Double float valves and a control valve connect to a fire sprinkler main pipe with a one-half-inch male national pipe thread connection. A pressure relief valve and a contractor-provided pressure gauge per NFPA 13 rated for a minimum 300 PSIG monitor the first float valve. An ECS PAV-WS automatic air vent is included which is not required to pipe to a drain.
DOUBLE FLOAT VALVES CONTROL VALVE 1/2" MNPT PRESSURE RELIEF VALVE PRESSURE GAUGE PER NFPA 13, MIN 300 PSIG. (CONTRACTOR TO PROVIDE) ECS PAV-WS AUTOMATIC AIR VENT PAV-WS IS NOT REQUIRED TO PIPE TO DRAIN PRESSURE GAUGE MONITORS FIRST FLOAT VALVE FIRE SPRINKLER MAIN PIPE
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