Ejector Automatic Air Vent with Electronic Supervision

Ejector Automatic Air Vent with Electronic Supervision

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Redundant float air release valve for installation on wet fire sprinkler systems. Automatically allows trapped air to escape the pipe network as the system is filled with water. Equipped with connections that can be monitored by a fire alarm system or building monitoring system to alert if the vent operation has been compromised. The PAV-WS controls corrosion by reducing trapped oxygen in fire sprinkler systems.


  • FM Approved
  • No requirement to plumb to drain
  • Meets NFPA 13 2016 edition venting requirements
  • Electronic supervision
  • Can be converted for nitrogen inerting with PAV-WNK kit


  • 12” (H) x 5” (D) x 9” (H)
  • 5” clear height from center line of connection
  • 10 lbs
  • 1” NPT connection
  • O. monitoring contacts



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