Forged Flanges – Dimensions

ASME B16.47-B (API 605)

LARGE DIAMETER FLANGES SPECIFICATIONS ASME B16.47-B (API-605)

RATING NOMINAL PIPE SIZE
mm		 OD FLANGE
O		 FLANGE THICKNESS WELD NECK
QA		 FLANGE THICKNESS BLIND
QB		 OVERALL HEIGHT
YY		 RF DIAMETER
R		 HUB DIAMETER
X		 NECK DIAMETER
AW		 PCD
P		 NO. OF BOLT HOLES
N		 DIAMETER
HD
150 650 785 41.4 44.6 89 711 684 661.9 744.5 36 22.3
700 835 44.6 47.8 96 762 735 712.7 795.3 40 22.3
750 885 44.6 50.9 100 813 787 763.5 846.1 44 22.3
800 940 46.2 54.1 108 864 840 814.3 900.1 48 22.3
850 1005 49.3 57.3 111 921 892 865.1 957.3 40 25.4
900 1055 52.5 58.9 118 972 945 915.9 1009.6 44 25.4
950 1125 54.1 63.6 124 1022 997 968.2 1070.0 40 28.5
1000 1175 55.7 66.8 129 1080 1049 1019.0 1120.8 44 28.5
1050 1225 58.9 68.4 134 1130 1102 1069.8 1171.6 48 28.5
1100 1275 60.5 71.6 137 1181 1153 1120.6 1222.4 52 28.5
1150 1340 62.0 74.6 145 1235 1205 1171.4 1284.3 40 31.7
1200 1390 65.2 77.9 150 1289 1257 1222.2 1335.1 44 31.7
300 650 865 89.0 89.0 145 737 702 665.2 803.3 32 34.9
700 920 89.0 89.0 150 787 756 716.0 857.2 36 34.9
750 990 93.7 93.6 158 845 813 768.4 920.8 36 38.1
800 1055 103.2 103.2 169 902 864 819.2 977.9 32 41.2
850 1110 103.2 103.2 173 953 918 870.0 1031.9 36 41.2
900 1170 103.2 103.2 181 1010 965 920.8 1089.0 32 44.4
950 1220 111.2 111.2 193 1060 1016 971.6 1139.8 36 44.4
1000 1275 115.9 115.9 199 1114 1067 1022.4 1190.6 40 44.4
1050 1335 119.1 119.1 205 1168 1118 1074.7 1244.6 36 47.6
1100 1385 127.1 127.1 215 1219 1173 1125.5 1295.4 40 47.6
1150 1460 128.6 130.1 223 1270 1229 1176.3 1365.2 36 50.8
1200 1510 128.6 134.9 224 1327 1278 1227.1 1416.0 40 50.8
600 650 890 111.2 111.3 181 727 698 660.4 806.4 28 44.4
700 950 115.9 115.9 190 784 752 711.2 863.6 28 47.6
750 1020 125.5 127.0 205 841 806 762.0 927.1 28 50.8
800 1085 130.2 134.9 216 895 860 812.8 984.2 28 53.9
850 1160 141.3 144.2 233 953 914 863.6 1054.1 24 60.3
900 1215 146.1 150.9 243 1010 968 914.4 1104.9 28 60.3
900 650 1020 135.0 154.0 259 762 743 660.4 901.7 20 66.6
700 1105 147.7 166.7 276 819 797 711.2 971.6 20 73.0
750 1180 155.6 176.1 289 876 851 762.0 1035.0 20 79.3
800 1240 160.4 186.0 303 927 908 812.8 1092.2 20 79.3
850 1315 171.5 195.0 319 991 962 863.6 1155.7 20 85.7
900 1345 173.1 201.7 325 1029 1016 914.4 1200.2 24 79.3

RH SIZE:

150 & 300 RATING 1.6mm INCLUDED IN QA, QB AND YY DIMENSION.

600 & 900 RATING 6.4mm NOT INCLUDED IN QA, QB AND YY DIMENSION.

*WN BORE J: TO BE SPECIFIED BY PURCHASER.

*All dimensions are in millimetres (mm)

*For tolerance please refer to ASME B16.47