Flanges WN - Class 900 RF ASME 16.47 Series A

Expired

All dimensions are in "mm" unless noted otherwise.

Dimensions of Class 900 RF Weld Neck Flanges Series A as per ASME B16.47.

Weld Neck Flange

Nominal
Pipe Size		 OD of
Flange
(O)		 Thickness
of Flange
(C)		 Length
thru Hub
(V)		 Dia of
Hub at base
(X)		 Dia of
Hub at end
(A)		 Dia of
Raised Face
(R)		 Dia of
Bolt Circle		 No of
Bolt
Holes		 Dia of
Bolt
Holes		 Dia of
Bolt		 Fillet
Radius
(r1)		 Approx
Weight
(kg)
26 1085.9 139.7 258.8 774.7 660.4 749.3 952.5 20 73.2 69.9 11.2 686
28 1168.4 142.7 298.5 831.9 711.2 800.1 1022.4 20 79.2 76.2 12.7 808
30 1231.9 149.4 311.2 889 762 857.3 1085.9 20 79.2 76.2 12.7 933
32 1314.5 158.8 330.2 946.2 812.8 914.4 1155.7 20 85.9 82.6 12.7 1116
34 1397 165.1 349.3 1006.3 863.6 965.2 1225.6 20 91.9 88.9 14.2 1310
36 1460.5 171.5 362 1063.8 914.4 1022.4 1289.1 20 91.9 88.9 14.2 1479
38 1460.5 190.5 352.6 1073.2 965.2 1098.6 1289.1 20 91.9 88.9 19.1 1445
40 1511.3 196.9 363.5 1127.3 1016 1162.1 1339.9 24 91.9 88.9 20.6 1529
42 1562.1 206.2 371.3 1176.3 1066.8 1212.9 1390.7 24 91.9 88.9 20.6 1666
44 1648 214.4 390.7 1234.9 1117.6 1270 1463.5 24 98.6 95.3 22.4 1939
46 1733.6 225.6 411 1292.4 1168.4 1333.5 1536.7 24 104.6 101.6 22.4 2265
48 1784.4 233.4 419.1 1343.2 1219.2 1384.3 1587.5 24 104.6 101.6 23.9 2433
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