When gas or liquid being conveyed in a corrugated metal hose exceeds certain limits, resonant vibration can occur. Resonance may cause very rapid failure of the assembly. In those applications where product velocities exceed the limits shown in the graph below, a revision of the assembly design might include:

  • Addition of an interlocked metal hose liner.
  • An increase in the corrugated hose I.D.
  • A combination of the above.
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    Installation
    Configuration
    Maximum Product Velocity (Feet/Second)
    Unbraided Braided
    Dry Gas Liquid Dry Gas Liquid
    Straight Run 100 50 150 75
    45 Degree Bend 75 40 115 60
    90 Degree Bend 50 25 75 40
    180 Degree Bend 25 12 38 19