Water and Foam-Based Suppression Systems
The installation of foam and water-based systems is the most common application for addressing fire hazards. These can either be wet or dry type systems.
In wet systems, the extinguishant (water or foam) is contained within the entire length of the pipe network. The system is activated when the fusible link of the sprinkler head is broken. This fuse can either be made of glass or metal.
In dry systems, the extinguishant is held in a valve. Valve actuation can be electrical (fire detection), pneumatic (air pipe network) or hydraulic. These systems can have open sprinklers (deluge systems) or closed sprinklers (preaction systems). Foam-based suppression systems consist of low, medium and high expansion systems depending on the risk that needs to be addressed. The size of the systems is calculated using certified software and depending on the adopted standard (EN, UL-FM, VDS).