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AWWA C207 Class E Steel Hub Flange |
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Dimensions & Approx Masses of Class E Steel Hub Flange (275 psi*) |
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Nom Size |
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Drilling |
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OD |
Thickness |
Overall Thickness |
Dia at Base |
Bore |
Bolt Circle |
Hole Dia |
No. Holes |
Weight |
A |
T |
L |
E |
B |
C |
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4 |
9.00 |
0.938 |
1.312 |
5.312 |
4.57 |
7.50 |
0.750 |
8 |
13 |
5 |
10.00 |
0.938 |
1.438 |
6.438 |
5.66 |
8.50 |
0.875 |
8 |
14 |
6 |
11.00 |
1.000 |
1.562 |
7.562 |
6.72 |
9.50 |
0.875 |
8 |
17 |
8 |
13.50 |
1.125 |
1.750 |
9.688 |
8.72 |
11.75 |
0.875 |
8 |
28 |
10 |
16.00 |
1.188 |
1.938 |
12.000 |
10.88 |
14.25 |
1.000 |
12 |
37 |
12 |
19.00 |
1.250 |
2.188 |
14.375 |
12.88 |
17.00 |
1.000 |
12 |
59 |
14 |
21.00 |
1.375 |
2.250 |
15.750 |
14.19 |
18.75 |
1.125 |
12 |
78 |
16 |
23.50 |
1.438 |
2.500 |
18.000 |
16.19 |
21.25 |
1.125 |
16 |
101 |
18 |
25.00 |
1.562 |
2.688 |
19.875 |
18.19 |
22.75 |
1.250 |
16 |
110 |
20 |
27.50 |
1.688 |
2.875 |
22.000 |
20.19 |
25.00 |
1.250 |
20 |
139 |
22 |
29.50 |
1.812 |
3.125 |
24.000 |
22.19 |
27.25 |
1.375 |
20 |
162 |
24 |
32.00 |
1.875 |
3.250 |
26.125 |
24.19 |
29.50 |
1.375 |
20 |
197 |
26 |
34.25 |
2.000 |
3.375 |
28.500 |
26.19 |
31.75 |
1.375 |
24 |
235 |
28 |
36.50 |
2.062 |
3.438 |
30.750 |
28.19 |
34.00 |
1.375 |
28 |
269 |
30 |
38.75 |
2.125 |
3.500 |
32.750 |
30.19 |
36.00 |
1.375 |
28 |
303 |
32 |
41.75 |
2.250 |
3.625 |
35.000 |
32.19 |
38.50 |
1.625 |
28 |
375 |
34 |
43.75 |
2.312 |
3.688 |
37.000 |
34.19 |
40.50 |
1.625 |
32 |
401 |
36 |
46.00 |
2.375 |
3.750 |
39.250 |
36.19 |
42.75 |
1.625 |
32 |
452 |
38 |
48.75 |
2.375 |
3.750 |
41.750 |
38.19 |
45.25 |
1.625 |
32 |
528 |
40 |
50.75 |
2.500 |
3.875 |
43.750 |
40.19 |
47.25 |
1.625 |
36 |
573 |
42 |
53.00 |
2.625 |
4.000 |
46.000 |
42.19 |
49.50 |
1.625 |
36 |
648 |
44 |
55.25 |
2.625 |
4.000 |
48.000 |
44.19 |
51.75 |
1.625 |
40 |
688 |
46 |
57.25 |
2.688 |
4.062 |
50.000 |
46.19 |
53.75 |
1.625 |
40 |
733 |
48 |
59.50 |
2.750 |
4.125 |
52.250 |
48.19 |
56.00 |
1.625 |
44 |
799 |
50 |
61.75 |
2.750 |
4.125 |
54.250 |
50.19 |
58.25 |
1.875 |
44 |
827 |
52 |
64.00 |
2.875 |
4.250 |
56.500 |
52.19 |
60.50 |
1.875 |
44 |
922 |
54 |
66.25 |
3.000 |
4.375 |
58.750 |
54.19 |
62.75 |
1.875 |
44 |
1024 |
60 |
73.00 |
3.125 |
4.500 |
65.250 |
60.19 |
69.25 |
1.875 |
52 |
1253 |
66 |
80.00 |
3.375 |
4.875 |
71.500 |
66.19 |
76.00 |
1.875 |
52 |
1623 |
72 |
86.50 |
3.500 |
5.000 |
78.500 |
72.19 |
82.50 |
1.875 |
60 |
1922 |
78 |
93.00 |
3.875 |
5.375 |
84.500 |
78.19 |
89.00 |
2.125 |
64 |
2279 |
84 |
99.75 |
3.875 |
5.375 |
90.500 |
84.19 |
95.50 |
2.125 |
64 |
2586 |
90 |
106.50 |
4.250 |
5.750 |
96.750 |
90.19 |
102.00 |
2.438 |
68 |
3061 |
96 |
113.25 |
4.250 |
5.750 |
102.750 |
96.19 |
108.50 |
2.438 |
68 |
3432 |
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| Dimensions are in inches. Weights are in pounds. |
| Note: Hub flanges are to be used on pipe that has an OD equal to the nominal pipe size in the first column. *Pressure rating at atmospheric temperature is 275 psi. These flanges have the same OD and drilling as ANSI/ASME B16.1 class 125 cast-iron flanges. In sizes 24in. and smaller, they also match ANSI/ASME B16.5 class 150 standard for steel flanges. The thickness of a class 150 flange from which the raised face has been removed shall be no less than dimension T minus 0.06 in. |
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