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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.
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 |
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 |