Emergency Vents

  • Male Threaded Emergency Vents

    Product SKU: 244OM

    UL Listed emergency vent (pressure relief only) used on aboveground storage tanks, as a code requirement, to help prevent the tank from becoming over-pressurized and possibly rupturing if ever exposed to fire. The vent must be used in conjunction with a “normal vent.” Correct application of this vent requires proper vent size and selection for the tank system in order to meet the specific...

  • Female Threaded Emergency Vents

    Product SKU: FIG 244O

    UL Listed emergency vent (pressure relief only) used on aboveground storage tanks, as a code requirement, to help prevent the tank from becoming over-pressurized and possibly rupturing if ever exposed to fire. The vent must be used in conjunction with a “normal vent.” Correct application of this vent requires proper vent size and selection for the tank system in order to meet the specific...

  • Adaptor for Flanged Emergency Vent

    Product SKU: FIG 244A

    Flange adaptors are welded to tank top openings in aboveground storage tanks creating a flanged emergency vent connection.

  • Companion Flange for Emergency Vent

    Product SKU: FIG 244C

    Female threads designed to convert a male threaded pipe nipple to a 150# raised face flange connection.

  • Pipe Nipple

    Product SKU: FIG 244N

    Steel pipe with male threads on one end (T.O.E) or with male threads on both ends (T.B.E).

  • Flanged Emergency Vents

    Product SKU: FIG 244OF

    UL Listed emergency vent (pressure relief only) used on aboveground storage tanks, as a code requirement, to help prevent the tank from becoming over-pressurized and possibly rupturing if ever exposed to fire. The vent must be used in conjunction with a “normal vent.” Correct application of this vent requires proper vent size and selection for the tank system in order to meet the specific...

  • Emergency Vent - Gaskets/Nuts & Bolts

    Product SKU: FIG 244F

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CARB Certification

Morrison Bros. Co. has received approval from California’s Air Resource Board for a Phase 1 Enhanced Vapor Recovery System for Protected Aboveground Storage Tanks. Click here to get started on your CARB certification!

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