Understanding Tri-Clamp Sizes and Gaskets
Ferrule sizing
Tri-clamp fittings are sized by tube OD, not nominal bore. Match the ferrule flange, clamp and gasket to the same size and pressure.
| Tube OD | Typical clamp |
| 1" | 1" – 1½" clamp |
| 2" | 2" clamp |
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