MSS SP44-ASME/ANSI B16.47 150 Class Weld Neck Flange/Standards, Dimensions & Weight

Weld Neck Flange is flanges that designed to be joined to a piping system by butt welding. This kind of flange include lots of specification, weld neck flange is expensive because of its long neck and cost of people for contact WN flange with pipeline or fitting, but is preferred for high stress applications. The necks, or hubs, transmits stresses to the pipeline. The gradual transition of thickness from the base of the hub to the wall thickness at the butt weld provides important reinforcement of the Weld Neck flange. The bore of Weld-Neck flange matches bore of the pipeline, reducing turbulence and erosion.

  • Our company is a manufacturer of ASME/ANSI B16.5 150LB WN Flange, which is precisely engineered in accordance with international quality standards. For detailed dimensions of 150 Class Weld Neck flange, kindly check the table below. Also, you can download the datasheet.
150 Class Weld Neck Flange Drawing MSS SP44-ASME/ANSI B16.47
Product Weld Neck Flange
Pressure Rating 150 lb, 150 Class
Dimensional Specification MSS SP44 ASME/ANSI B16.47
Size 26″ to 60″
Surface Treatment Anti-rust Oil, Paint, Zinc, Hot Dipped Galvanized
Grades 304, 304L, 316L, 321, 347, 904L, Duplex, Carbon Steel, Nickel Alloys
Test Certificates As per EN 10204 3.1
Inspection Videos, Pictures, Inspection Report with Goods
Pipe Normal Diam. O.D.
OF
Flange
Thickness Length
Through
Hub
Diam. of
Hub
at Base
Hub
Diam.
Top
Raised
Face
Diam.
Diam. of
Bolt
Circle
No. of
Bolt
Holes
Diam. of
Bolt
Holes
Diam. of
Bolt
Fillet
Radius
Min.
inch O C Y X A R BD BN BH DB r1
26″ 870 68.3 120.7 676.1 660.4 749.3 806.5 24 35.1 1 1/4 9.7
28″ 927.1 71.4 125.5 726.9 711.2 800.1 863.6 28 35.1 1 1/4 11.2
30″ 984.3 74.7 136.7 781.1 762 857.3 914.4 28 35.1 1 1/4 11.2
32″ 1060.5 81 144.5 831.9 812.8 914.4 977.9 28 41.1 1 1/2 11.2
34″ 1111.3 82.6 149.4 882.7 863.6 965.2 1028.7 32 41.1 1 1/2 12.7
36″ 1168.4 90.4 157.2 933.5 914.4 1022.4 1085.9 32 41.1 1 1/2 12.7
38″ 1238.3 87.4 157.2 990.6 965.2 1073.2 1149.4 32 41.1 1 1/2 12.7
40″ 1289.1 90.4 163.6 1041.4 1016 1124 1200.2 36 41.1 1 1/2 12.7
42″ 1346.2 96.8 171.5 1092.2 1066.8 1193.8 1257.3 36 41.1 1 1/2 12.7
44″ 1403.4 101.6 177.8 1143 1117.6 1244.6 1314.5 40 41.1 1 1/2 12.7
46″ 1454.2 103.1 185.7 1196.8 1168.4 1295.4 1365.3 40 41.1 1 1/2 12.7
48″ 1511.3 108 192 1247.6 1219.2 1358.9 1422.4 44 41.1 1 1/2 12.7
50″ 1568.5 111.3 203.2 1301.8 1270 1409.7 1479.6 44 47.8 1 3/4 12.7
52″ 1625.6 115.8 209.6 1352.6 1320.8 1460.5 1536.7 44 47.8 1 3/4 12.7
54″ 1682.8 120.7 215.9 1403.4 1371.6 1511.3 1593.9 44 47.8 1 3/4 12.7
56″ 1746.3 124 228.6 1457.5 1422.4 1574.8 1651 48 47.8 1 3/4 12.7
58″ 1803.4 128.5 235 1508.3 1473.2 1625.6 1708.2 48 47.8 1 3/4 12.7
60″ 1854.2 131.8 239.8 1559.1 1524 1676.4 1759 52 47.8 1 3/4 12.7