UL Listed Pre-Action Valves

Pneumatically actuated, double-interlocked Pre-Action Valve; utilizes a Deluge Dry Pipe Valve and a Pneumatic Pilot System. It is controlled by the pressure maintained in the release system and supervisory pressure maintained in the sprinkler piping system. Vertical or Horizontal Installation. Flanged or Grooved Ends available. UL Rated Working Pressure – 300 psi. Max. Air Supply Pressure – 30 psi.