PYROGEN EXA & EXA-M Condensed aerosol fire suppression is a particle-based form of fire extinction similar to gaseous fire suppression or dry chemical fire extinction. The aerosol employs a fire extinguishing agent consisting of very fine solid particles and gaseous matter to extinguish fires. The condensed aerosol microparticles and effluent gases are generated by the exothermic reaction; until discharged from the device, the particles remain in vapor state. They are cooled and "condensed" within the device and discharged as solid particles.
Compared to gaseous suppressants, which emit only gas, and dry chemical suppression agents, which are powder-like particles of a large size (25–150 micrometres), condensed aerosols are defined by the National Fire Protection Association (NFPA) as releasing finely-divided solids of less than 10 micrometres in diameter. The solid particulates have a considerably smaller mass median aerodynamic diameter (MMAD) than those of dry chemical suppression agents, remain airborne significantly longer, and leave much less residue within the protected area.
Whereas dry chemical systems must be directly aimed at the flame, condensed aerosols are flooding agents and therefore effective regardless of the location and height of the fire. Wet chemical systems, such as the kind generally found in foam extinguishers, must, similarly to dry chemical systems, be sprayed directionally onto the fire. The condensed aerosol agent can be delivered by means of mechanical operation, electric operation, or combined electro-mechanical operation.
HOW IT WORKS
Direct To Source System (Local Application)
Total Flooding System (Room Protection)
FIRE SUPPRESSION MECHANISM
PYROGEN EXA & EXA-M Condensed aerosol fire suppression system are suitable for special hazards applications as replacements for Halon 1301 systems and high-pressure carbon dioxide systems. Aerosol system can also be used as alternatives to clean agent gaseous suppressants or water-mist systems.
The United States Environmental Protection Agency has approved PYROGEN EXA & EXA-M condensed aerosol fire suppression system as acceptable substitutes for Halon 1301 in Total Flooding System. PYROGEN EXA & EXA-M condensed aerosol fire suppression system are also non-ozone depleting and no global warming potential.