Flange - Blind, ANSI Class 150, B16.47 Series B, RF (in)
- Dimensions per ASME B16.47 - Large Diameter Steel Flanges: NPS 26 Through NPS 60 Metric/Inch Standard
- Bolt circle diameters are 1/8 inch larger than bolt diameter.
Pipe Size
(NPS) | Outside Diameter of Flange
A | Diameter of Raised Face
B | Thickness of Flange
C | Number of Bolt Holes
| Diameter of Bolt Holes
| Bolt Circle Diameter
P | Approx Weight
(lb) |
---|---|---|---|---|---|---|---|
26 | 30 15/16 | 28 | 1 3/4 | 36 | 7/8 | 29 5/16 | 370 |
28 | 32 15/16 | 30 | 1 7/8 | 40 | 7/8 | 31 5/16 | 455 |
30 | 34 15/16 | 32 | 2 | 44 | 7/8 | 33 5/16 | 545 |
32 | 37 1/16 | 34 | 2 1/8 | 48 | 7/8 | 35 7/16 | 650 |
34 | 39 9/16 | 36 1/4 | 2 1/42 | 40 | 1 | 37 11/16 | 785 |
36 | 41 5/8 | 38 1/4 | 2 5/16 | 44 | 1 | 39 3/4 | 890 |
38 | 44 1/4 | 40 1/4 | 2 1/2 | 40 | 1 1/8 | 42 1/8 | 1090 |
40 | 46 1/4 | 42 1/2 | 2 5/8 | 44 | 1 1/8 | 44 1/8 | 1250 |
42 | 48 1/4 | 44 1/2 | 2 11/16 | 48 | 1 1/8 | 46 1/8 | 1395 |
44 | 50 1/4 | 46 1/2 | 2 13/16 | 52 | 1 1/8 | 48 1/8 | 1580 |
46 | 52 13/16 | 48 5/8 | 2 15/16 | 40 | 1 1/4 | 50 9/16 | 1825 |
48 | 54 13/16 | 50 3/4 | 3 1/16 | 44 | 1 1/4 | 52 9/16 | 2045 |
50 | 56 13/16 | 52 3/4 | 3 3/16 | 48 | 1 1/4 | 54 9/16 | 2285 |
52 | 58 13/16 | 54 3/4 | 3 5/16 | 52 | 1 1/4 | 56 9/16 | 2550 |
54 | 61 | 56 3/4 | 3 7/16 | 56 | 1 1/4 | 58 3/4 | 2850 |
56 | 63 | 58 3/4 | 3 9/16 | 60 | 1 1/4 | 60 3/4 | 3145 |
58 | 65 15/16 | 60 3/4 | 3 11/16 | 48 | 1 3/8 | 63 7/16 | 3560 |
60 | 67 15/16 | 63 | 3 13/16 | 52 | 1 3/8 | 65 7/16 | 3915 |