Betts aluminum weld sump flanges are designed for use on cargo tanks with bolt-hole patterns in accordance with TTMA recommended practices. Flange performance is dependent on proper weld procedures with an achievable working pressure of 50 psi [3.4 bar].
Specifications
| Size | Thickness (T) | O.D. | I.D. | B.C. | of Holes | Hole Dia. |
| 3 in. | .56 in.(14.2 mm) | 7.25 in.(184 mm.) | 3.56 in.(90.5 mm.) | 6.25 in.(158.8 mm.) | 6 | .56 in.(14.2 mm.) |
| 4 in. | .56 in.(14.2 mm) | 8.25 in. (209.6 mm.) | 4.56 in. (115.8 mm.) | 7.25 in. (184.1 mm.) | 8 | .56 in. (14.2 mm.) |










