ASME B16.47 Class 150 Series A Welding Neck Flanges

a
Nominal Pipe Size Outside Diameter (O) Minimum Thickness (T) Raised Face Diameter (R) Length Thru Hub (Y) Hub Diameter (X) Minimum Fillet Radius (r) Top of Hub (A) Bore (B) Approximate Weight Bolt Circle (C) Number of Holes Diameter of Holes
26 34.25 mm 2.69 mm 29.50 mm 4.75 mm 26.62 mm 0.38 mm 26.00 mm Specified by purchaser 300 lb 31.75 mm 24 1.38 mm
28 36.50 mm 2.81 mm 31.50 mm 4.94 mm 28.62 mm 0.44 mm 28.00 mm Specified by purchaser 345 lb 34.00 mm 28 1.38 mm
30 38.75 mm 2.94 mm 33.75 mm 5.38 mm 30.75 mm 0.44 mm 30.00 mm Specified by purchaser 400 lb 36.00 mm 28 1.38 mm
32 41.75 mm 3.19 mm 36.00 mm 5.69 mm 32.75 mm 0.44 mm 32.00 mm Specified by purchaser 505 lb 38.50 mm 28 1.62 mm
34 43.75 mm 3.25 mm 38.00 mm 5.88 mm 34.75 mm 0.50 mm 34.00 mm Specified by purchaser 540 lb 40.50 mm 32 1.62 mm
36 46.00 mm 3.56 mm 40.25 mm 6.19 mm 36.75 mm 0.50 mm 36.00 mm Specified by purchaser 640 lb 42.75 mm 32 1.62 mm
38 48.75 mm 3.44 mm 42.25 mm 6.19 mm 39.00 mm 0.50 mm 38.00 mm Specified by purchaser 720 lb 45.25 mm 32 1.62 mm
40 50.75 mm 3.56 mm 44.25 mm 6.44 mm 41.00 mm 0.50 mm 40.00 mm Specified by purchaser 775 lb 47.25 mm 36 1.62 mm
42 53.00 mm 3.81 mm 47.00 mm 6.75 mm 43.00 mm 0.50 mm 42.00 mm Specified by purchaser 890 lb 49.50 mm 36 1.62 mm
44 55.25 mm 4.00 mm 49.00 mm 7.00 mm 45.00 mm 0.50 mm 44.00 mm Specified by purchaser 990 lb 51.75 mm 40 1.62 mm
46 57.25 mm 4.06 mm 51.00 mm 7.31 mm 47.12 mm 0.50 mm 46.00 mm Specified by purchaser 1060 lb 53.75 mm 40 1.62 mm
48 59.50 mm 4.25 mm 53.50 mm 7.56 mm 49.12 mm 0.50 mm 48.00 mm Specified by purchaser 1185 lb 56.00 mm 44 1.62 mm
50 61.75 mm 4.38 mm 55.50 mm 8.00 mm 51.25 mm 0.50 mm 50.00 mm Specified by purchaser 1270 lb 58.25 mm 44 1.88 mm
52 64.00 mm 4.56 mm 57.50 mm 8.25 mm 53.25 mm 0.50 mm 52.00 mm Specified by purchaser 1410 lb 60.50 mm 44 1.88 mm
54 66.25 mm 4.75 mm 59.50 mm 8.50 mm 55.25 mm 0.50 mm 54.00 mm Specified by purchaser 1585 lb 62.75 mm 44 1.88 mm
56 68.75 mm 4.88 mm 62.00 mm 9.00 mm 57.38 mm 0.50 mm 56.00 mm Specified by purchaser 1760 lb 65.00 mm 48 1.88 mm
58 71.00 mm 5.06 mm 64.00 mm 9.25 mm 59.38 mm 0.50 mm 58.00 mm Specified by purchaser 1915 lb 67.25 mm 48 1.88 mm
60 73.00 mm 5.19 mm 66.00 mm 9.44 mm 61.38 mm 0.50 mm 60.00 mm Specified by purchaser 2045 lb 69.25 mm 52 1.88 mm