Firing system TAV-D

The Tyco® TAV-D Dry System Air Vent provides oxygen venting in dry pipe fire sprinkler systems. As a fire sprinkler system is filled with a continuous supply of nitrogen gas from the Tyco® Model NG-1 Nitrogen Generator, the air vent allows oxygen-rich gas to be vented from the fire sprinkler system. Over a short period of time, the TAV-D will almost completely remove oxygen from the fire sprinkler system (< 2% oxygen). The vent is also installed to provide source gas when used in conjunction with the Tyco® TSGA SMART Gas Analyzer. There are two Tyco® air vent models available — the TAV-D and also the TSV-D. Both units operate as described above, but the TSV-D model includes an electronic solenoid valve wired to a control panel that automatically closes the vent once the desired nitrogen concentration is reached. Features Can be installed directly on system risers Nitrogen gas sampling port for use with THGA or TSGA Gas Analyzers Automatic float shut-off in the event of a system trip Must be manually closed after a 14-day nitrogen fill-and-purge process Includes a failsafe back-pressure regulator Support hanger not required Benefits Reduce Corrosion Nitrogen replaces corrosion-causing oxygen. Extend Useful Life Reducing corrosion can extend the service life of a fire sprinkler system. Minimize Business Interruption System leaks due to corrosion can lead to costly downtime — reducing corrosion helps keep Systems healthy and operational.