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FIG 749CRBS

Pressure Vacuum Vent for Underground and Low Volume Tanks - Slip-On Style CARB Approval

Vent valve used on underground and low volume aboveground tanks for motor fueling. Vent allows tank to “breathe” during filling and discharging operations. Poppets seal vapors in the tanks 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.

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
749CRBS 600 AV 2”-3” H2O Press Pressure Vacuum Vent, w/8” H2O Vac. (Slip-on style) 1
749CRBS 1600 AV 3”-3” H2O Press Pressure Vacuum Vent, w/8” H2O Vac. (Slip-on style) (2” w/3” Reducer) 2.1