1 73.1 135 762.0 781 857 28 34.9 914.4 11
800 32 1060 79.4 79.4 143 812.8 832 914 28 41.3 977.9 11
850 34 1110 81.0 81.0 148 863.6 883 965 32 41.3 1028.7 13
900 36 1170 88.9 88.9 156 914.4 933 1022 32 41.3 1085.8 13
950 38 1240 85.8 85.8 156 965.2 991 1073 32 41.3 1149.4 13
1000 40 1290 88.9 88.9 162 1016.0 1041 1124 36 41.3 1200.2 13
1050 42 1345 95.3 95.3 170 1066.8 1092 1194 36 41.3 1257.3 13
1100 44 1405 100.1 100.1 176 1117.6 1143 1245 40 41.3 1314.4 13
1150 46 1455 101.6 101.6 184 1168.4 1197 1295 40 41.3 1365.2 13
1200 48 1510 106.4 106.4 191 1219.2 1248 1359 44 41.3 1422.4 13
1250 50 1570 109.6 109.6 202 1270.0 1302 1410 44 47.6 1479.6 13
1300 52 1625 114.3 114.3 208 1320.8 1353 1461 44 47.6 1536.7 13
1350 54 1685 119.1 119.1 214 1371.6 1403 1511 44 47.6 1593.8 13
1400 56 1745 122.3 122.3 227 1422.4 1457 1575 48 47.6 1651.0 13
1450 58 1805 127.0 127.0 233 1473.2 1508 1626 48 47.6 1708.2 13
1500 60 1855 130.2 130.2 238 1524.0 1559 1676 52 47.6 1759.0 13


Class 300
DN  NPS Overall Diameter  Thickness (Min.) C Overall Lenght  Diameter at Bevel Diameter of Hub Diameter of Face Number of Bolts Diameter of Bolt Holes  Diameter of Bolt Circle  Fillet Radius( Min.)
　 　 A WN BL D E F G n  I J R
650 26 970 77.8 82.6 183 660.4 721 749 28 44.5 876.3 10
700 28 1035 84.2 88.9 195 711.2 775 800 28 44.5 939.8 11
750 30 1090 90.5 93.7 208 762.0 827 857 28 47.6 997.0 11
800 32 1150 96.9 98.5 221 812.8 881 914 28 50.8 1054.1 11
850 34 1205 100.1 103.2 230 863.6 937 965 28 50.8 1104.9 13
900 36 1270 103.2 109.6 240 914.4 991 1022 32 54.0 1168.4 13
950 38 1170 106.4 106.4 179 965.2 994 1029 32 41.3 1092.2 13
1000 40 1240 112.8 112.8 192 1016.0 1048 1086 32 44.5 1155.7 13
1050 42 1290 117.5 117.5 198 1066.8 1099 1137 32 44.5 1206.5 13
1100 44 1355 122.3 122.3 205 1117.6 1149 1194 32 47.6 1263.6 13
1150 46 1415 127.0 127.0 214 1168.4 1203 1245 28 50.8 1320.8 13
1200 48 1465 131.8 131.8 222 1219.2 1254 1302 32 50.8 1371.6 13
1250 50 1530 138.2 138.2 230 1270.0 1305 1359 32 54.0 1428.8 13
1300 52 1580 142.9 142.9 237 1320.8 1356 1410 32 54.0 1479.6 13
1350 54 1660 150.9 150.9 251 1371.6 1410 1467 28 60.3 1549.4 13
1400 56 1710 152.4 152.4 259 1422.4 1464 1518 28 60.3 1600.2 13
1450 58 1760 157.2 157.2 265 1473.2 1514 1575 32 60.3 1651.0 13
1500 60 1810 162.0 162.0 271 1524.0 1565 1626 32 60.3 1701.8 13

