2023 NFPA 22 Standard - Current Edition
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  • Description

    Help improve building safety by complying with requirements for water tanks that supply private fire protection systems.

    NFPA® 22, Standard for Water Tanks for Private Fire Protection, offers comprehensive provisions for the design, construction, installation, and maintenance of private fire protection tanks and accessory equipment. The 2023 edition features extensive revisions to improve usability and modernize the standard.

    Notable changes include:

    • Removal of redundant sections to provide clarity
    • Revised sections related to external loads, such as wind, snow, and live load requirements, to recognize other standards, and to replace outdated design approaches
    • Updated tank sizing requirements to ensure the consideration of pump suction pressure when designing water tanks
    • Amended water tank construction features to align with newly referenced standards and recognition of other applicable standards
    • Incorporation of additional valve requirements to improve maintainability
    • Inclusion of fill line and suction pipe separation distances to prevent cavitation in the fire pump
    • Editorial corrections, such as unit conversions, where applicable
    • References updated to the latest applicable codes and standards
  • Table of Contents (2023 Current Edition)

    NFPA® 22 Standard for Water Tanks for Private Fire Protection, 2023 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Retroactivity.
    1.4 Equivalency.
    1.5 Types of Tanks.
    1.6 Units.
    1.7 New Technology.
    Chapter 2 Referenced Publications
    2.1 General.
    2.2 NFPA Publications.
    2.3 Other Publications.
    2.4 References for Extracts in Mandatory Sections. (Reserved)
    Chapter 3 Definitions
    3.1 General.
    3.2 NFPA Official Definitions.
    3.3 General Definitions.
    Chapter 4 General Information
    4.1 Capacity and Elevation.
    4.2 Water Sources.
    4.3 Location of Tanks.
    4.4 Tank Materials.
    4.5 Workmanship.
    4.6 Plans.
    4.7 Tank Contractor Responsibility.
    4.8 Attachments to Tank Structures.
    4.9 Lightning Protection.
    4.10 Strength.
    4.11 National Standards.
    4.12 Loads.
    4.13 Welding.
    4.14 Roofs.
    4.15 Roof Vent.
    4.16 Test Reports.
    Chapter 5 Welded-Carbon Steel and Composite Concrete and Carbon Steel Gravity Tanks and Suction Tanks
    5.1 General.
    5.2 Materials.
    5.3 Preventing Ice Damage.
    5.4 Corrosion Protection for Bottom Plates on Soil or Concrete.
    5.5 Painting Inaccessible Areas.
    5.6 Painting and Corrosion Protection.
    5.7 Painting Application.
    5.8 Heavy Metals.
    Chapter 6 Factory-Coated, Bolted Carbon Steel Tanks
    6.1 General.
    6.2 Materials, Fabrication, and Installation.
    6.3 Corrosion Protection.
    6.4 Structural Shapes.
    Chapter 7 Pressure Tanks
    7.1 General.
    7.2 Pipe Connections and Fittings.
    Chapter 8 Wood Gravity Tanks and Suction Tanks
    8.1 General.
    8.2 Material.
    8.3 Unit Stresses.
    8.4 Details of Design.
    8.5 Workmanship.
    8.6 Accessories.
    Chapter 9 Embankment-Supported Coated Fabric Suction Tanks
    9.1 General.
    9.2 Standard Capacities.
    9.3 Materials.
    9.4 Embankment Preparation and Tank Installation Procedure.
    9.5 Tank Sump and Support for Bottom Fittings.
    9.6 Pipe Connections and Fittings.
    Chapter 10 Concrete Gravity Tanks and Suction Tanks
    10.1 General.
    10.2 Prestressed Tanks.
    10.3 Standard Capacities.
    10.4 Earthquake Load.
    10.5 Wall Treatments.
    Chapter 11 Fiberglass-Reinforced Plastic Tanks
    11.1 General.
    11.2 Application.
    11.3 Tank Specification.
    11.4 Monolithic Tanks.
    11.5 Protection of Buried Tanks.
    11.6 Protection of Aboveground Tanks.
    11.7 Tank Connections.
    Chapter 12 Tank and Tower Foundations in the Ground
    12.1 Concrete Specifications.
    12.2 Suction Tank Foundations.
    12.3 Foundation Piers for Elevated Tanks.
    12.4 Anchorage.
    12.5 Grouting.
    12.6 Soil-Bearing Pressures.
    Chapter 13 Steel Tank Towers
    13.1 General.
    13.2 Materials.
    13.3 Loads.
    13.4 Unit Stresses.
    13.5 Details of Design.
    13.6 Workmanship.
    13.7 Accessories.
    Chapter 14 Pipe Connections and Fittings
    14.1 General Information.
    14.2 Discharge Pipe.
    14.3 Expansion Joint.
    14.4 Filling.
    14.5 Break Tanks.
    14.6 Overflow.
    14.7 Clean-Out and Drain.
    14.8 Connections for Other Than Fire Protection.
    14.9 Sensors.
    Chapter 15 Valve Enclosures and Frost Protection
    15.1 Valve Pit or House and Heater House.
    15.2 Frostproof Casing.
    Chapter 16 Tank Heating
    16.1 General.
    16.2 Heating Requirements.
    16.3 Heating Systems.
    16.4 Tank Insulation.
    16.5 Heating for Embankment-Supported Coated Fabric Suction Tanks.
    Chapter 17 Acceptance Test Requirements
    17.1 Inspection of Completed Equipment.
    17.2 Testing.
    17.3 Welded Steel Tanks.
    17.4 Bolted Steel Tanks.
    17.5 Pressure Tanks.
    17.6 Embankment-Supported Coated Fabric Tanks.
    17.7 Concrete Tanks.
    17.8 Wood Tanks.
    17.9 Fiberglass-Reinforced Plastic Tanks — Hydrostatic Test.
    17.10 Disposal of Test Water.
    17.11 Anti-Vortex Plate Inspection.
    Chapter 18 Inspection, Testing, and Maintenance of Water Tanks
    18.1 General.
    Annex A Explanatory Material
    Annex B Typical Installations
    Annex C Informational References
  • Prior Editions

