Deluge fire protection systems
Deluge systems stand out as a highly effective solution for protecting areas with special hazards, such as those prone to rapid fire spread, requiring high cooling capacity, or where the risk could lead to leaks of flammable or toxic gases that can be neutralized with water.
These systems differ from sprinkler systems in both activation methods and water discharge techniques.
Beneficial and safe technology
Rapid and uniform extinguishing
Simultaneous water spray discharge from all nozzles ensures a rapid and uniform fire extinguishing action, allowing for quick risk containment.
This feature is crucial in environments where minimizing damage and downtime is essential, such as power plants, data centers, and processing facilities.
Effective against high-intensity fires
With the capacity to deliver high water volumes quickly, deluge systems are particularly suited for containing high-intensity fires that demand robust suppression.
Protection for high-risk areas
Deluge systems are ideal for protecting areas at a high-risk of fire, such as industrial plants with highly volatile combustible materials, chemical storage warehouses, electric turbine rooms, and tanks containing flammable liquids.
In these settings, the ability to quickly control large fires is essential to prevent severe harm to personnel, structures, and machinery.
Flexible installation
Deluge systems can be installed both indoors and outdoors, adapting to diverse structural configurations and layouts.
They require an appropriate detection system for their activation, always paired with a discharge control system.
This flexibility makes them a versatile solution for safeguarding a wide range of buildings and infrastructures.
Features
Mozzanica develops new turnkey projects, expansions, and revamps according to current regulatory standards to secure and protect process areas, tank farms, hazardous loading and unloading zones, and areas for handling and storing hazardous or flammable materials. They utilize the latest technologies available on the market to optimize their systems.
In addition, Mozzanica researches, designs, and validates all solutions defined in the new "Fire Prevention Code" under the category of "alternative technologies," such as:
- Automatic aiming and orientation-recognizing monitors that employ water jets to reach at-risk areas identified by advanced thermographic systems;
- High-efficiency turbines that combine the benefits of water misting with long-range coverage.
The valve assemblies and control panels for monitors can be designed and pre-assembled as pre-engineered packages in Mozzanica’s workshop for faster installation, or built directly on-site, depending on the characteristics of the site to be protected.
Operating principle
- Water dispersion: Deluge systems use open nozzles that, once the valve is activated, either spray or mist water depending on the specific nozzle type. The sprayed or misted water enhances heat absorption, helping contain the fire and cool heated components.
- Deluge system activation: In the event of a fire, an independent detection system—typically comprised of smoke, heat, or flame detectors—triggers the opening of the deluge valve. Activation can be automatic or manual, based on the site’s specific requirements.
- Piping: Deluge system piping remains empty in standby mode, filling with water only upon valve activation. To prevent corrosion and damage caused by stagnant water, pipes must be made of galvanized steel and/or equipped with anti-corrosion protection.
In addition, sprayed water can be used to protect mineral oil storage by providing an "emulsifying" effect. The small droplet size, their ability to penetrate through flames, and the jet shape allow the water to reach unignited oil, creating an oil-water emulsion that deprives the fire of combustible material.
Industrial sector
- Chemical, petrochemical, steel, textile, wood and paper plants
- Storage facilities for combustible materials, explosives, and hazardous substances
- Power plants, airports
Reference standards
- UNI CEN/TS 14816
- UNI CEN/TS 14972
- NFPA 15
- NFPA 25
Marine sector
- Hangars
- Flight decks
- Critical machinery areas
- Outdoor areas on open decks
Reference standards
- IMO Solas
- FSS Codes
- Flags Regulations
- Class Regulations
- Customer Specifications
Oil&Gas sector
- LNG storage facilities
- Crude oil storage facilities
- Fuel/flammable liquid storage
- Refineries
- Extraction plants
- Hydrocarbon processing plants
- Energy production plants
- Transformers
- Gas turbines
Reference standards
- NFPA 15
- NFPA 25
- UNI CEN/TS 14816
- UNI CEN/TS 14972
- Customer specifications