CARDOX™ Low Pressure CO₂ Fire Suppression System
Centralized, Large-Capacity CO₂ Suppression for Complex Industrial Hazards
The CARDOX™ Low Pressure CO₂ Fire Suppression System is engineered for applications requiring large quantities of carbon dioxide, multiple discharge cycles, expansion capability, or protection of numerous hazards from a common storage supply.
Unlike high-pressure cylinder systems, CARDOX™ stores CO₂ in refrigerated, low-pressure storage tanks, providing an efficient and scalable suppression solution for facilities requiring more than 5,000 lbs. of CO₂ for centralized protection across multiple hazard areas.
Designed for demanding industrial environments, CARDOX™ low pressure CO₂ system delivers rapid, reliable suppression while supporting extended discharge capability and system flexibility.
Key Advantages
- Ideal for Large CO₂ Requirements
Designed for applications requiring more than 5,000 lbs. of CO₂ for multiple hazard coverage. - Multiple and Extended Discharges
Supports repeated or extended discharge cycles from a centralized storage system. - Centralized Hazard Protection
Allows multiple hazards to be protected from a common piping network. - Rapid Suppression Performance
CO₂ penetrates the hazard area within seconds to suppress fire by oxygen dilution.
- Clean, Residue-Free Agent
Leaves no residue, eliminating post-discharge cleanup. - Cost-Effective Replenishment
CO₂ is generally less expensive to replenish than many alternative suppression agents. - No Hydrostatic Testing Required for Storage Tank
Reduces long-term maintenance complexity compared to high-pressure cylinder banks.
Applications
CARDOX™ Low Pressure CO₂ systems are well suited for industrial environments requiring centralized or high-capacity protection, including:
- Facilities with multiple protected hazard areas
- Industrial process equipment
- Power generation facilities
- Petrochemical and refining operations
- Manufacturing plants
- Areas requiring repeated suppression capability
The system supports both enclosed and partially enclosed hazards and can accommodate environments with continuous air handling processes.

System Architecture
Suppression Method
Carbon dioxide extinguishes fire by:
- Diluting oxygen to a concentration that will not support combustion
- Absorbing heat from the fire
CO₂ may be applied using:
- Total Flooding – Delivers CO₂ into an enclosure until the required extinguishing concentration is achieved.
- Local Application – Directly applies CO₂ to the protected hazard at the rate required to suppress flames and cool the hazard.
CO₂ systems are generally not recommended for normally occupied spaces except where other means of fire protection are not effective.
Low-Pressure Storage Design
CARDOX™ stores CO₂ in refrigerated low-pressure storage tanks, available in:
- Vertical or horizontal configurations
- Capacities ranging from approximately 2¾ tons to 60 tons
- Multiple voltage options (120, 220, 380, 460, and 575 volts; 50/60Hz; single and three-phase variants)
- Optional CSA and PED-approved configurations are available.
Detection & Control Integration
- Engineered for integration with detection and control systems
- Supports centralized system actuation
- Allows coordinated suppression across multiple hazard zones
- Designed for scalable facility growth and future expansion
Installation & System Design
- Horizontal or vertical storage tank installation options
- Designed for facilities requiring centralized CO₂ supply
- Suitable for extreme temperature environments
- Accommodates partial enclosures or unenclosed equipment
- Supports multiple hazard discharge configurations
Technical Specifications
| PARAMETER | SPECIFICATION |
|---|---|
| System Type | Low-Pressure Carbon Dioxide Fire Suppression |
| Storage | Refrigerated low-pressure storage tank |
| Capacity Range | Approximately 2¾ ton to 60 ton |
| Application Methods | Total Flooding or Local Application |
| Discharge Capability | Multiple and extended discharges |
| Installation Options | Horizontal or vertical tank configurations |
| Typical Use | Large-capacity, multi-hazard industrial protection |
Compliance & Approvals
- FM Approved
- Optional CSA configurations available
- Optional PED-approved systems available
- Designed for installation in accordance with applicable NFPA standards and AHJ requirements
Resources
Resource links coming soon!
Scalable Suppression. Centralized Protection.
The CARDOX™ Low Pressure CO₂ Fire Suppression System delivers efficient, large-capacity fire protection for complex industrial facilities, providing flexible, repeatable suppression from a centralized CO₂ supply.



