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PROTECTION FOR PRECIOUS BUILDINGS AND INSTALLATIONS - THE DOMINATOR IMPULSE CANNON

The Gol stave church, Hallingdal Norway was built in the mid 1200's; in 1882 the church was dismantled and rebuilt in 1884 at Bygdöy (Oslo). The wooden construction is always endangered, mostly because of the many visitors; since 1996 it is protected by a fixed installation of four IFEX Dominator impulse extinguishing cannons.



The IFEX 30 litre Dominator impulse cannon presents a solution for fixed local application. The cannon is constructed coaxially - with the power chamber located around the water chamber. The cannon is delivered with a rigid carbon steel framework that will be mounted on to a solid foundation to absorb the recoil force. The outlet muzzle cone is adjustable for tuning of shot length and spray pattern. The system is triggered automatically by a preset temperature. The Dominator cannon can be used for both outside and inside applications.




Water barrel capacity 30 litre
Operating pressure 25 to 55 bar
Shot length 15 to 45 metres
Width of spray 8 to 12 metres
Valve opening and closing time 50 milliseconds
Duration of shot 100 milliseconds
Velocity at muzzle 120 metre/second
Water connection 21/2" BSP
Air connection 11/4 BSP