FM approved vents are for use with drums in the horizontal (pouring) position. Automatically relieves pres- sure at 5 PSI. Flame arrestor protects contents. Manual vacuum relief by lifting and rotating valve stem. Maximum flow of 220 CFM at 20 PSI. Fits 2" NPS bung in steel and plastic drums. Use brass vent for petroleum based applications. Use stainless steel vent for corrosives and general solvents.

DA604 Brass Vent
DA608 Stainless Steel Vent