VENT TO PREVENT Model 7900AAV Model 7950ILV NFPA 13 code requires the venting of excess air from wet fire sprinkler systems to help prevent corrosion. AGF PURGEnVENT Air Venting Valves are designed to purge air from the system while it is being filled and then vent excess air from the system while it is in operation. Help prevent corrosion and exceed code requirements by installing PURGEnVENT on all of your wet fire sprinkler systems. www.purgenvent.comhttp://www.purgenvent.com http://www.purgenvent.com