The patented Safe-T-Vent™ connects a properly designed venting system to the cabinet using 2-inch nominal NPT Schedule 40 steel pipe.
Justrite Thermally-Actuated Damper for Venting Cabinets, 2" Connection, Safe-T-Vent™, Stainless Steel/Brass, 25777 In addition, its heavy duty stainless steel construction reduces heat transfer and provides frictional spark resistance as required for hazardous locations while brass bushings and washer reduce friction and ensure reliable valve actuation. Reversible design eliminates installation errors-damper blocks ventilation’s flow in either direction. FM-approved for use in conjunction with a Justrite safety cabinet, Safe-T-Vent is a safe, reliable, and compliant way to ventilate a safety cabinet and still maintain the cabinet’s performance in a fire. This protects the cabinet and its contents by stopping the flow of air through the cabinet vents.