Gas Systems
Chemical gases Clean Agent FK-5-1-12 – HFC-227ea
The Clean Agent FK-5-1-12 – HFC-227ea chemical gas systems are fire suppression systems with rapid extinguishing capacity, suitable for fires with a risk of immediate spread.
Clean agents: new generation chemical gases
In cases of fires most exposed to the danger of immediate propagation, the most widely used category of extinguishing agents is that of clean agents. These are chemical gases with a capacity for rapid extinguishing of the fire.
In fact, these systems are designed to homogeneously mix the extinguishing gas with the air of the room to be protected, in order to reach the concentration necessary for extinguishing within 10 seconds. Among the clean agents, the most widespread class is that of hydrofluorocarbons (HFCs) and similar, of which we install FK-5-1-12, HFC227ea, HFC125.
HFCs are stored in liquid phase and require smaller quantities of extinguishing agent, which is why these systems require a smaller number of cylinders compared to other gaseous extinguishing agents, consequently occupying less storage space.
How it works
The chemical gas extinguishing system has undergone a major evolution in the last decade following the gradual replacement of Halon 1301 which has led to the generation of products in line with current environmental compatibility standards. The solutions that use HFC gas work by total saturation of the environment (total flooding), thanks to the mixture of gas and air that acts on the combustion reaction, interrupting it.
This operating system has the great advantage of creating homogeneous conditions throughout the environment, without affecting materials at risk. The gas-air concentration must be kept constant until the danger of flames is eliminated.
The retention time and leaks of the room are verified by means of the ‘Door Fan Integrity Test’.
Benefits
System configuration
GAB CYLINDER BANKS
FIXED SYSTEM
SEMI-FIXED SYSTEM
Applications
Civil and Artistic Heritage
Industry
Luxury and prestigious
Transport and Infrastructure
Parts
System description
- Total flooding system pressurized at 25 or 42 bar
- Configuration based on main cylinder and slave cylinder
- Switching valve
- Different capacity and size of cylinders (up to 140 l)
- Built with a dedicated calculation software, based on the NFPA-EN regulations relating to the discharge in 10s
- Precautions to avoid exposure to the clean agent (evacuation alarm, discharge delay)