CO2 Suppression Systems

Carbon dioxide is a plentiful, non-corrosive gas that does not support combustion nor react with most substances. It has a low toxicity classification by Underwriters Laboratories (Group 5a). It is commonly compressed to the liquid state for storage and transportation in DOT cylinders. Upon release, it discharges under its own pressure giving the appearance of steam as its low temperature crystallizes water in the air. For clean agent fire suppression purposes the discharge is designed to raise the carbon dioxide concentration in the hazard. This removes the free oxygen which supports combustion*, and results in fire extinguishment. The resultant lack of free oxygen dictates that total flooding hazards be evacuated immediately, and carbon dioxide from local application be avoided by personnel.

Carbon dioxide is an effective fire extinguishing agent that can be used on many types of fires. It is effective for surface fires, such as flammable liquids and most solid combustible materials. It expands at a ratio of 450 to 1 by volume. Other desirable attributes are its high degree of effectiveness,  its excellent thermal stability, and freedom from deterioration. In addition, carbon dioxide has so many additional commercial uses that refills are available in practically every large city or seaport throughout the world. Criteria for quantity and concentration of carbon dioxide is developed in NFPA-12 for both local and total flooding applications.

Non-occupied Applications:

  • Dip Tanks
  • Electric Generators
  • Electric Generating Equipment
  • Electrical Panels
  • Marine Applications
  • Spray Booths
  • Waste Disposal Equipment
  • Gas Turbines
  • Coal Silos
  • Hazardous Material Storage
  • Quench Tanks
  • Semiconductor Wet Benches
  • Computer Room Subfloors
  • Non-Occupied Control Rooms
  • Coating Operations
  • Paint Lines
  • Wave Solder Machines
  • Machining Operations
  • Hose Reel Stations
  • Transformer Vaults
  • Dust Collectors
  • Printing Presses
  • Inerting Systems
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