Class 400
DN  NPS Overall Diameter  Thickness (Min.) C Overall Lenght  Diameter at Bevel Diameter of Hub Diameter of Face Number of Bolts Diameter of Bolt Holes  Diameter of Bolt Circle  Fillet Radius( Min.)
　 　 A WN BL D E F G n  I J R
650 26 970 88.9 98.5 194 660.4 727 749 28 47.6 876.3 11
700 28 1035 95.3 104.8 206 711.2 783 800 28 50.8 939.8 13
750 30 1090 101.6 111.2 219 762.0 837 857 28 54.0 997.0 13
800 32 1150 108.0 115.9 232 812.8 889 914 28 54.0 1054.1 13
850 34 1205 111.2 122.3 241 863.6 945 965 28 54.0 1104.9 14
900 36 1270 114.3 128.6 251 914.4 1000 1022 32 54.0 1168.4 14
950 38 1205 123.9 123.9 206 965.2 1003 1035 32 47.6 1117.6 14
1000 40 1270 130.2 130.2 216 1016.0 1054 1092 32 50.8 1174.8 14
1050 42 1320 133.4 133.4 224 1066.8 1108 1143 32 50.8 1225.6 14
1100 44 1385 139.7 139.7 233 1117.6 1159 1200 32 54.0 1282.7 14
1150 46 1440 146.1 146.1 244 1168.4 1213 1257 36 54.0 1339.8 14
1200 48 1510 152.4 152.4 257 1219.2 1267 1308 28 60.3 1403.4 14
1250 50 1570 157.2 157.2 268 1270.0 1321 1362 32 60.3 1460.5 14
1300 52 1620 162.0 162.0 276 1320.8 1372 1413 32 60.3 1511.3 14
1350 54 1700 169.9 169.9 289 1371.6 1426 1470 28 66.7 1581.2 14
1400 56 1755 174.7 174.7 298 1422.4 1480 1527 32 66.7 1632.0 14
1450 58 1805 177.8 177.8 306 1473.2 1530 1578 32 66.7 1682.8 14
1500 60 1885 185.8 185.8 319 1524.0 1584 1635 32 73.0 1752.6 14

Class 600
DN  NPS Overall Diameter  Thickness (Min.) C Overall Lenght  Diameter at Bevel Diameter of Hub Diameter of Face Number of Bolts Diameter of Bolt Holes  Diameter of Bolt Circle  Fillet Radius( Min.)
　 　 A WN BL D E F G n  I J R
650 26 1015 108.0 125.5 222 660.4 748 749 28 50.8 914.4 13
700 28 1075 111.2 131.8 235 711.2 803 800 28 54.0 965.2 13
750 30 1130 114.3 139.7 248 762.0 862 857 28 54.0 1022.4 13
800 32 1195 117.5 147.7 260 812.8 918 914 28 60.3 1079.5 13
850 34 1245 120.7 154.0 270 863.6 973 965 28 60.3 1130.3 14
900 36 1315 123.9 162.0 283 914.4 1032 1022 28 54.0 1193.8 14
950 38 1270 152.4 155.0 254 965.2 1022 1054 28 60.3 1162.0 14
1000 40 1320 158.8 162.0 264 1016.0 1073 1111 32 60.3 1212.8 14
1050 42 1405 168.3 171.5 279 1066.8 1127 1168 28 54.0 1282.7 14
1100 44 1455 173.1 177.8 289 1117.6 1181 1226 32 54.0 1333.5 14
1150 46 1510 179.4 185.8 300 1168.4 1235 1276 32 54.0 1390.6 14
1200 48 1595 189.0 195.3 316 1219.2 1289 1334 32 73.0 1460.5 14
1250 50 1670 196.9 203.2 329 1270.0 1343 1384 28 79.4 1524.0 14
1300 52 1720 203.2 209.6 337 1320.8 1394 1435 32 79.4 1574.8 14
1350 54 1780 209.6 217.5 349 1371.6 1448 1492 32 79.4 1632.0 14
1400 56 1855 217.5 225.5 362 1422.4 1502 1543 32 85.7 1695.4 16
1450 58 1905 222.3 231.8 370 1473.2 1553 1600 32 85.7 1746.2 16
1500 60 1995 233.4 242.9 389 1524.0 1610 1657 28 92.1 1822.4 17

Class 900
DN  NPS Overall Diameter  Thickness (Min.) C Overall Lenght  Diameter at Bevel Diameter of Hub Diameter of Face Number of Bolts Diameter of Bolt Holes  Diameter of Bolt Circle  Fillet Radius( Min.)
　 　 A WN BL D E F G n  I J R
650 26 1085 139.7 160.4 286 660.4 775 749 20 73.0 952.5 11
700 28 1170 142.9 171.5 298 711.2 832 800 20 79.4 1022.4 13
750 30 1230 149.3 182.6 311 762.0 889 857 20 79.4 1085.8 13
800 32 1315 158.8 193.7 330 812.8 946 914 20 85.7 1155.7 13
850 34 1395 165.1 204.8 349 863.6 1006 965 20 92.0 1225.6 14
900 36 1460 171.5 214.4 362 914.4 1064 1022 20 92.0 1289.0 14
950 38 1460 190.5 215.9 352 965.2 1073 1099 20 92.0 1289.0 19
1000 40 1510 196.9 223.9 364 1016.0 1127 1162 24 92.0 1339.8 21
1050 42 1560 206.4 231.8 371 1066.8 1176 1213 24 92.0 1390.6 21
1100 44 1650 214.4 242.9 391 1117.6 1235 1270 24 98.4 1463.7 22
1150 46 1735 225.5 255.6 411 1168.4 1292 1334 24 104.8 1536.7 22
1200 48 1785 233.4 263.6 419 1219.2 1343 1384 24 104.8 1587.5 24



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