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Find AWWA Class E Overbore Flanges at API International, Inc. These Overbore Flanges are AWWA Class #150, with AWWA Class #300 available upon request.
Downloads:
| API Part Number | I.D. | O.D. | THK | B.H.C. | B.H.C. Dia. | # of Bolts | Material |
| PFOB1400-1613-E | 16.13 | 21.00 | 1.875 | 18.75 | 1.125 | 12 | C207-13 |
| PFOB1600-1813-E | 18.13 | 23.50 | 2.000 | 21.25 | 1.130 | 16 | C207-13 |
| PFOB1800-1988-E | 19.88 | 25.00 | 2.130 | 22.75 | 1.250 | 16 | C207-13 |
| PFOB1800-2013-E | 20.13 | 25.00 | 2.130 | 22.75 | 1.250 | 16 | C207-13 |
| PFOB2000-2188-E | 21.88 | 27.50 | 2.380 | 25.00 | 1.250 | 20 | C207-13 |
| PFOB2400-2588-E-A105 | 25.88 | 32.00 | 1.250 | 29.50 | 1.375 | 20 | ASTM A105 |
| PFOB2400-2594-E-A105 | 25.94 | 32.00 | 2.630 | 29.50 | 1.380 | 20 | ASTM A105 |
| PFOB2400-2613-E-A105 | 26.13 | 32.00 | 2.630 | 29.50 | 1.380 | 20 | ASTM A105 |
| PFOB3000-3200-E-A105 | 32.00 | 38.75 | 2.880 | 36.00 | 1.380 | 28 | ASTM A105 |
| PFOB3000-3206-E-A105 | 32.06 | 38.75 | 2.880 | 36.00 | 1.375 | 28 | ASTM A105 |
| PFOB3600-3800-E-A105 | 38.00 | 46.00 | 3.130 | 42.75 | 1.630 | 32 | ASTM A105 |
| PFOB4200-4400-E-A105 | 44.00 | 53.00 | 3.380 | 49.50 | 1.630 | 36 | ASTM A105 |
| PFOB4800-5000-E-A105 | 50.00 | 59.50 | 3.500 | 56.00 | 1.630 | 44 | ASTM A105 |
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