Where the formation of a dangerous explosive atmosphere is envisaged, it is possible to adopt a series of measures whose purpose is to prevent or limit formation of the same. The same applies to the formation of toxic atmospheres.

One of these measures is the monitoring of concentrations around installations or storage points by means of gas detection systems which, if necessary, automatically activate further protection measures.


Gas detection, what’s involved?

Depending on the need to detect harmful, toxic, explosive or flammable substances, it is first necessary to proceed with a careful risk analysis activity followed by carefully choosing of the type of detector. Added to this is the decision to make choices in the context not only of fixed detection systems but also of devices called "lifesavers", i.e. portable devices carried by personnel to signal the presence of gas or of hazardous atmospheres.

Electrochemical sensors


Infra-red sensors


PID sensors


Catalytic sensors



Design, consultancy, supply and service

For all phases of the selection, construction and maintenance process Mozzanica makes its qualified personnel available to support its customers.

Fire & gas systems

Mozzanica designs and supplies Fire and Gas systems with modular units built according to the EN 54-2, EN 54-4 and EN 12094-1 standards.

The control units are modular with a 19” rack system with LCD front and a touch display to view status information and anomaly conditions.

Assembly, systems tests and pre-tests are carried out at the Mozzanica laboratory.

The systems can be connected to field devices for gas and flame detection and start active fire protection systems, activate the alarm process through sirens and flashing lights and manage the shutdown of process systems with controlled outputs in the logic defined by the emergency plan .


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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