FM200 is transported in liquid form to the nozzles in the extinguishing sector where FM200 is atomized. Energy is required for vaporization and must be supplied to the droplets. As fig. 1 shows, the ambient air is drawn into the FM200 droplets / nitrogen jet which provides the necessary energy for vaporization.

On account of the distinctly higher impetus of the jet at a higher operating pressure at the nozzle, with conventional low-pressure systems, less energy is transported for droplet vaporization in the jet, although more energy is required for rapid vaporization of the larger FM200 droplets (see fig. 1).The droplet size, arising from atomization of FM200, decreases with increasing operating pressure at the nozzle.

With simple thermodynamic calculations, it is possible to work out the life of an FM200 droplet expressed as the distance traveled in meters as a function of the operating pressure at the nozzle (see Table 1).

The results presented in Table 1, clearly show that only at a minimum operating pressure of 10 bar is an FM200 droplet completely vaporized before it can collide with any object in the extinguishing sector. For this reason, with a high-pressure system, a delay until all the FM200 is totally vaporized under unfavorable thermodynamic conditions upon completion of the flooding process, is impossible.

While nitrogen in the cylinder head via the FM200 liquid surface serves to fill the pipe network with liquid FM200 and to initiate atomization at the nozzle, the nitrogen dissolved in the FM200, which sustains the flooding of FM200 in the extinguishing sector, is crucial.

We are also able to provide Room Integrity Test services to determine the leak tightness of a protected area without discharge of gas. The test is performed using portable devices comprising of pressure gauges, variable speed fans and a dedicated computer programmed written to confirm to NFPA 2001 and 12A appendix B procedure.

Total flooding systems

Total flooding systems extinguish fires by rapidly supplying an enclosed volume with enough FM200 to create an atmosphere that is incapable of supporting combustion.

The systems is completely effective even in spaces with a limited amount of open area. By filling the entire space fire cannot exist on the floor, on the ceiling or at any level in between.

Not matter how severe the flames may be they are normally extinguished in less than 30 second upon discharge.