Deluge and water spray systems use water in large quantities and, unlike sprinklers, simultaneously over the entire protected space.

The functioning of a flood system is theoretically very simple: a network of empty pipes feeds open nozzles built in such a way to distribute water over the entire protected surface. Depending on the nozzles chosen, the water flow can be spread evenly or can be directed (in this case they are called water spray systems) - through appropriate deflectors - with a particular shape and speed in order to obtain an effective range to target particular points of the protected area.

For the protection of oil storage, can be used high speed nozzles or with an “emulsifying” effect, which the size of the drops, their ability to penetrate the flames and the shape of the jet, allows the water to strike the oil that is still not burning, creating an oil-water emulsion that removes available fuel from the fire.


The reference legislation

The reference standards for these types of solutions are the US NFPA 15 and the European technical specification TS 14816.


Chemical and pharmaceutical

Cooling systems for flammable liquid storage tanks, tankers loading bays, process systems, decks and production departments.

Mozzanica designs and manufactures deluge systems with galvanised steel pipes, stainless steel and with the most modern technologies offered by the market.



Processing and waste storage areas protection

Mozzanica develops integrated projects using thermographic and flame detection technologies combined with deluge systems to protect storage or shredding areas.
The company combines the use of fixed systems with spray nozzles and with a monitor network.




Mozzanica offers customised and engineered containers or racks solutions to contain the deluge valve groups, often combined with diagnostic and control systems. Thanks to its technical office, which prepares the project and the construction in its workshop, Mozzanica has satisfied the needs of national and international customers.


Mozzanica & Mozzanica Srl


Via Martiri della Liberazione, 12

23875 Osnago (LC) - Italy

T +39 039 2254 700

T +39 039 9910 618

F +39 039 9910 615



PEC mozzanica@legalmail.it


Cap. Soc. € 400.000,00 i.v.

REA Lecco 291853

P. IVA 02555530134

Sede di Milano


Via G. Sforza 62

20081 Abbiategrasso (MI)

F +39 039 9910 615

Mozzanica USA LLC


Sede USA

2253 Vista Parkway, Suite 8

West Palm Beach, FL 33411

T +1 561 370 3597




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