ASME B16.47 Class 75 Series B Welding Neck Flanges
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 | 30.00 mm | 1.31 mm | 27.75 mm | 2.31 mm | 26.62 mm | 0.31 mm | 26.06 mm | Specified by purchaser | 80 lb | 28.50 mm | 36 | 0.75 mm |
28 | 32.00 mm | 1.31 mm | 29.75 mm | 2.44 mm | 28.62 mm | 0.31 mm | 28.06 mm | Specified by purchaser | 85 lb | 30.50 mm | 40 | 0.75 mm |
30 | 34.00 mm | 1.31 mm | 31.75 mm | 2.56 mm | 30.62 mm | 0.31 mm | 30.06 mm | Specified by purchaser | 90 lb | 32.50 mm | 44 | 0.75 mm |
32 | 36.00 mm | 1.38 mm | 33.75 mm | 2.75 mm | 32.62 mm | 0.31 mm | 32.06 mm | Specified by purchaser | 105 lb | 34.50 mm | 48 | 0.75 mm |
34 | 38.00 mm | 1.38 mm | 35.75 mm | 2.88 mm | 34.62 mm | 0.31 mm | 34.06 mm | Specified by purchaser | 110 lb | 36.50 mm | 52 | 0.75 mm |
36 | 40.69 mm | 1.44 mm | 38.00 mm | 3.38 mm | 36.81 mm | 0.38 mm | 36.06 mm | Specified by purchaser | 145 lb | 39.06 mm | 40 | 0.88 mm |
38 | 42.69 mm | 1.50 mm | 40.00 mm | 3.50 mm | 38.81 mm | 0.38 mm | 38.06 mm | Specified by purchaser | 160 lb | 41.06 mm | 40 | 0.88 mm |
40 | 44.69 mm | 1.50 mm | 42.00 mm | 3.62 mm | 40.81 mm | 0.38 mm | 40.06 mm | Specified by purchaser | 170 lb | 43.06 mm | 44 | 0.88 mm |
42 | 46.69 mm | 1.56 mm | 44.00 mm | 3.75 mm | 42.81 mm | 0.38 mm | 42.06 mm | Specified by purchaser | 185 lb | 45.06 mm | 48 | 0.88 mm |
44 | 49.25 mm | 1.69 mm | 46.25 mm | 4.12 mm | 44.88 mm | 0.38 mm | 44.06 mm | Specified by purchaser | 230 lb | 47.38 mm | 36 | 1.00 mm |
46 | 51.25 mm | 1.75 mm | 48.25 mm | 4.25 mm | 46.88 mm | 0.38 mm | 46.06 mm | Specified by purchaser | 245 lb | 49.38 mm | 40 | 1.00 mm |
48 | 53.25 mm | 1.81 mm | 50.25 mm | 4.38 mm | 48.88 mm | 0.38 mm | 48.06 mm | Specified by purchaser | 270 lb | 51.38 mm | 44 | 1.00 mm |
50 | 55.25 mm | 1.88 mm | 52.25 mm | 4.56 mm | 50.94 mm | 0.38 mm | 50.06 mm | Specified by purchaser | 290 lb | 53.38 mm | 44 | 1.00 mm |
52 | 57.38 mm | 1.88 mm | 54.25 mm | 4.75 mm | 52.94 mm | 0.38 mm | 52.06 mm | Specified by purchaser | 310 lb | 55.50 mm | 48 | 1.00 mm |
54 | 59.38 mm | 1.94 mm | 56.25 mm | 4.94 mm | 55.00 mm | 0.38 mm | 54.06 mm | Specified by purchaser | 340 lb | 57.50 mm | 48 | 1.00 mm |
56 | 62.00 mm | 2.00 mm | 58.50 mm | 5.31 mm | 57.12 mm | 0.44 mm | 56.06 mm | Specified by purchaser | 400 lb | 59.88 mm | 40 | 1.12 mm |
58 | 64.00 mm | 2.06 mm | 60.50 mm | 5.44 mm | 59.12 mm | 0.44 mm | 58.06 mm | Specified by purchaser | 430 lb | 61.88 mm | 44 | 1.12 mm |
60 | 66.00 mm | 2.19 mm | 62.50 mm | 5.69 mm | 61.12 mm | 0.44 mm | 60.06 mm | Specified by purchaser | 475 lb | 63.88 mm | 44 | 1.12 mm |