Johannesburg
17 - Gold Reef  Road
Ormonde Ext 35
Gauteng
South Africa

Tel: (27) (011) 247 7800
Fax: (27) (011) 247 7831
Box 82245 Southdale 2135
secfire@global.co.za
Cape Town
17 Kunene Circle   
Omuramba Business Park        
Montague Gardens       
Cape Town  
 
Tel: (27) (021) 526 9300
Fax: (27) (021) 526 9330
Box 313 Tableview 7439
sfpct@sfp.co.za
Durban
Unit 29                                  
Wareing Park                               
Cnr Caversham & Wareing Rd        
Pinetown 

Tel: (27) (031) 702 2130
Fax: (27) (031) 702 2132
Box 1741 Pinetown 3600
secfire@mweb.co.za

INERGEN Agent - INERGEN agent is a mixture of three inerting (oxygen diluting) gases: 52% nitrogen, 40% argon, and 8% carbon dioxide. INERGEN gas extinguishes fire by lowering the oxygen content below the level that supports combustion. When INERGEN agent is discharged into a room, it introduces the proper mixture of gases that still allow a person to breathe in a reduced oxygen atmosphere. It actually enhances the body’s ability to assimilate oxygen. The normal atmosphere in a room contains 21% oxygen and less than 1% carbon dioxide. If the oxygen content is reduced below 15%, most ordinary combustibles will cease to burn. INERGEN agent will reduce the oxygen content to approximately 12.5% while increasing the carbon dioxide content to about 3%. The increase in the carbon dioxide content increases a person’s respiration rate and the body’s ability to absorb oxygen. Simply stated, the human body is stimulated by the carbon dioxide to breathe more deeply and rapidly to compensate for the lower oxygen content of the atmosphere.

The INERGEN Fire Suppression System, manufactured by Ansul, is an engineered system utilizing a fixed nozzle agent distribution network. The system is designed and installed in accordance with the National Fire Protection Association (NFPA) Standard 2001, ‘‘Clean Agent Fire Extinguishing Systems.’’ When properly designed, the INERGEN system will extinguish surface burning fire in Class A, B, and C hazards by lowering the oxygen content below the level that supports combustion. INERGEN agent has also been tested by FMRC for inerting capabilities. Those tests have shown that INERGEN agent, at design concentrations between 40% and 50%, has successfully inerted mixtures of propane/air, and methane/air.
The system can be actuated by detection and control equipment for automatic system operation along with providing local and remote manual operation as needed. Accessories are used to provide alarms, ventilation control, door closures, or other auxiliary shutdown or functions.


When INERGEN agent is discharged into a room, it introduces the proper mixture of gases that will allow a person to breathe in a reduced oxygen atmosphere. A system installation and maintenance manual is available containing information on system components and procedures concerning design, operation, inspection, maintenance, and recharge. The system is installed and serviced by authorized distributors that are trained by the manufacturer.

Basic Use - The INERGEN system is particularly useful for suppressing fires in hazards  where an electrically non-conductive medium is essential or desirable; where clean-up of other agents present a problem; or where the hazard is normally occupied and requires a non-toxic agent. The following are typical hazards protected by INERGEN systems:
Computer rooms
Subfloors
Tape storage
Telecommunication/Switchgear
Vaults
Process equipment
All normally occupied or unoccupied electronic areas where equipment is either very sensitive or irreplaceable

Fire Suppression Gases

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Inergen Fire Suppression