Morrison Bros Fig. 351S & 748A Flame Arrester/Pressure Vacuum Vent Item Numbers:351S--0300 AV • Vents outward and upward

• Vents outward and upward in compliance with NFPA 30 • Tri-polar mounting screws for mounting exhaust hood in any of three positions • Optional dryer connections accommodate the installation of desiccant dryers on vacuum connection • Optional pressure discharge hood facilitates piping pressure relief to desired discharge point

normally closed contact 1 Number of outputs

Tank truck emergency valves provide a safe means of flow control of in the outlet of tank truck compartments

23” of float height adjustment

integral relief valve

Morrison Bros Fig. 351S & 748A Flame Arrester/Pressure Vacuum Vent Item Numbers:351S--0300 AV • Vents outward and upwardItem Series: Morrison Bros Fig. 351S & 748A Flame Arrester Pressure Vacuum Vent Downloadable Resources: FIG 351S & FIG 748A SPECIFICATION SHEET Product Ordering Information: Products Description & Features: Description: Flame arresters provide a positive barrier that keeps flames from passing through the pressure vacuum vent line into a storage tanks vapor space. WARNING: Do not use with acetylene, carbon disulfide, Ethelene oxide or hydrogen gases.