Fixed Carbon Dioxide Systems

High-pressure systems involve the storage of liquid CO2 in specialized cylinders with a capacity of 30-45 kg, at a pressure of approximately 50 bar. The cylinders are filled with liquid CO2 to about 3/4 of their volume, leaving the remaining free space for accommodating any liquid expansion.

Low-pressure systems allow for larger quantities of carbon dioxide compared to high-pressure cylinder storage systems, which have limitations on the number of cylinders to avoid complicating the control and discharge system.

Full-saturation systems disperse gaseous CO2 into the enclosed area to be protected, creating an atmosphere that prevents further combustion. The CO2 discharge must occur rapidly to achieve complete saturation within a few minutes.

Localized saturation systems are characterized by the rapid discharge of a large quantity of CO2 into a partially enclosed space, saturating that specific area before the extinguishing gas diffuses and dilutes into the surrounding environment.

CO2 systems are suitable for applications such as paint production and coating facilities, electrical installations, textile machinery, and more. The main limitation of this type of system is the potential danger of the CO2 extinguishing agent to humans. With the concentrations used for extinguishing, the air in the protected area becomes unbreathable due to reduced oxygen levels for the occupants.