Manufacturer: Intertechnik Technische Produktionen GmbH & CO KG  
Product type: Fire Fighting Equipment  
Name: Fire fighting equipment  


The development by Intertechnik of their MFS nitrogen fire detection and extinguishing system for armoured vehicle engine compartments was based on experience acquired over many years of research, trials and practice with explosion-suppression systems.

According to the company, the system meets the technical requirements of the military performance specification for engine compartment fire extinguishing systems.

The complete MFS system consists of three main elements: the central processor unit, temperature sensor and the extinguishant.

The Central Unit MFS is a microprocessor control unit that is also used for the Intertechnik EXWA explosion suppression system for armoured vehicle crew compartments which is covered in detail in a separate entry. It has an ergonomic display which provides the current status of the system at all times, as well as a manual hand release for emergency use.

The MFS temperature sensors are based on Pt 500 thin film elements and, together with the MFS central processing unit, can be adapted to fit any engine compartment. This is achieved by setting the temperature signature of each sensor via the software of the MFS Central Unit.

The bottle type MFS extinguishant contains the nitrogen. Depending on the type of vehicle, the quantity of nitrogen required will generally be two to three times higher than halon. The bottle type containers are available in various sizes to suit different vehicle applications.

The manufacturer states that this system has a number of advantages, including the measurement of the actual temperature at several points in the engine compartment by temperature sensors.

A microprocessor with appropriately well-thought-out software evaluates the temperatures measured by the sensors and ensures that the system can be relied upon to only trigger in the event of an engine fire.

In addition, a visual warning signal is given of critical conditions which may result in the system being triggered.

An automatic check is performed continuously by the central unit, ensuring an extremely high level of operational reliability.

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