Description High Flow Emergency Vent provides significant SCFH airflow relief when required. Flanged style eliminates the potential for cross threading during installation. Bolts, nuts, gaskets and flanged adaptor can be purchased at additional cost. Standard Features – UL US & Canada Listed – Buna N 0 Ring – provides vapor resistant seal – Spring Actuated-assures accurate opening pressure – All Aluminum Construction-lightweight for easy handling and installation. – Also, no rust issues from scratches or weathering – Pressure relief set at 0.5 PSI – Bolt pattern conforms to ANSI B16.5 specifications
