Innovative aerosol

extinguishing systems       



‘Dry Sprinkler Powder Aerosol Extinguishing systems’, DSPAs for short, are developed to replace the halon-like extinguishing systems that were mainly used in marine applications. Halon is forbidden by the worldwide Montreal Protocol, signed in 1987. In 2001 this Agreement was put into force and since 2003 halon has been completely forbidden. DSPA extinguishing systems have advanced through years of scientific research.


Ignition of the ‘Dry Sprinkler Powder Aerosol Extinguishing systems’ can be done electrically, thermally or by hand. Once ignited, the reaction cannot be stopped and will continue until the active material has been completely spread in the air.
DSPA extinguishing systems act, similar to halon, volumetrically. This means that a compartment is filled with a minimum quantity of extinguishing material which acts directly on the ignition mechanism in the flame. The solid material of the DSPA system, as opposed to gas systems, enables interaction with the surface of the burning material. Consequently the flames are rapidly extinguished.
The Dry Sprinkler Powder Aerosol extinguishing system does not affect the ozone layer, lower the oxygen level or augment the pressure in the compartment where it is activated. The process relies upon solids with a high activating energy, brought together in a normal atmosphere. The systems can be used for fires type A, B, C, and F and are successful in initial and fully developed fires. The active components are even more effective at higher temperatures than at lower temperatures. In this way, it is possible to extinguish a fully developed (test) fire quickly, often within three minutes. Due to the great stability of active components they remain in the air for about one hour, preventing re-ignition. The aerosol generators can be installed in line in order to protect larger areas.
The appropriate use of a DSPA extinguishing system relies on the object, the function and the total area that
should be protected.