The Betts 3338ALV PAV 125 Vent is rated at 10,000 cubic feet of air per hour at 5 psig, designed to provide pressure-actuated emergency venting as required by DOT MC-306, NFPA No. 385, and No. 407. This model can be installed from the tank exterior in devices such as manhole covers or pipe caps, and has been flow tested and marked in accordance with DOT MC-306 Par. 178.341-4(e), NFPA 385 Par. 2263, and NFPA 407 Par. 616.
- Material: Aluminum
- Set Pressure: 5 psig
- Flow Rating: 10,000 CFH air at 5 psig
- Standards: DOT MC-306, NFPA 385, NFPA 407
- Mount Style: Tank Exterior (manhole cover or pipe cap)




