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Full Face Flange Thickness
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Flanges are back faced or spot
faced to accommodate ANSI Type B plain washers, regular series.
Larger sizes are designed to
suit specific applications.
Flange thicknesses, T, are
minimums at design pressures.
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Dia |
25 psi |
50 psi |
75 psi |
100 psi
|
125 psi |
150 psi |
|
1½ |
½ |
½ |
½ |
9/16 |
5/8 |
11/16 |
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2 |
½ |
½ |
½ |
9/16 |
5/8 |
11/16 |
|
2½ |
½ |
½ |
9/16 |
5/8 |
11/16 |
3/4 |
|
3 |
½ |
½ |
5/8 |
11/16 |
3/4 |
13/16 |
|
4 |
½ |
9/16 |
11/16 |
13/16 |
7/8 |
15/16 |
|
6 |
½ |
5/8 |
3/4 |
7/8 |
1 |
1 1/16 |
|
8 |
9/16 |
3/4 |
7/8 |
1 |
1 1/8 |
1¼ |
|
10 |
11/16 |
7/8 |
1 1/16 |
1 3/16 |
1 5/16 |
1 7/16 |
|
12 |
3/4 |
1 |
1¼ |
1 7/16 |
1 5/8 |
1 3/4 |
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14 |
13/16 |
1 1/16 |
1 15/16 |
1½ |
1 3/4 |
1
7/8 |
|
16 |
7/8 |
1 3/16 |
1 7/16 |
1 5/8 |
1
7/8 |
2 1/16 |
|
18 |
15/16 |
1¼ |
1½ |
1 3/4 |
2 |
2¼ |
|
20 |
1 |
1 5/16 |
1 5/8 |
1
7/8 |
2
1/8 |
2 7/16 |
|
24 |
1 1/8 |
1½ |
1
7/8 |
2
1/8 |
2½ |
2 13/16 |
|
26 |
1¼ |
1 5/8 |
2 |
2¼ |
2 11/16 |
3 |
|
28 |
1¼ |
1 3/4 |
2
1/8 |
2
3/8 |
1
7/8 |
3 3/16 |
|
30 |
1 3/8 |
1
7/8 |
2¼ |
2½ |
3 1/16 |
3 3/8 |
|
36 |
1 3/4 |
2 3/16 |
2 9/16 |
2 3/16 |
3 5/8 |
4 |
|
42 |
2 |
2½ |
2
7/8 |
3 1/8
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48
|
2 3/8 |
2 3/4 |
3¼ |
3 7/16
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