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B16.47 – Series A/MSS SP44 Flanges – Class 400

Series A/MSS SP44 Flanges

Class 400

Size   O WNF BLIND Y X A R Diam. of bolt circle No. of holes Diam. of bolt hole Diam. of bolt R1
      WNF BLIND                  
    O C C Y X A R         r1
in. 26″ 38.25 3.5 3.88 7.62 28.62 26 29.5 34.5 28 1.88 1 3/4 0.44
mm.   971.6 88.9 98.6 193.5 726.9 660.4 749.3 876.3   47.8 44.5 11.2
in. 28″ 40.75 3.75 4.12 8.12 30.81 28 31.5 37 28 2 1 7/8 0.5
mm.   1035.1 95.3 104.6 206.2 782.6 711.2 800.1 939.8   50.8 47.6 12.7
in. 30″ 43 4 4.38 8.62 32.94 30 33.75 39.25 28 2.12 2 0.5
mm.   1092.2 101.6 111.3 218.9 836.7 762 857.3 997   53.8 50.8 12.7
in. 32″ 45.25 4.25 4.56 9.12 35 32 36 41.25 28 2.12 2 0.5
mm.   1149.4 108 115.8 231.6 889 812.8 914.4 1047.8   53.8 50.8 12.7
in. 34″ 47.5 4.38 4.81 9.5 37.19 34 38 43.5 28 2.12 2 0.56
mm.   1206.5 111.3 122.2 241.3 944.6 863.6 965.2 1104.9   53.8 50.8 14.2
in. 36″ 50 4.5 5.06 9.88 39.38 36 40.25 46 32 2.12 2 0.56
mm.   1270 114.3 128.5 251 1000.3 914.4 1022.4 1168.4   53.8 50.8 14.2
in. 38″ 47.5 4.88 4.88 8.12 39.5 38 40.75 44 32 1.88 1 3/4 0.56
mm.   1206.5 124 124 206.2 1003.3 965.2 1035.1 1117.6   47.8 44.5 14.2
in. 40″ 50 5.12 5.12 8.5 41.5 40 43 46.25 32 2 1 7/8 0.56
mm.   1270 130 130 215.9 1054.1 1016 1092.2 1174.8   50.8 47.6 14.2
in. 42″ 52 5.25 5.25 8.81 43.62 42 45 48.25 32 2 1 7/8 0.56
mm.   1320.8 133.4 133.4 223.8 1107.9 1066.8 1143 1225.6   50.8 47.6 14.2
in. 44″ 54.5 5.5 5.5 9.18 45.62 44 47.25 50.5 32 2.12 2 0.56
mm.   1384.3 139.7 139.7 233.2 1158.7 1117.6 1200.2 1282.7   53.8 50.8 14.2
in. 46″ 56.75 5.75 5.75 9.62 47.75 46 49.5 52.75 36 2.12 2 0.56
mm.   1441.5 146.1 146.1 244.3 1212.9 1168.4 1257.3 1339.9   53.8 50.8 14.2
in. 48″ 59.5 6 6 10.12 49.88 48 51.5 55.25 28 2.38 2 1/4 0.56
mm.   1511.3 152.4 152.4 257 1267 1219.2 1308.1 1403.4   60.5 57.2 14.2
in. 50″ 61.75 6.19 6.25 10.56 52 50 53.62 57.5 32 2.38 2 1/4 0.56
mm.   1568.5 157.2 158.8 268.2 1320.8 1270 1361.9 1460.5   60.5 57.2 14.2
in. 52″ 63.75 6.38 6.44 10.88 54 52 55.62 59.5 32 2.38 2 1/4 0.56
mm.   1619.3 162.1 163.6 276.4 1371.6 1320.8 1412.7 1511.3   60.5 57.2 14.2
in. 54″ 67 6.69 6.75 11.38 56.12 54 57.88 62.25 28 2.62 2 1/2 0.56
mm.   1701.8 169.9 171.5 289.1 1425.4 1371.6 1470.2 1581.2   66.5 63.5 14.2
in. 56″ 69 6.88 6.94 11.75 58.25 56 60.12 64.25 32 2.62 2 1/2 0.56
mm.   1752.6 174.8 176.3 298.5 1479.6 1422.4 1527 1632   66.5 63.5 14.2
in. 58″ 71 7 7.12 12.06 60.25 58 62.12 66.25 32 2.62 2 1/2 0.56
mm.   1803.4 177.8 180.8 306.3 1530.4 1473.2 1577.8 1682.8   66.5 63.5 14.2
in. 60″ 74.25 7.31 7.44 12.56 62.38 60 64.38 69 32 2.88 2 5/8 0.56
mm.   1886 185.7 189 319 1584.5 1524 1635.3 1752.6   73.2 66.7 14.2
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