    2018 Edition

    Stay up-to-code with new NFPA 22 for adequate water supply in private fire protection systems.

    The 2018 edition of NFPA 22, Standard for Water Tanks for Private Fire Protection is your source for up-to-date requirements for the design, construction, installation and maintenance of tanks and accessory equipment that supply water for private fire protection.

    Significant revisions in this clarified and streamlined edition:

    • Chapter 5 entitled "Welded-Carbon Steel and Composite Concrete and Carbon Steel Gravity Tanks and Suction Tanks" is updated to retain requirements specific to fire protection, while all duplicate requirements in the AWWA D100 standard have been removed and references to AWWA D100 added instead.
    • Chapter 6 entitled "Factory-Coated, Bolted Carbon Steel Tanks" updated to retain requirements specific to fire protection, while all duplicate requirements in the AWWA D103 standard have been removed and references to AWWA D103 added instead.
    • Chapter 14 entitled "Pipe Connections and Fittings," includes clarified requirements for check valves in the discharge pipe of a suction tank, and modifications that require tank repairs to follow the impariment procedures in NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-based Fire Protection Systems.
    • Chapter 16 entitled "Tank Heating" presents new criteria for electric immersion heaters. In addition, calculations to determine tank heating needs replace the lowest one-day mean temperature map.

    This new edition is essential for manufacturers, fire protection engineers, installers, maintenance professionals, Authorities Having Jurisdiction, and property owners. (Print, 96 pp., 2018)


    2013 Edition

    Update now! Insist on the 2013 edition of NFPA 22 for adequate water supply in private fire protection systems.

    The 2013 NFPA 22: Standard for Water Tanks for Private Fire Protection provides the industry's most up-to-date requirements for the design, construction, installation and maintenance of tanks and accessory equipment that supply water for private fire protection, including foundations, towers, pipe connections and fittings, and valve enclosures.

    Only this edition provides the Standard's first definition for "suction tank" along with other significant revisions:

    • Updated Table 5.4 correlates with ANSI/AWWA D100-11, Standard for Welded Carbon Steel Tanks for Water Storage.
    • Clarified roof hatch and ladder requirements
    • Clarified pressure tank design requirements plus Annex language with additional guidance
    • User-friendly anti-vortex plate requirements clarify the use of a long radius elbow as well as its use on all suction tanks. Updated figure accompanies text.
    • A new section on break tanks provides design guidance.

    This updated edition is essential for manufacturers, fire protection engineers, installers, maintenance professionals, AHJs, and property owners. (Softbound, 88 pp., 2013)

     

    Interested in other editions of NFPA 22? Use the drop down menu above to select the edition year you need.

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  • Also in NFPA 22: Standard for Water Tanks for Private Fire Protection