Description
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 poppets seal vapors in tank when pressure is equalized.
Settings are approximate.
Features and Details
• Screen protects the tank from debris and insects
• Integrated internal drain port channels water away from the tank
• Vent vapors up and outward per NFPA 30
• Conserves fuel
• Certified SCFH ratings
Materials of Construction
• Body and hood… anodized aluminum (749T—is PTFE coated
aluminum)
• Pressure poppet… anodized aluminum (749T—is HDPE)
• Vacuum poppet… brass vacuum (749T—is stainless steel)
• Body seal… Buna-N (749T—is FKM)
• Screen… 40 mesh stainless steel
• Springs… stainless steel
• Set screws… Zinc-plated steel (749T—is Nylon)
Certifications and Listings
CARB 95-14 (749CRB0500 model); CARB 95-15 (749CRB0600 model);
CARB 96-19 (749CRBS0600 model); 749CRB Pressure Vacuum Vents (models
749CRB0600 AV, 749CRB1600 AV, 749CRBS0600 AV and 749CRBS1600 AV),
meet the requirements of EPA 40 CFR part 63 for Gasoline Dispensing Facilities
WARNING: DO NOT FILL OR UNLOAD FUEL FROM A STORAGE TANK UNLESS IT IS CERTAIN THAT THE TANK VENTS WILL OPERAT
