LIFECO Preaction & Deluge Valve with external resetting function is a differential latch type valve which designed for fire protection system.
The external resetting feature of the LF-DV valve provides easy resetting of a pre-action system without opening the valve cover for manual repositioning of the clapper and latch mechanism.
Actuation of electric system automatically releases the LF-DV valve by allowing water to flow into the sprinkler piping system and to be discharged from any sprinklers that is open.