IG55 Inert Gas

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IG55 has been introduced as an alternative to Halon 1301, production of which ceased at the end of 1993, under the agreed adjustment made to the Montreal Protocol in November 1992.
IG55 is a mixture of two naturally occurring gases that do not support combustion, nor have an impact on the ozone layer.
The two gases, Nitrogen and Argon are mixed in the following proportions:
  • Nitrogen 50%
  • Argon 50%
Seamless containers in i3 & iFlow systems are designed to hold IG55 in gaseous form at a nominal pressure of 200 or 300 bar at 15°C.
Handling and Installation of IG55 equipment should only be carried out by persons experienced in dealing with this type of equipment.

i3 & iFlow systems are designed to extinguish fires involving flammable liquids, gases and class A  hazards, especially electrical equipment by using IG55.
The systems are designed to be total flooding and consist of a fixed supply of IG55 connected to a piping system with nozzles to direct the agent into an enclosed hazard. i3 extinguishes fires by lowering the oxygen content below the level that supports combustion.
Since IG55 is stored as a gas, it discharges as an invisible gas, allowing people to safely exit a protected space without obscured vision.

i3 & iFlow systems are particularly valuable in extinguishing fires in enclosures containing hazards or equipment where a clean, electrically non-conductive medium is essential or where the cleaning up of foam, water or powder would be problematic.

  • Nitrogen (N2)                                                          50%
  • Argon (Ar)                                                              50% 
  • Pressure                                                                 259 -300 bar @ 15 °C
  • Ozone Depletion Potential (O.D.P)                             0
  • Global Warming Potential (G.W.P)                              0
  • Atmospheric Lifetime (A.L.T)                                     0
  • No Observed Adverse Effect Level (NOAEL)                43 %
  • Lowest Observed Adverse Effect Level (LOAEL)          52 %
  • Not Flammable
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