They allow various risks to be protected simultaneously with a single w-fog high-pressure water mist system. They are activated by the fire panel signal, directing the supply of pressurised water toward the enclosure or section affected by the fire.
The installation is simple: the valve is placed over each individual risk or section of the network.
In the event of activation, the water flows through the common branch of pipe until it reaches the collector for control valves, normally closed. The signal from the panel opens the valve that governs that sector, with which the agent is channelled without needing duplicate equipment or piping.