Barbed Tubing Union, Jewel Orifice

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Polyurethane Tubing

Polyurethane tubing is recommended for use with our barbed fittings. It provides excellent flexibility and resistance to kinking.

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Description: Tubing supported in-line barb fitting with a pressed in sapphire jewel for precise flow restriction.

Max Pressure Rating: 100 psig, when used with appropriately sized polyurethane tubing. With a clamp installed, the limiting factor generally becomes the burst pressure of the tubing.


  • Brass body.
  • Sapphire is an excellent orifice material for critical flow applications because of its extreme wear, heat and corrosion resistance. The sapphire orifice diameter is held to a very close tolerance: +/- 0.0001″.

Note: Suggested tube ID is for polyurethane or vinyl tubing. Consult factory if you plan to use a different tubing material.
Note: Sapphire orifice sizes above 0.021″ are special order only. Please contact us for details.