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 |