LARGE DIAMETER FLANGES SERIES A / MSS SP44 ASME B16.47 Class 900

SERIES A FLANGES

Nominal
Size
NPS
Outside
Diameter
of
Flange
Thickness
of
Flange
Length
thru
Hub
Diameter Of Hub At Base Diameter Of Hub At Point of Welding Diameter Of Raised
Face
Diameter
of
Bolt
Circle
Number of
Bolt Holes
Diameter
of
Bolt
Holes
Diameter
of
Bolts
Fillet Radius Min
WNF BLIND
O C C Y X A R r1
26 in. 42.75 5.5 6.31 11.25 30.5 26 29.5 37.5 20 2.88 2 ¾ 0.44
mm 1085.9 139.7 160.3 285.8 774.7 660.4 749.3 952.5 73.2 69.9 11.2
28 in. 46 5.62 6.75 11.75 32.75 28 31.5 40.25 20 3.12 3 0.5
mm 1168.4 142.7 171.5 298.5 831.9 711.2 800.1 1022.4 79.2 76.2 12.7
30 in. 48.5 5.88 7.18 12.25 35 30 33.75 42.75 20 3.12 3 0.5
mm 1231.9 149.4 182.4 311.2 889 762 857.3 1085.9 79.2 76.2 12.7
32 in. 51.75 6.25 7.62 13 37.25 32 36 45.5 20 3.38 3 ¼ 0.5
mm 1314.5 158.8 193.5 330.2 946.2 812.8 914.4 1155.7 85.9 82.6 12.7
34 in. 55 6.5 8.06 13.75 39.62 34 38 48.25 20 3.62 3 ½ 0.56
mm 1397 165.1 204.7 349.3 1006.3 863.6 965.2 1225.6 91.9 88.9 14.2
36 in. 57.5 6.75 8.44 14.25 41.88 36 40.25 50.75 20 3.62 3 ½ 0.56
mm 1460.5 171.5 214.4 362 1063.8 914.4 1022.4 1289.1 91.9 88.9 14.2
38 in. 57.5 7.5 8.5 13.88 42.25 38 43.25 50.75 20 3.62 3 ½ 0.75
mm 1460.5 190.5 215.9 352.6 1073.2 965.2 1098.6 1289.1 91.9 88.9 19.1
40 in. 59.5 7.75 8.81 1431 44.38 40 45.75 52.75 24 3.62 3 ½ 0.81
mm 1511.3 196.9 223.8 363 5 1127.3 1016 1162.1 1339.9 91.9 88.9 20.6
42 in. 61.5 8.12 9.12 14.62 46.31 42 47.75 54.75 24 3.62 3 ½ 0.81
mm 1562.1 206.2 231.6 371.3 1176.3 1066.8 1212.9 1390.7 91.9 88.9 20.6
44 in. 64.88 8.44 9.56 15.38 48.62 44 50 57.62 24 3.88 3 ¼ 0.88
mm 1648 214.4 242.8 390.7 1234.9 1117.6 1270 1463.5 98.6 95.3 22.4
46 in. 68.25 8.88 10.86 16.18 50.88 46 52.5 60.5 24 4.12 4 0.88
mm 1733.6 225.6 275.8 411 1292.4 1168.4 1333.5 1536.7 104.6 101.6 22.4
48 in. 70.25 9.19 10.38 16.5 52.88 48 54.5 62.5 24 4.12 4 0.94
mm 1784.4 233.4 263.7 419.1 1343.2 1219.2 1384.3 1587.5 104.6 101.6 23.9

(1) Bore diameter to be specified by the purchaser.