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The AWWA C207 Class E steel ring flanges (S/O plate flanges) are available in sizes 4″ through 48″. These flanges have the same OD and drilling pattern as Class 250 cast-iron flanges (ASME B16.1). In sizes 24″ and smaller, they also match ASME B16.5 Class 300 drilling for steel flanges.
NPS | A | B | T |
---|---|---|---|
4" | 10.00 | 4.57 | 1.13 |
5" | 11.00 | 5.66 | 1.21 |
6" | 12.50 | 6.73 | 1.31 |
8" | 15.00 | 8.73 | 1.31 |
10" | 17.50 | 10.88 | 1.50 |
12" | 20.50 | 12.88 | 1.63 |
14" | 23.00 | 14.19 | 1.94 |
16" | 25.50 | 16.19 | 2.14 |
18" | 28.00 | 18.19 | 2.25 |
20" | 30.50 | 20.19 | 2.33 |
22" | 33.00 | 22.19 | 2.50 |
24" | 36.00 | 24.19 | 2.69 |
26" | 38.25 | 26.19 | 3.00 |
28" | 40.75 | 28.19 | 3.13 |
30" | 43.00 | 30.19 | 3.15 |
32" | 45.25 | 32.19 | 3.25 |
34" | 47.50 | 34.19 | 3.38 |
36" | 50.00 | 36.19 | 3.46 |
38" | 52.25 | 38.19 | 3.50 |
40" | 54.25 | 40.19 | 3.63 |
42" | 57.00 | 42.19 | 3.81 |
44" | 59.25 | 44.19 | 4.00 |
46" | 61.50 | 46.19 | 4.13 |
48" | 65.00 | 48.19 | 4.50 |
NPS | n | C | d |
---|---|---|---|
4" | 8 | 7.88 | 0.750 |
5" | 8 | 9.25 | 0.750 |
6" | 12 | 10.62 | 0.750 |
8" | 12 | 13.00 | 0.875 |
10" | 16 | 15.25 | 1.000 |
12" | 16 | 17.75 | 1.125 |
14" | 20 | 20.25 | 1.125 |
16" | 20 | 22.50 | 1.250 |
18" | 24 | 24.75 | 1.250 |
20" | 24 | 27.00 | 1.250 |
22" | 24 | 29.25 | 1.250 |
24" | 24 | 32.00 | 1.500 |
26" | 28 | 34.50 | 1.750 |
28" | 28 | 37.00 | 1.750 |
30" | 28 | 39.25 | 1.750 |
32" | 28 | 41.50 | 1.750 |
34" | 28 | 43.50 | 1.750 |
36" | 32 | 46.00 | 2.000 |
38" | 32 | 48.00 | 2.000 |
40" | 36 | 50.25 | 2.000 |
42" | 36 | 52.75 | 2.000 |
44" | 36 | 55.00 | 2.000 |
46" | 40 | 57.25 | 2.000 |
48" | 40 | 60.75 | 2.000 |
NPS | Mass |
---|---|
4" | 8.33 |
5" | 10.13 |
6" | 13.47 |
8" | 18.10 |
10" | 25.40 |
12" | 37.77 |
14" | 58.09 |
16" | 75.74 |
18" | 92.69 |
20" | 112.34 |
22" | 139.23 |
24" | 175.97 |
26" | 205.71 |
28" | 242.69 |
30" | 267.05 |
32" | 299.77 |
34" | 337.68 |
36" | 365.58 |
38" | 398.55 |
40" | 427.36 |
42" | 502.89 |
44" | 563.86 |
46" | 612.59 |
48" | 782.95 |
AWWA C207 Pipe Flange Dimensions & Masses |
|
---|---|
Ring Flange | Class B | Class D Class E | Class F |
Blind Flange | Class B | Class D Class E | Class F |
Hub Flange | Class D | Class E |