Gas fire extinguishing systems

EI PAC Pre-assembled fire-fighting systems

The Eusebi Group uses the information provided by customers to design and build systems on Skids, in order to supply easy-to-assemble tried and tested systems that guarantee significant space savings thanks to their compact nature.

EI PAC systems:

  • Gas extinguishing system containers

Extinguishing agent NAF S 125

NAF S 125 is identified by international standards as HFC and is a clean agent suitable for total flooding applications. Although all potential risks are all very individual cases, the use of NAF extinguishing agents can be an advantage in one or more of the circumstances below:

Extinguishing agent HFC 227

The extinguishing agent HFC 227 ea is a colourless, odourless gas which does not conduct electricity and has a density that is approximately six times greater than that of air. It is an extinguishing agent with low toxicity as far as gases go, and it therefore provides sufficient security because it does not cause serious harm to persons even if they are exposed to it for relatively long periods of time. In fact, the manufacturers assure you that the permitted exposure time is two minutes with a concentration of 10%. Its chemical-physical characteristics make it very practical in many cases where it is necessary to protect environments which have delicate materials inside: in fact, it doesn’t leave any dirt or residue, and it is not corrosive.

HFC 227 ea total saturation systems can be used to extinguish fires of all classes.

Gas fire extinguishing system ARGOSYSTEM

The ARGOSYSTEM uses the extinguishing agent argon gas, which acts on the fire by lowering the percentage of oxygen in it from 20.9% to below 15%, which is the threshold below which the fire theoretically goes out. The principle of saturation is total flooding in type, with total saturation. The physical characteristics of the premises to protect are consequently extremely important, so much so that the UNI 10877 standard foresees a pressure test (or more precisely to calculate the leaks), in order to provide an extremely accurate and reliable project.

Argon is an inert gas that humans are used to breathing from birth, since a very small percentage of air is made up of it. Its toxicity has been studied carefully and the standard foresees:

LOAEL, low adverse effects observed level: minimum concentration at which an adverse toxicological or physiological effect was observed. Argon 52% corresponding to 10% of oxygen.

Carbon Dioxide (CO2) F.F. System supplied by EUSEBI IMPIANTI

Extinguisher

Carbon dioxide is a compound made up of carbon and oxygen, its chemical formula being CO2.

At atmospheric pressures and ambient temperatures, it is a colourless, tasteless gas with a slight odour. It does not damage material it comes into contact with, does not leave any residue and has very good dielectric characteristics.

Depending upon the temperature and pressure it is put through, it can become solid, liquid or gaseous.

It is possible for it to be in the three phases contemporarily at a temperature of -5°C and as a relative pressure of 4.28 kg/cm² (condition known as the triple point).

At a temperature lower than the triple point, the carbon dioxide is solid or gaseous.

The solid carbon dioxide, at sublimation atmospheric pressures, passes directly from a solid state to a gaseous state.

Low pressure CO2 fire fighting systems

Extinguisher

Carbon dioxide is a compound made up of carbon and oxygen, its chemical formula being CO2.

At atmospheric pressures and ambient temperatures, it is a colourless, tasteless gas with a slight odour. It does not damage material it comes into contact with, does not leave any residue and has very good dielectric characteristics.

Depending upon the temperature and pressure it is put through, it can become solid, liquid or gaseous.

It is possible for it to be in the three phases contemporarily at a temperature of -5°C and as a relative pressure of 4.28 kg/cm² (condition known as the triple point).

At a temperature lower than the triple point, the carbon dioxide is solid or gaseous.

The solid carbon dioxide, at sublimation atmospheric pressures, passes directly from a solid state to a gaseous state.