Preaction Type A Valve EN12845 Compliance DN40 to DN200, 16 Bar (European Conformity)
Fire protection systems controlled by the TYCO Model DV-5 Preaction Type A Valve utilize automatic sprinklers and a supplemental detection system.
The supplemental detection system is typically comprised of 24 VDC heat detectors, smoke detectors, and manual pull stations.
Actuation of the detection system automatically operates (releases) the Model DV-5 Deluge Valve, allowing water to flow into the sprinkler piping system and to be discharged from any sprinklers that may subsequently open. In the event of loss of power, the Model DV-5 Deluge Valve with Preaction Type A Trim will act as a regular dry-pipe valve station.
The Preaction Type A assembly is rated for a maximum service pressure of 16 bar.
These Model DV-5 Preaction Type A Valves have been designed in accordance with the EN12845 Standard describing Preaction Type A Trim criteria. This standard defines operation as a dry pipe system activated by an automatic fire detection system but not operation of sprinklers