Model AAV Automatic Air Venthttp://www.teknoyangin.com.tr/blog/342020-01-13T12:34:59ZModel AAV Automatic Air Venthttp://www.teknoyangin.com.tr/blog/model-aav-automatic-air-vent-34/post/model-aav-automatic-air-vent-34Doğan ÜstündağModel AAV Automatic Air Vent ** Reduce Corrosion in Wet Pipe Sprinkler Systems Meets the requirement of NFPA 13 for a high point air vent on wet pipe sprinkler systems Designed, built, and tested by R...2020-01-13T12:34:59Z