| 摘要 |
<p>A fluid tight flare nut union is described. Flare nut unions are convenient to install in systems, such as refrigeration systems, and are generally reliably fluid tight. Leaks can occur over time, however, due to environmental stress conditions. Deformable ferrules (36), in combination with compression nut (40) assemblies, either singly, or redundantly, or in counter rotation redundant assembly, secure the flare nut (32) to the fluid transfer tubing (30) in a locking relationship which prevents the loosening of the flare nut-flare connection with subsequent fluid leakage due to these environmental stresses. Enclosing the complete assembly in water proof insulating material (44), further insures virtually leak proof operation of the improved flare nut union.</p> |
