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» Flange & Fitting » AWWA C207 Class F Ring Flange
AWWA C207 Class F Ring Flange
July 7, 2020
Technical Drawing
A typical drawing for AWWA C207 Class F steel ring flanges. The working pressure limit at water service temperature is 275 psi. The maximum pressure (test or transient) allowed can be up to 450 psi.
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.
Dimensions & Masses
| 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 |
*The purchaser shall specify the ID of the flange, dimension B, for NPS 26″ and larger. The diameter of the flange bore shall not exceed the pipe OD by more than 0.25″.
| 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 |
*Bolt holes shall be drilled 1/8″ [3.2 mm] larger in diameter than the nominal diameter of the bolt.
| 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 |
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