Emergency Vent Flanged, Bolt-On (370)


Eliminates the need for pipe nipple on installation. Hole patterns conforms to ANSI B16.5 specifications. Machined base and top with Buna N “O” Ring provides vapor tight seal. Air flow at 2.5 psi is 324,426 SCFH for the 8” and 483,340 SCFH for the 10”, both with screens.

  • Made in USA

  • UL Listed

  • ULC Listed

    • Recommended Accessories:

    AST Overfill Prevention Valve
    AST Spill Containment Box
    PEI Free Flow Vents
    AST Audible Alarm