Potter PAV Automatic Air Vent

Features UL Listed for Fire Sprinkler Branch line applications per UL subject Air Release Valves for Fire Protection Service FM Approved for Air Release Valve for Sprinkler PAV is an automatic float type air vent used to reduce the amount air trapped in a pressurized fire sprinkler system Reducing the of air in a fire sprinkler system is essential to help protect the piping from the effects of corrosion that is often found at the interface in the fire sprinkler system piping as much air as possible will also have a positive effect on performance of vane type waterflow detectors The operation of type waterflow detectors can be delayed or prevented if too much is trapped in the system piping intent of the product is to vent as much air from the fire sprinkler as possible The PAV provides automatic venting of air as the is being filled Furthermore trapped air can also be vented as air in the system migrates to the vent location over time The air will automatically close when water reaches the vent The PAV a 1 2 NPT male connection which will allow installers to the outlet to a drain or other suitable location if there are concerns inadvertent water discharge Specifications Pressure to 120 4.5 to 49 to 175 PSIG Vent NPT inlet 1 2 outlet to drain Orifice Construction valve supervisory switch model RBVS Supervisory switch Used to monitor the position of the isolation valve vent screen assembly for outdoor installations above See Figure 2 subject to change without notice page 1 OF 3 Air Vent5401165 REV E 2 19Potter Electric Signal Company LLC St Louis MO Phone 800 325 3936 www pottersignal comfirealarmresources com is strongly recommended to install a ball valve in line with the PAV to assist in servicing the strainer without disabling the sprinkler system Read and understand the instructions provided before you proceed with installation The PAV shall be installed in accordance with local ordinances the applicable NFPA13 NFPA13D or NFPA13R standard The Engineer of Record should select the Model PAV Potter Air Vent installation location Usually at a point in the system that will vent the most The location of the PAV must not interfere with the spray pattern of any sprinkler head The connection point must be off the top of the pipe See 1 The piping must be level or pitch back toward the fire sprinkler system piping and arranged in such a manner that water will not become trapped outlet of the PAV contains a 1 2 male NPT threaded connection allowing the device to be piped to a drain or other suitable location if there concerns about inadvertent water discharge after installation and filling of the fire sprinkler system the PAV should be inspected for leaks and proper operation The unit should inspected periodically Thereafter the manufacturer recommends quarterly or more frequently should include removal and cleaning of the strainer screen Remove the screen and flush with clean water Use a wire brush if necessary remove any particles trapped in the screen and Shutoff Valve Replacement vent used in the PAV is not field replaceable If the vent should fail the entire unit must be replaced Outline Drawing 1 7 16 RBVS OPTIONAL FROM POTTER CONNECTION TOP OF PIPING 1165 2 MeSH TYpe PIPING It is strongly recommended to install a valve and nipple supplied by others PAGE 2 OF 3 REV E 2 19Potter Electric Signal Company LLC St Louis MO Phone 800 325 3936 www pottersignal comPAVPotter Air Ventfirealarmresources com Assembly 2 MALE NPT DRAIN VENT ASSEMBLY VENT VALVE BALL VALVE CLOSE NIPPLE X 2 NIPPLE STRAINER 90 X 2 CLOSE NIPPLE 90 ELBOW UNION CONNECTION CLOSE NIPPLE 1165 1 B It is strongly recommended to install a ball valve nipple before the strainer The ball valave and nipple supplied by others Information Air Vent Vent Screen Assembly Ball Valve Switch w o cover tamper Retrofit Ball Valve Switch with cover tamper Number page 3 OF 3 REV E 2 19Potter Electric Signal Company LLC St Louis MO Phone 800 325 3936 www pottersignal comPAVPotter Air Ventfirealarmresources com