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ANSI/ASME B16.1-1989 Class 250
|
| Pipe Size |
Outside Diameter |
Inside Diameter |
Number of Bolt Holes |
Bolt Hole Diameter |
Bolt Circle |
|
| 1" |
4-7/8 |
... |
4 |
3/4 |
3-1/2 |
| 1-1/4" |
5-1/4 |
... |
4 |
3/4 |
3-7/8 |
| 1-1/2" |
6-1/8 |
... |
4 |
7/8 |
4-1/2 |
| 2" |
6-1/2 |
... |
8 |
3/4 |
5 |
| 2-1/2" |
7-1/2 |
... |
8 |
7/8 |
5-7/8 |
|
| 3" |
8-1/4 |
... |
8 |
7/8 |
6-5/8 |
| 3-1/2" |
9 |
... |
8 |
7/8 |
7-1/4 |
| 4" |
10 |
... |
8 |
7/8 |
7-7/8 |
| 5" |
11 |
... |
8 |
7/8 |
9-1/4 |
| 6" |
12-1/2 |
... |
12 |
7/8 |
10-5/8 |
|
| 8" |
15 |
... |
12 |
1 |
13 |
| 10" |
17-1/2 |
... |
16 |
1-1/8 |
15-1/4 |
| 12" |
20-1/2 |
... |
16 |
1-1/4 |
17-3/4 |
| 14" |
23 |
... |
20 |
1-1/4 |
20-1/4 |
| 16" |
25-1/2 |
... |
20 |
1-3/8 |
22-1/2 |
|
| 18" |
28 |
... |
24 |
1-3/8 |
24-3/4 |
| 20" |
30-1/2 |
... |
24 |
1-3/8 |
27 |
| 24" |
36 |
... |
24 |
1-5/8 |
32 |
| 30" |
43 |
... |
28 |
2 |
39-1/4 |
| 36" |
50 |
... |
32 |
2-1/4 |
46 |
|
| 42" |
57 |
... |
36 |
2-1/4 |
52-3/4 |
| 48" |
65 |
... |
40 |
2-1/4 |
60-3/4 |
|
Notes:
This table is intended for estimating purposes only. Applications
vary, confirm all dimensions with your engineering department
prior to ordering. Refer to the ASME B16.1-1989 standard for
complete engineering and applications information. All dimensions
are in inches unless otherwise noted. Inside diameter and thickness
dimensions are application specific. |
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