CO2 Gas Fire Suppression System

Home Fire Systems

CO2 Gas Fire Suppression System

The CO₂ Gas Fire Suppression System provides both total flooding and local protection through a fixed nozzle network.
It must be designed and implemented in accordance with NFPA 12, and all stages — design, installation, testing, maintenance, and modifications — must be handled by qualified fire protection specialists.

CO₂ is a colorless, odorless, and residue-free natural gas that extinguishes fires through both cooling and oxygen displacement.
By reducing the oxygen concentration from about 21% to 15%, it effectively suppresses combustion.

Safety and Operating Conditions

CO₂ systems are intended for use in unoccupied or rarely occupied spaces.
Because inhalation at suppression concentrations can be dangerous, audible and visual pre-discharge alarms are mandatory.
Being a natural gas, CO₂ has no ozone depletion potential (ODP = 0) and no atmospheric persistence.

Applications

CO₂ systems are widely used in areas involving electrical or flammable hazards:

Generator, transformer, and switch rooms
Electrical cabinets and breaker panels
High & Medium voltage rooms
Communication and control centers
Test laboratories
Data and record storage rooms
Printing and packaging machines
Flammable liquid storage areas
Industrial production lines
Compressor and machinery rooms

The system provides both total flooding in enclosed spaces and local application in open or semi-open environments.

System Design

According to NFPA 12, each fire hazard type requires a specific minimum design concentration.
The CO₂ quantity is determined based on these parameters using hydraulic calculation software.

Unlike most gas systems, CO₂ protection does not always require a fully sealed room — localized protection can still be achieved effectively.

Installation & Testing

Piping and fittings must comply with appropriate pressure ratings (e.g., SCH40–80 seamless steel pipes, 3000 lb forged fittings).
The system must undergo nitrogen leak and pressure testing.
Open ducts or vents should be equipped with automatic dampers to contain gas.
The discharge should maintain CO₂ presence for at least 10 minutes to prevent re-ignition.
Door Fan Room Integrity Testing should be performed to verify hold time.
All installation and maintenance must be carried out by certified professionals.

Advantages

Rapid fire suppression via cooling and oxygen reduction
Non-conductive, safe for electrical applications
Residue-free, no cleanup required
Suitable for both local and total flooding systems
Environmentally safe, with zero ozone impact

Engineered by MYMEC GROUP

At MYMEC GROUP, we design and implement CO₂ fire suppression systems fully compliant with NFPA 12 standards.
Our engineering process includes hazard assessment, flow calculation, integrity testing, and commissioning to ensure maximum reliability.

We provide fast, efficient, and long-lasting fire protection solutions for industrial and high-risk environments.