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    P.O. Box 23909, Doha, Qatar

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    +974 4436 4937

INERT GAS Fire Suppression Systems

At Thompson, we have specified, installed and maintain 1000’s of Inergen systems by Ansul. The systems are locally refillable in case of discharge and we are proud to be a leader of this Clean Agent System. This system will never be removed from the market as the gas is naturally occurring. Please contact Thompson associate to see if an Inergen system is the right product for your needs.

Cylinder Banks Centrally located and selector valves sending agent to protected room as determined by Control panel(s)


The INERGEN Fire Suppression System protects enclosed areas where people may be present, fire may strike day or night, and damage from conventional agents cannot be tolerated. Upon discharge, INERGEN agent fills the room, mixing with the air to suppress fires quickly and effectively.  Safe for people, INERGEN agent is non-synthetic and made of naturally occurring gases: nitrogen, argon, and carbon dioxide. Once discharged, it returns to the atmosphere in its natural state.

INERGEN agent is free of residues and corrosive by-products that may produce further property damage.  And because it poses no ozone depleting or global warming threat,INERGEN agent will never be subject to future legislative bans.


Using innovative iFLOW delivery technology, the INERGEN® 300-Bar Clean-Agent Fire Suppression System provides a regulated agent discharge into the protected hazard area.  INERGEN agent is composed of naturally-occurring gases found in the air we breathe. Unlike other inert gas agents, INERGEN agent includes a small percentage of carbon dioxide which enhances its ability to sustain life in a reduced oxygen atmosphere. INERGEN agent is nontoxic, does not produce corrosive decomposition products when exposed to fire and is designed to protect valuable or sensitive assets that could be damaged by conventional agents. When discharged, it will not produce a fog, so escape routes will remain visible. And in the aftermath of an incident, the agent simply returns to the atmosphere in its natural state causing no environmental impact.  During a typical inert gas system discharge, peak pressure and flow spikes occur. It is these peaks that are used to determine the pipe size specification and venting requirements. The iFLOW system reduces pressure spikes in the distribution pipe network during discharge. This allows for the use of smaller diameter, lower pressure-rated piping and reduced pressure relief venting requirements. An enhancement to the proven agent technology, the innovative iFLOW technology is based on three main elements:

  • The iFLOW valve reduces the peak pressure and regulates the flow at a nominal pressure of 60 bar (870 psi) in the 300 bar (4350 psi) system, while maintaining the ability to achieve 95% of the system design concentration within 60 or 120 seconds.

  • The iFLOW horizontal check valve minimizes installation time by facilitating the interconnection of containers and, in many cases, eliminates the need for a discharge manifold.

  • The iFLOW matrix system offers design flexibility and adaptation to complex architectural spaces. When compared with traditional racking, the matrix system allows storage containers to be positioned in traditional rows or around objects providing more flexibility during installation and quicker removal of containers from the bank during recharge and maintenance.

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