SERIES B
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ASME B16.47 Class 75 Series B Welding Neck Flanges
SPECIFICATIONS
▪ All dimensions are in inches
▪ These flanges will be supplied with a 1/16" raised face
unless otherwise specified
unless otherwise specified
▪ Flat face option available
Nominal Pipe Size |
Outside Diameter |
Minimum Thickness |
Raised Face Diameter |
Length Thru Hub |
Hub Diameter |
Minimum Fillet Radius |
Top of Hub |
Bore | Approximate Weight |
Bolt Circle |
Number of Holes |
Diameter of Holes |
(O) | (T) | (R) | (Y) | (X) | (r) | (A) | (B) | (lbs) | (C) | |||
26 | 30.00 | 1.31 | 27.75 | 2.31 | 26.62 | 0.31 | 26.06 | Specified by purchaser |
80 | 28.50 | 36 | 0.75 |
28 | 32.00 | 1.31 | 29.75 | 2.44 | 28.62 | 0.31 | 28.06 | Specified by purchaser |
85 | 30.50 | 40 | 0.75 |
30 | 34.00 | 1.31 | 31.75 | 2.56 | 30.62 | 0.31 | 30.06 | Specified by purchaser |
90 | 32.50 | 44 | 0.75 |
32 | 36.00 | 1.38 | 33.75 | 2.75 | 32.62 | 0.31 | 32.06 | Specified by purchaser |
105 | 34.50 | 48 | 0.75 |
34 | 38.00 | 1.38 | 35.75 | 2.88 | 34.62 | 0.31 | 34.06 | Specified by purchaser |
110 | 36.50 | 52 | 0.75 |
36 | 40.69 | 1.44 | 38.00 | 3.38 | 36.81 | 0.38 | 36.06 | Specified by purchaser |
145 | 39.06 | 40 | 0.88 |
38 | 42.69 | 1.50 | 40.00 | 3.50 | 38.81 | 0.38 | 38.06 | Specified by purchaser |
160 | 41.06 | 40 | 0.88 |
40 | 44.69 | 1.50 | 42.00 | 3.62 | 40.81 | 0.38 | 40.06 | Specified by purchaser |
170 | 43.06 | 44 | 0.88 |
42 | 46.69 | 1.56 | 44.00 | 3.75 | 42.81 | 0.38 | 42.06 | Specified by purchaser |
185 | 45.06 | 48 | 0.88 |
44 | 49.25 | 1.69 | 46.25 | 4.12 | 44.88 | 0.38 | 44.06 | Specified by purchaser |
230 | 47.38 | 36 | 1.00 |
46 | 51.25 | 1.75 | 48.25 | 4.25 | 46.88 | 0.38 | 46.06 | Specified by purchaser |
245 | 49.38 | 40 | 1.00 |
48 | 53.25 | 1.81 | 50.25 | 4.38 | 48.88 | 0.38 | 48.06 | Specified by purchaser |
270 | 51.38 | 44 | 1.00 |
50 | 55.25 | 1.88 | 52.25 | 4.56 | 50.94 | 0.38 | 50.06 | Specified by purchaser |
290 | 53.38 | 44 | 1.00 |
52 | 57.38 | 1.88 | 54.25 | 4.75 | 52.94 | 0.38 | 52.06 | Specified by purchaser |
310 | 55.50 | 48 | 1.00 |
54 | 59.38 | 1.94 | 56.25 | 4.94 | 55.00 | 0.38 | 54.06 | Specified by purchaser |
340 | 57.50 | 48 | 1.00 |
56 | 62.00 | 2.00 | 58.50 | 5.31 | 57.12 | 0.44 | 56.06 | Specified by purchaser |
400 | 59.88 | 40 | 1.12 |
58 | 64.00 | 2.06 | 60.50 | 5.44 | 59.12 | 0.44 | 58.06 | Specified by purchaser |
430 | 61.88 | 44 | 1.12 |
60 | 66.00 | 2.19 | 62.50 | 5.69 | 61.12 | 0.44 | 60.06 | Specified by purchaser |
475 | 63.88 | 44 | 1.12 |