Flange - Blind, ANSI Class 900, B16.47 Series A (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 RaisedFace B | Thickness
of Flange
| Number
of Bolt Holes | Diameter
of Bolt Holes | Bolt
Circle Diameter
| Approx.
Weight (lb) |
---|---|---|---|---|---|---|---|
26 | 42 3/4 | 29 1/2 | 3 5/16 | 20 | 2 7/8 | 37 1/2 | 2570 |
28 | 46 | 31 1/2 | 6 3/4 | 20 | 3 1/8 | 40 1/4 | 3180 |
30 | 48 1/2 | 33 3/4 | 7 3/16 | 20 | 3 1/8 | 42 3/4 | 3760 |
32 | 51 3/4 | 36 | 7 5/8 | 20 | 3 3/8 | 45 1/2 | 4540 |
34 | 55 | 38 | 8 1/16 | 20 | 3 5/8 | 48 1/4 | 5430 |
36 | 57 1/2 | 40 1/4 | 8 7/16 | 20 | 3 5/8 | 50 3/4 | 6210 |
38 | 57 1/2 | 43 1/4 | 8 1/2 | 20 | 3 5/8 | 50 3/4 | 6260 |
40 | 59 1/2 | 45 3/4 | 8 13/16 | 24 | 3 5/8 | 52 3/4 | 6940 |
42 | 61 1/2 | 47 3/ 4 | 9 1/8 | 24 | 3 5/8 | 54 3/4 | 7680 |
44 | 64 7/8 | 50 | 9 9/16 | 24 | 3 7/8 | 57 5/8 | 8950 |
46 | 68 1/4 | 52 1/2 | 10 1/16 | 24 | 4 1/8 | 60 1/2 | 10,430 |
48 | 70 1/4 | 54 1/2 | 10 3/8 | 24 | 4 1/8 | 62 1/2 | 11,400 |