Morrison Bros. 3 in. 749 Series Pressure Vacuum Vents - 8 oz/sq inch

Pressure vacuum vents are 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 poppet seal vapors in tank when pressure is equalized.

Note: Vacuum Setting 0.5 oz / sq. inch

Features

• Screen protects the tank from debris and insects
• Integrated internal drain hole sheds water out and away from entering the tank
• Vents vapors out and upward per NFPA 30
• Conserves fuel
• Threaded connection
• Vacuum Setting (oz/in²): 0.5
• Venting Capacity (CFH) (@ 2.5 PSI): 8500

Construction Details:

• Body: Aluminum
• Pressure poppet: Aluminum
• Adaptor: Aluminum
• Vacuum poppet: Brass
• Pipe seal: Nitrile Rubber
• Screen: 40 mesh brass

Certifications

• Certified CFH ratings
• CARB 95-14 (749CRB0500 model) or 95-15 (749CRB0600 model)
• CARB 96-20 (749CRBS0500 model) or 96-19 (749CRBS0600 model)