Oxygen Free Nitrogen (OFN)


Oxygen Free Nitrogen (OFN) is used for leak detection, strength and pressure testing and in helping to reduce oxidation when brazing.


  • Other
    Other *

*Leak testing of RAC systems, Strength and pressure testing, Cleaning condenser coils, For use alongside Braze-A-Gas to reduce oxidation and scale build up when brazing thus preventing blockages in the system

Packaging information

  • 2.2 kg
  • 132 kg MCP
  • Available from A-Gas wholesale partners. Use the "Find a supplier" box to the right for further details
  • Store cylinders in a cool, dry, well ventilated area, out of direct sunlight
  • A-Gas operates a returnable cylinder fleet, empty cylinders are to be returned to an A-Gas wholesale partner
  • For alternative or larger package sizes please contact A-Gas on 0215518790 or via the Contact Us form

Product Features & Benefits

  • Cylinder fitted with a non-return valve to ensure that the nitrogen supply is free of contaminants
  • A-Gas OFN is 99.998% pure and has less than 5PPM oxygen and less than 2PPM moisture
  • A high pressure gas, use a certified nitrogen regulator
  • High impact guard made to EN964 standard
  • Non-flammable and non-toxic compressed gas
  • Cylinder outlet connection is 5
  • 8? BSP female, a standard fitting size for nitrogen regulators
  • It won?t contaminate a refrigeration system and prevents scale build up
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