Our company handles the design, installation and maintenance of low-, medium- and high-expansion foam fire extinguishing systems. Such systems are broadly used in contexts in which it is necessary to protect hazardous environments such as petrochemical plants, tyre depots, waste deposits, refineries, pharmaceutical industries, airports, helipads, offshore platforms and naval contexts in general.



Foam System uses a mixture of water and foam as an extinguishing agent that works on the fire by creating a barrier that separates the fuel from the oxygen in the air and cools the fuel itself (wetting power).


TYPES AND FIELDS OF USE Our company utilises different types of foaming agents, with concentrations of use (Mixing Ratios) varying from between 0.5% and 6% of the volume of water. Some examples can be low-expansion Protein (P), low-expansion Fluoroprotein (FP), synthetic-based film-formers (AFFF) or low-expansion protein (FFFP), low-expansion alcohol-resistant film-formers (AFFFAR or FFFPAR) and medium-/high-expansion synthetics (HI-EX).

One specific case concerns Class A foaming agents – also called wetting agents – that, when added to the water in the necessary proportion (typically 0.1%–1%), reduce the surface tension and increase the impregnating capacity to improve operational water efficiency. However, it must be taken into consideration that these are suitable only for Class A fires such as of wood, paper, plastic or rubber. These Class A foams are, amongst other uses, widely utilised in the fire-fighting vehicles used by Fire Brigades.

When it comes to foam, it is necessary to make a distinction on the basis of the Expansion Ratio, which represents the volume of foam generated in m3 by each m3 of water-liquid foaming mixture (hence, a ratio of 1:200 indicates that 1 m3 of the mixture will generate 200 m3 of foam).

  • Low-expansion foam (1:5–1:20) is used for fuel depots, warehouses, process areas, where rapid intervention would be required and the fuel load is low;
  • Medium-expansion foam (1:20 - 1:200) is for large oil spills, containment basins and processing areas;
  • High-expansion foam (1:200–1:1000) is used for safeguarding large volumes by total saturation, hence submerging the entire volume of foam, used for deposits of LPG, LNG and tyres as well as cable tunnels.



The main components of a foam plant are:

  • A water reserve for ensuring the system has access to water;
  • A reservoir for concentrated foam liquid;
  • A water-liquid foaming mixer/premixer, for different types;
  • Pumping unit (if foreseen);
  • Pipes and valves, which carry the water-foaming liquid mixture to the point of use;
  • Foam generators, lances, nozzles, monitors and cannons that facilitate erogation of the mixture in the environment to be protected.

When the need arises, water and the foaming liquid are mixed according to the predetermined ratios, then the mixture formed is piped to the foam generators, where it comes into contact with air and expands to create the foam.




  • Foam is ideal for extinguishing fires of flammable liquids, often representing the only viable solution;
  • Wetting agents, or Aqueous Film-Forming Foam Concentrates (AFFFs), offer a marked reduction in the volume of water necessary to extinguish a fire, already having very low concentrations of the agent (0.1%–0.5%).


  • Leaves a filming residue that necessitates intense cleaning operations;
  • It is a complex system in proportion to the number of components.

The extinguishing agents utilised in foam fire-fighting systems can be distributed in various ways. In some cases, to ensure the highest level of safety and efficiency, they can be combined with smoke-detection systems and be subject to the numerous maintenance operations covered by our Service.

Types of fire-fighting systems

Some of the types of systems we make

Extinguishing systems designed for the protection of large industrial and civil areas.


Our Aerosol extinguishing systems are efficient, free from environmental impact and competitive on the market due to their swift design, installation and maintenance.


Carbon Dioxide (CO₂) systems are simple, reliable and effective. Being easy to manage and maintain, they offer total safety even in large industrial production spaces.


Our inert gas systems use Argon and Nitrogen which, due to their nature, offer complete safety even on particularly delicate and precious materials.


Dry powder extinguishing systems, in particular with Sodium Bicarbonate, are ideal for extensive sites in the petrochemical industry.


Water Mist extinguishing systems are efficient, having no environmental impact and being non-toxic, offering a high extinguishing power thanks to the elevated pressurisation of the water that is not released as a “deluge” but is sprayed.


In the event of fire, these active safety systems guarantee the escape of any smoke from the safeguarded rooms, produced by the combustion in the areas at risk. With this mode, the SistemOpen90°™ ensures the areas are safe and smoke-free, guaranteeing the area leading to the escape routes is protected.


Designed to suppress and extinguish fires of solid materials, flammable liquid fuels and electrical equipment.


Particularly suited to areas in which extinction with water is not possible.


Foam Systems avail of a mixture of water and foam to extinguish fires and are particularly appropriate in the presence of flammable liquids.


For all systems using water as an extinguishing agent, these guarantee that the flow rate is exact so as to ensure perfect efficiency and reliability.


ESSECI S.r.l. offers an instrumentation rental service and performs tests directly with its own qualified technicians. On request, a Test Report signed by a Fire Prevention Expert can also be issued.


In the event of a fire, active safety systems guarantee a higher pressure in the safeguarded premises than in the other environments. In this way, they keep the safeguarded areas constantly free from smoke, creating a protected area leading towards the escape routes.


Our smoke and gas detection systems, with the relative alarm signalling systems and any extinguishing units, guarantee full protection against the risk of fire.


Integrated detection, video monitoring and extinguishing systems with remote control for the open-air storage of various kinds of flammable materials.


Fire Fighting Services

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From "Ordinary and scheduled maintenance" to much more complex formulas such as "Global Service" and "Integrated Global Service"

Fire-fighting maintenance

Security systems

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Intrusion detection systems, video surveillance systems, sound diffusion and evacuation systems, systems for technological controls and access controls

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