Forged Flanges – Dimensions

ASME B16.47-A (MSS SP44)

LARGE DIAMETER FLANGES SPECIFICATIONS ASME B16.47-A (MSS-SP44)

RATING NOMINAL PIPE SIZE
mm		 OD FLANGE
O		 FLANGE THICK-NESS WELD NECK
QA		 FLANGE THICK-NESS BLIND
QB		 OVERALL HEIGHT
YY		 HUB DIAMETER
X		 PCD
P		 NUMBER HOLES
N		 HOLE DIAMETER
HD		 RF DIAMETER
R		 RTJ DIAMETER
K		 RING PITCH DIAMETER
RP		 DEPTH GROOVE
E		 WIDTH GROOVE
F		 RING NUMBER
RN
150 650 870 68.4 68.4 121 676 806.4 24 35.0 749          
700 925 71.4 71.4 126 727 863.6 28 35.0 800          
750 985 74.7 74.7 137 781 914.4 28 35.0 857          
800 1060 81.0 81.0 145 832 977.9 28 41.1 914          
850 1110 82.6 82.6 150 883 1028.7 32 41.1 965          
900 1170 90.5 90.5 158 933 1085.8 32 41.1 1022          
950 1240 87.4 87.4 158 991 1149.4 32 41.1 1073          
1000 1290 90.5 90.5 164 1041 1200.2 36 41.1 1124          
300 650 970 79.3 84.1 185 721 876.3 28 44.4 749 810 749.3 12.7 19.8 93
700 1035 85.8 90.5 197 775 939.8 28 44.4 800 861 800.1 12.7 19.8 94
750 1090 92.1 95.3 210 827 997.0 28 47.7 857 917 857.2 12.7 19.8 95
800 1150 98.6 100.1 223 881 1054.1 28 50.8 914 984 914.4 14.2 23.0 96
850 1205 101.7 104.8 232 937 1104.9 28 50.8 965 1035 965.2 14.2 23.0 97
900 1270 104.8 111.2 242 991 1168.4 32 53.8 1022 1092 1022.3 14.2 23.0 98
950 1170 108.0 108.0 181 994 1092.2 32 41.1 1029          
1000 1240 114.4 114.4 194 1048 1155.7 32 44.4 1086          
600 650 1015 108.0 125.5 222 748 914.4 28 50.8 749 810 749.3 12.7 19.8 93
700 1075 111.2 131.8 235 803 965.2 28 53.9 800 861 800.1 12.7 19.8 94
750 1130 114.3 139.7 248 862 1022.4 28 53.9 857 917 857.2 12.7 19.8 95
800 1195 117.5 147.7 260 918 1079.5 28 60.3 914 984 914.4 14.2 23.0 96
850 1245 120.7 154.0 270 973 1130.3 28 60.3 965 1035 965.2 14.2 23.0 97
900 1315 123.9 162.0 283 1032 1193.8 28 66.6 1022 1092 1022.3 14.2 23.0 98
950 1270 152.4 155.0 254 1022 1162.0 28 60.3 1054          
1000 1320 158.8 162.0 264 1073 1212.8 32 60.3 1111          
900 650 1085 139.7 160.4 286 775 952.5 20 73.0 749 832 749.3 17.4 30.1 100
700 1170 142.9 171.5 298 832 1022.4 20 79.3 800 889 800.1 17.4 33.3 101
750 1230 149.3 182.6 311 889 1085.8 20 79.3 857 946 857.2 17.4 33.3 102
800 1315 158.8 193.7 330 946 1155.7 20 85.7 914 1003 914.4 17.4 33.3 103
850 1395 165.1 204.8 349 1006 1225.6 20 92.0 965 1067 965.2 20.6 36.5 104
900 1460 171.5 214.4 362 1064 1289.0 20 92.0 1022 1129 1022.3 20.6 36.5 105
950 1460 190.5 215.9 352 1073 1289.0 20 92.0 1099          
1000 1510 196.9 223.9 364 1127 1339.8 24 92.0 1162          

*RH SIZE:

 

*WN BORE J:

*AW DIAMETER OF NECK:

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.

TO BE SPECIFIED BY PURCHASER.

TO MATCH PIPE OD.

*All dimensions are in millimetres (mm)

*For tolerance please refer to ASME B16.47