Hy-Lok Tube Fittings

Brand: Hy-Lok USA, Inc

Two ferrule tube fittings are designed and manufactured to meet the rigorous specifications required of industrial applications.

Hy-Lok tube fittings are commonly used throughout the oil and gas, pulp & paper, petrochemical/chemical processing, research laboratories, aerospace and defense, chemical processing, power generation, cryogenic and semiconductor, shipbuilding and heavy industrial industries.

Available in numerous configurations and sizes, our tube fittings are made up of four parts consisting of a body, front ferrule, back ferrule, and nut.

Outstanding leak-tight connections are consistent as the two-ferrule design compensates for any tolerances in tube outer diameter, wall, thickness, and material hardness.


Material of Construction

  • Stainless Steel
  • Brass
  • Copper
  • Monel 400

Temperature Rating

  • -425° to 1,200° F (-245° to 649° C)

Tubing O.D.

  • 1/16” to 2” (2 to 50 mm)

  • Oil and gas
  • Pulp & paper
  • Petrochemical/chemical processing
  • Research laboratories
  • Aerospace and defense
  • Chemical processing
  • Power generation
  • Cryogenic and semiconductor
  • Shipbuilding and heavy industrial industries


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