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AGAS - Together we can

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.

Packaging Information




kg MCP

  • Available from A‑Gas wholesale partners - find a supplier 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



*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

Product Features and 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
  • The information contained within this website is for guidance only - for further system-specific advice please contact us directly