LARGE DIAMETER FLANGES SERIES A / MSS SP44 ASME B16.47 Class 600

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. 40 4.25 4.94 8.75 29.44 26 29.5 36 28 2 1 7/8 0.5
mm 1016 108 125.5 222.3 747.8 660.4 749.3 914.4 50.8 47.6 12.7
28 in. 42.25 4 38 5.19 9.25 31.62 28 31.5 38 28 2.12 2 0.5
mm 1073.2 111.3 131.8 235 803.1 711.2 800.1 965.2 53.8 50.8 12.7
30 in. 44.5 4.5 5.5 9.75 33.94 30 33.75 40.25 28 2.12 2 0.5
mm 1130.3 114.3 139.7 247.7 862.1 762 857.3 1022.4 53.8 50.8 12.7
32 in. 47 4 62 5.81 10.25 36.12 32 36 42.5 28 2.38 2 ¼ 0.5
mm 1193.8 117.3 147.6 260.4 917.4 812.8 914.4 1079.5 60.5 57.2 12.7
34 in. 49 4.75 6.06 10.62 38.31 34 38 44.5 28 2.38 2 ¼ 0.56
mm 1244.6 120.7 153.9 269.7 973.1 863.6 965.2 1130.3 60.5 57.2 14.2
36 in. 51.75 4.88 6.38 11.12 40.62 36 40.25 47 28 2.62 2 ½ 0.56
mm 1314.5 124 162.1 282.4 1031.7 914.4 1022.4 1193.8 66.5 63.5 14.2
38 in. 50 6 6.12 10 40.25 38 41.5 45.75 28 2.38 2 ¼ 0.56
mm 1270 152.4 155.4 254 1022.4 965.2 1054.1 1162.1 60.5 57.2 14.2
40 in. 52 6.25 6.38 10.38 42.25 40 43.75 47.75 32 2.38 2 ¼ 0.56
mm 1320.8 158.8 162.1 263.7 1073.2 1016 1111.3 1212.9 60.5 57.2 14.2
42 in. 55.25 6.62 6.75 11 44.38 42 46 50.5 28 2.62 2 ½ 0.56
mm 1403.4 168.1 171.5 279.4 1127.3 1066.8 1168.4 1282.7 66.5 63.5 14.2
44 in. 57.25 6.81 7 11.38 46 50 44 48.25 52.5 32 2.62 2 ½ 0.56
mm 1454.2 173 177.8 289.1 1181.1 1117.6 1225.6 1333.5 66.5 63.5 14.2
46 in. 59.5 7.06 7.31 11.81 48.62 46 50.25 54.75 32 2.62 2 ½ 0.56
mm 1511.3 179.3 185.7 300 1234.9 1168.4 1276.4 1390.7 66.5 63.5 14.2
48 in. 62.75 7.44 7.69 12.44 50 75 48 00 52 50 57.5 32 2.88 2 ¾ 0.56
mm 1593.9 189 195.3 316 1289 1 12192 1333 5 1460.5 73.2 69.9 14.2
50 in. 65.75 7.75 8 12.94 52.88 50 54.5 60 28 3.12 3 0.56
mm 1670.1 196.9 203.2 328.7 1343.2 1270 1384.3 1524 79.2 76.2 14.2
52 in. 67.75 8 00 8.25 13.25 54.88 52 56.5 62 32 3.12 3 0.56
mm 1720.9 203.2 209.6 336.6 1394 1320.8 1435.1 1574.8 79.2 76.2 14.2
54 in. 70 8.25 8.56 13.75 57 54 58.75 64.25 32 3.12 3 0.56
mm 1778 209.6 217.4 349.3 1447.8 1371.6 1492.3 1632 79.2 76.2 14.2
56 in. 73 8.56 8.88 14.25 59.12 56 60.75 66.75 32 3.38 3 ¼ 0.62
mm 1854.2 217.4 225.6 362 1501.6 1422.4 1543.1 1695.5 85.9 82.6 15.7
58 in. 75 8.75 9.12 14.56 61.12 58 63 68.75 32 3.38 3 ¼ 0.62
mm 1905 222.3 231.6 369.8 1552.4 1473.2 1600.2 1746.3 85.9 82.6 15.7
60 in. 78.5 9.19 9.56 15.31 63.38 60 65.25 71.75 28 3.62 3 ½ 0.69
mm 1993.9 233.4 242.8 388.9 1609.9 1524 1657.4 1822.5 91.9 88.9 17.5

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