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PROTEGO®
Excellence in Safety and Environment
Fixed Roof Storage Tanks

Operational Integrity and Tank Protection

Fixed-roof storage tanks need controlled tank breathing and reliable explosion Explosão Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. safeguards for safe operation. Protection systems must handle pressure and vacuum Vácuo Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. changes, prevent flame propagation, and stabilize vapor during routine and abnormal events. Integrated concepts reduce explosion risk and support safe operation.
Fixed roof storage tank equipped with PROTEGO® safety devices and internal piping.

Highlights

Zero flashback incidents
when sized, located, and maintained per application
Higher uptime & lower losses
via correct tank breathing and explosion protection
Lifecycle confidence
with maintenance-friendly designs and global service
Compliance made simpler
with documented test data and manuals

Used Products in this Application

  • Pressure Relief Valve

    P/EB

    Explosion Group

    IIA1
    D / IIA

    Pressure Range:

    3.5 up to 210 mbar

  • Vacuum Relief Valve

    SV/E

    Explosion Group

    IIA1
    D / IIA
    C / IIB1
    C / IIB2
    C / IIB3
    B / IIB
    B / IIC

    Pressure Range:

    -2 up to -60 mbar

  • In-Line Detonation Flame Arrester

    DR/ES

    Explosion Group

    IIA1
    D / IIA
    C / IIB1
    C / IIB2
    C / IIB3

  • Floating Suction Unit

    SA/S

  • In-Line Liquid Detonation Flame Arrester

    LDA-W

    Explosion Group

    IIA1
    D / IIA
    C / IIB1
    C / IIB2
    C / IIB3
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    Two fixed roof storage tanks outfitted with PROTEGO® devices for various applications.

    Highlights

    Comprehensive Tank Protection
    ensures safety and operational integrity.
    Advanced Pressure & Vacuum Control
    stabilizes tank conditions through reliable pressure management.
    Lifecycle confidence
    with maintenance Manutenção Combination of all technical and administrative actions, including supervision actions, intended to maintain or restore a unit in working order. -friendly designs and global service.
    Flame Propagation Safeguards
    minimizes explosion hazards through integrated flame protection solutions.

    Used Products in this Application

    • Pressure/Vacuum Relief Valve

      VD/SV-HRL

      Explosion Group

      IIA1
      D / IIA

      Pressure Range:

      3.5 up to 35 mbar

      Vacuum Range:

      -2 up to -35 mbar

    • In-Line Detonation Flame Arrester

      DR/ES

      Explosion Group

      IIA1
      D / IIA
      C / IIB1
      C / IIB2
      C / IIB3

    • In-Line Liquid Detonation Flame Arrester

      LDA-W

      Explosion Group

      IIA1
      D / IIA
      C / IIB1
      C / IIB2
      C / IIB3

    • Pressure and Vacuum Relief Valve, In-Line

      DV/ZT

      Pressure Range:

      -2 up to -60 mbar

      Vacuum Range:

      2 up to 60 mbar

    • Pressure and Vacuum Relief Valve, In-Line

      DV/ZW

      Pressure Range:

      2 up to 60 mbar

      Vacuum Range:

      -3.5 up to -50 mbar

    • Pressure/Vacuum Diaphragm Valve

      UB/SF

      Explosion Group

      D / IIA
      C / IIB1
      C / IIB2
      C / IIB3

      Pressure Range:

      -3.5 up to -35 mbar

      Vacuum Range:

      3.5 up to 140 mbar
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      Engineered venting and explosion safeguards

      Fixed-roof tanks for flammable liquids need coordinated protection during normal breathing, filling, emptying, and emergencies. Combining pressure and vacuum protection with vapor displacement and explosion prevention maintains stable conditions and safeguards against deviations.

      Two fixed roof storage tanks outfitted with PROTEGO® devices for various applications.
      Two fixed roof storage tanks outfitted with PROTEGO® devices for various applications.

      Protection of Fixed-Roof Storage Tanks for Non-Flammable Liquids

      For tanks storing non-flammable liquids, reliable pressure and vacuum control remains essential to preserve structural integrity and operational reliability. 

      In these applications, protection systems focus on managing normal breathing and emergency pressure relief to protect the tank during abnormal pressure conditions without the need for flame arrestor components. 

      Highlights

      Compliance 
      with documented testing and approvals
      Emissions reduction
      via correct tank breathing
      Safeguarding
      against potential explosions
      Optimal product selection
      at early FEED stage

      Used Products in this Applications

      • Pressure/Vacuum Diaphragm Valve

        UB/SF

        Explosion Group

        D / IIA
        C / IIB1
        C / IIB2
        C / IIB3

        Pressure Range:

        -3.5 up to -35 mbar

        Vacuum Range:

        3.5 up to 140 mbar

      • Pressure/Vacuum Relief Valve

        VD/TS

        Explosion Group

        IIA1
        D / IIA
        C / IIB1
        C / IIB2
        C / IIB3

        Pressure Range:

        3.5 up to 50 mbar

        Vacuum Range:

        -2 up to -25 mbar

      • In-Line Detonation Flame Arrester

        DR/ES

        Explosion Group

        IIA1
        D / IIA
        C / IIB1
        C / IIB2
        C / IIB3

      • Pressure and Vacuum Relief Valve, In-Line

        DV/ZT

        Pressure Range:

        -2 up to -60 mbar

        Vacuum Range:

        2 up to 60 mbar

      • Pressure and Vacuum Relief Valve

        VD/SV

        Pressure Range:

        2 up to 60 mbar

        Vacuum Range:

        -2 up to -60 mbar

      • Liquid Detonation Flame Arrester

        LDA-F

        Explosion Group

        IIA1
        D / IIA
        C / IIB1
        C / IIB2
        C / IIB3

      • Emergency pressure relief valve

        ER/V

        Pressure Range:

        5 up to 40 mbar

        PROTEGO® breather valves, after evaluation, have been added to the approved vendors list within Shell Global Solutions (US). This list, also know as the SMFL (Suggested Manufacturers and Fabricators List), is used by our Refineries, Chemical Plants, and Capital Projects Group in the United States. 

        Technical Safety Specialist 

        Shell Global Solutions

        Your current location:
        Local
        Picture of Mrs. Auris-Nadine Hillen
        Mrs. Auris-Nadine Hillen

        CSR Department

        +49 (0)5307 809 108