RASSCO SECURITATE sells, designs, installs and maintains Water Mist Fire Suppression Systems.

Extinguishing system with water mist arose from numerous research in order to cover all the needs and requirements of the fire protection requirements, as an alternative to other systems: halon, CO2, sprinklers and presenting many advantages compared to the methods mentioned above. Pure water as fog has the ability to extinguish fires with high calorific value: Fireworks flammable liquids, gases (eg. Hydrocarbon solvents), shots from electronic equipment, cables, wood, paper. It’s the easiest and cheapest extinguishing system using a small amount of water. Fields of application are multiple: 

• STORAGE OF FLAMMABLE LIQUIDS 
• KITCHEN HOODS 
• TRANSFORMER STATIONS 
• GAS TANKS 
• GALLERIES CABLES 
• TECHNICAL PUBS 
• ENGINES 

Placed in the sewer diversion emission nozzles generate a fine spray of water cone filled with a droplet size of the order of 20 to 200 microns. This type of spray is generally obtained using internal divergence that causes a controlled turbulence before reaching the outlet of the nozzle. Special geometry of these nozzles allow their use at low pressure without requiring a pressurizing agent, resulting in a simplification of the installation in relation to high-pressure systems. 

Principles of fog water system: 

• WATER DROPLETS CREATES A HEAT EXCHANGE WITH THE ENERGY PRODUCED IN THE COMBUSTION ZONE, PREVENTING TEMPERATURE RISE. THIS EXCHANGE OF ENERGY IS PROPORTIONAL TO THE SURFACE AREA OF THE WATER DROPLETS BUT NOT VOLUME. AT AN EQUAL VOLUME, THE MORE DROPLETS ARE SMALLER, THE SURFACE ENERGY THAT IS EXCHANGED IS GREATER 
• A SIDE EFFECT IS THE DECREASE IN OXYGEN CONCENTRATION. THE DROPLET OF WATER NEAR THE FIRE OUTBREAK, IT WILL GRADUALLY EVAPORATE, EXPANDANDU – IS 1,600 TIMES, THUS REMOVING OXYGEN 
• CLOUD WATER DROPLETS FILTER INFRARED RADIATION, THUS PREVENTING TEMPERATURE RISE 
• CLOUD WATER DROPLETS PLAYS AN INSULATOR AND PREVENTS HEAT FLOW DISPERSION 
• RADICALS THAT ARE PART OF THE CHAIN REACTION OF COMBUSTION ARE ABSORBED BY WATER DROPLETS, THUS INTERRUPTING THE REACTION SEQUENCE