Pressure Vacuum Vent for Underground and Low Volume Tanks - NPT CARB Approval

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.

WARNING: This vent must only be used in conjunction with motor fueling and/or low capacity flow. Fluid handling in lines larger than that used for retail service stations can cause tank to rupture or implode.

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Product Features Ordering Instructions Related Products

PRODUCT RESOURCES

FIG 749 Specification Sheet FIG 749 Installation Instructions

Product Features

Construction Details

Body: Aluminum
Pressure Poppet: Aluminum
Vacuum Poppet: Brass
Pipe Seal: Buna-N
Screen: Brass

Certifications & 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

Product Ordering Instructions

Fig	Suffix	Size	Description	Weight
749CRB	0500 AV	2”-8oz.sq.in.	Pressure Vacuum Vent	1.45
749CRB	0600 AV	2”-3” H20 Press	Pressure Vacuum Vent	1.45
749CRB	1500 AV	3”-8oz.sq.in.	Pressure Vacuum Vent (2” w/3” Reducer)	1.65
749CRB	1600 AV	3”-3” H20 Press	Pressure Vacuum Vent (2” w/3” Reducer)	1.65
749CRBS	0600 AV	2”-3” H20 Press	Pressure Vacuum Vent, BSP Threads	1.45
749CRBS	1600 AV	3”-3” H20 Press	Pressure Vacuum Vent	1.95