Morrison Bros 749—0100 AV 2” Threaded Pressure Vacuum Vent is installed on the top of underground and low volume aboveground storage tank vent pipes. Vent allows tank to “breathe” during filling and discharging operations. Pressure and vacuum poppets seal vapors in tank when pressure is equalized.

Features

• Pressure Setting: 8.0 oz
• Vacuum Setting: 0.50 oz
• Venting Capacity (SCFH): 6200 @ 20oz./in.sq
• Height: 4.33
• Screen protects the vent line from debris and insects
• Water-resistant rain cap diverts water away from the vent line
• Internal drain channels water penetration out through weep hole
• Directs vapors outward and upward in compliance with NFPA 30
• Conserves fuel
• Certified SCFH ratings
• Settings are approximate
• Body Material: Aluminum
• Pressure poppet material: Aluminum
• Adaptor material: Aluminum
• Vacuum poppet material: Brass
• Pipe seal material: Buna-N
• Screen material: 40 mesh brass