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» Flange & Fitting » AWWA C207 Class F Blind Flange
AWWA C207 Class F Blind Flange
July 8, 2020
Technical Drawing
The drawing of AWWA C207 Class F blind flange, with flat face (FF), available from 4″ through 48″.
The working pressure limit at water service temperature for AWWA C207 Class F blind flange is 300 psi and the maximum pressure (test or transient) allowed can be up to 450 psi. These flanges have the same outside diameter and drilling pattern as ASME B16.1 Class 250 cast-iron pipe and flanged fittings and ASME B16.5 Class 300 for steel flanges.
Dimensions & Masses
| NPS | A | T | MASS |
|---|---|---|---|
| 4" | 10.00 | 1.130 | 10.72 |
| 5" | 11.00 | 1.210 | 14.04 |
| 6" | 12.50 | 1.310 | 19.46 |
| 8" | 15.00 | 1.310 | 28.19 |
| 10" | 17.50 | 1.500 | 43.34 |
| 12" | 20.50 | 1.630 | 65.09 |
| 14" | 23.00 | 1.940 | 97.56 |
| 16" | 25.50 | 2.140 | 132.41 |
| 18" | 28.00 | 2.250 | 167.91 |
| 20" | 30.50 | 2.330 | 208.30 |
| 22" | 33.00 | 2.500 | 263.60 |
| 24" | 36.00 | 2.690 | 335.00 |
| 26" | 38.25 | 3.000 | 413.61 |
| 28" | 40.75 | 3.130 | 493.99 |
| 30" | 43.00 | 3.166 | 559.95 |
| 32" | 45.25 | 3.332 | 656.15 |
| 34" | 47.50 | 3.475 | 757.58 |
| 36" | 50.00 | 3.671 | 873.63 |
| 38" | 52.25 | 3.815 | 996.58 |
| 40" | 54.25 | 3.982 | 1118.63 |
| 42" | 57.00 | 4.171 | 1300.64 |
| 44" | 59.25 | 4.338 | 1467.36 |
| 46" | 61.50 | 4.505 | 1639.28 |
| 48" | 65.00 | 4.781 | 1953.58 |
*For AWWA C207 Class E blind, the minimum thickness is based on allowable stress of 16000 psi and allowable bolt stress of 25000 psi.
| 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 |
| 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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