Systems that use the agent CO2 are designed in agreement with the following rules :
- NFPA 12 Carbon Dioxide Extinguishing System - National Fire Protection Association,
- Design of the systems is performed in agreement with procedures and hydraulic calculation software of HUGHES ASSOCIATES, INC.
- Carbon Dioxide is a non-conductive, odorless and colorless gas; during the extinction process, it does not produce harmful substances and it is released into the atmosphere without damaging the environment.
- The extinguishing mechanism of this gas is primarily related to dilution of oxygen content in the atmosphere that surrounds a hazard, until combustion is no longer supported;
- For particular application, an effective cooling action is also helpful, especially where extinguishing gas is applied directly on burning materials.
- Carbon Dioxide, because of his high density, tends to stratify and produces an high thermal shock due to low gas temperature at the distribution cone.
- Total saturation: the system is designed to achieve and maintain the required gas concentration within a closed volume;
- Local application: the system is designed for large enclosed volumes and surface fires (flammable liquids, gases and solids), for which the firefighting action can be limited to the actually affected area.