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NFPA 24, Standard for the Installation of Private Fire Service Mains and Their Appurtenances

2022 NFPA 24 Standard - Current Edition
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  • Description

    Help ensure water supplies are prepared for fire risks and hazards with NFPA 24, Standard for the Installation of Private Fire Service Mains and Their Appurtenances.

    Fire protection system designers, authorities having jurisdiction (AHJs), and other personnel can use the 2022 edition of NFPA 24, Standard for the Installation of Private Fire Service Mains and Their Appurtenances, to stay up to date with the latest requirements governing private fire service mains and private fire hydrants.

    Help keep people and property safe with this essential resource for fire protection planning.

    This critical standard covers location and identification of department connections, protection of fire service mains, and valves controlling water supplies. The criteria in NFPA 24, Standard for the Installation of Private Fire Service Mains and Their Appurtenances, also addresses underground fire service mains and related equipment, yard piping that feeds automatic sprinkler systems, yard hydrants, standpipes, and other water-based systems.

    The 2022 edition of NFPA 24, Standard for the Installation of Private Fire Service Mains and Their Appurtenances, includes the following updates:

    • An item was added to the standard's scope that NFPA 24 does not apply to dry fire hydrants used for drafting.
    • In Chapter 5, a requirement was added to clarify that a single fire department connection can supply multiple buildings where approved by the AHJ.
    • In Chapter 6, alternate distance criteria were added for post indicator valves and backflow preventors.
    • In Chapter 10, a new section was added to clarify that the flush rates of NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection, need to be used where a fire pump is connected to the water supply.
    • A new section was added to provide an alternate cleaning procedure in place of traditional flushing.
    • New annex material was added to help determine ice thickness where water is taken from a source exposed to freezing conditions.

    Enhance water-based fire protection by ordering the latest edition of NFPA 24, Standard for the Installation of Private Fire Service Mains and Their Appurtenances. (Print, 56 pp., 2022)

  • Table of Contents (2022 Current Edition)

    NFPA® 24 Standard for the Installation of Private Fire Service Mains and Their Appurtenances, 2022 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Retroactivity.
    1.4 Equivalency.
    1.5 Units.
    Chapter 2 Referenced Publications
    2.1 General.
    2.2 NFPA Publications.
    2.3 Other Publications.
    2.4 References for Extracts in Mandatory Sections.
    Chapter 3 Definitions
    3.1 General.
    3.2 NFPA Official Definitions.
    3.3 General Definitions.
    3.4 Hydrant Definitions.
    Chapter 4 General Requirements
    4.1 Plans.
    4.2 Installation Work.
    Chapter 5 Water Supplies
    5.1 Connection to Waterworks Systems.
    5.2 Size of Fire Mains.
    5.3 Pressure-Regulating Devices and Meters.
    5.4 Connection from Waterworks Systems.
    5.5 Connections to Public Water Systems.
    5.6 Pumps.
    5.7 Tanks.
    5.8 Penstocks, Rivers, Lakes, or Reservoirs.
    5.9 Remote Fire Department Connections.
    Chapter 6 Water Supply Connections
    6.1 Valves.
    6.2 Connections to Water Supplies.
    6.3 Post Indicator Valves.
    6.4 Valves in Pits.
    6.5 Backflow Prevention Assemblies.
    6.6 Sectional Valves.
    6.7 Identifying and Securing Valves.
    6.8 Check Valves.
    Chapter 7 Hydrants
    7.1 General.
    7.2 Number and Location.
    7.3 Installation.
    Chapter 8 Hose Houses and Equipment
    8.1 General.
    8.2 Location.
    8.3 Construction.
    8.4 Size and Arrangement.
    8.5 Marking.
    8.6 General Equipment.
    8.7 Domestic Service Use Prohibited.
    Chapter 9 Master Streams
    9.1 Master Streams.
    9.2 Application and Special Situations.
    Chapter 10 Underground Requirements
    10.1 Piping.
    10.2 Fittings.
    10.3 Connection of Pipe, Fittings, and Appurtenances.
    10.4 Protection of Private Fire Service Mains.
    10.5 Grounding and Bonding.
    10.6 Restraint.
    10.7 Steep Grades.
    10.8 Installation Requirements.
    10.9 Backfilling.
    10.10 Testing and Acceptance.
    Chapter 11 Hydraulic Calculations
    11.1 Hydraulic Calculation Procedures.
    11.2 Calculations in U.S. Customary Units.
    11.3 Calculations in SI Units.
    Chapter 12 Aboveground Pipe and Fittings
    12.1 General.
    12.2 Protection of Piping.
    Chapter 13 Sizes of Aboveground and Buried Pipe
    13.1 Private Service Mains.
    13.2 Mains Not Supplying Hydrants.
    13.3 Mains Supplying Fire Protection Systems.
    Chapter 14 System Inspection, Testing, and Maintenance
    14.1 General.
    Annex A Explanatory Material
    Annex B Valve Supervision Issues
    Annex C Recommended Practice for Water Flow Testing
    Annex D Recommended Practice for Marking of Hydrants
    Annex E Informational References
  • How the NFPA Handbooks Differ from Codes and Standards

    THE NFPA HANDBOOKS DIFFER FROM CODES AND STANDARDS

    Ever wonder what the difference is between an NFPA® handbook and a code or standard? We’re glad you asked.

    NFPA codes and standards both provide requirements for achieving outcomes. Handbooks take a deeper dive, providing the full text of a code or standard as well as expert commentary and features such as graphics, decision trees, testing procedures, case studies, sample forms and checklists, and other helpful aids to give a better understanding of the reasoning behind the requirements and how to apply them.

    JUST REMEMBER:

    • A code or standard is a framework—a set of rules to follow with a goal to achieve a certain result
    • A handbook is a connector—linking requirements to application by helping you understand the reasoning behind a code or standard

    The simplest way to think about it is that codes and standards list the technical requirements while handbooks explain those requirements to clarify how to apply them.

  • Prior Editions

    2019 Edition

    Improve water-based fire protection effectiveness with the new NFPA 24.

    A must-have resource for everyone from fire protection system designers to authorities having jurisdiction (AHJs), NFPA 24, Installation of Private Fire Service Mains and Their Appurtenances presents comprehensive requirements governing private fire service mains and private fire hydrants.

    NFPA 24 is a vital element of every fire protection plan.

    This critical Standard covers location and identification of department connections, protection of fire service mains, and valves controlling water supplies. NFPA 24's criteria also addresses underground fire service mains and related equipment, yard piping that feeds automatic sprinkler systems, yard hydrants, standpipes, and other water-based systems.

    The 2019 edition includes:

    • Changes related to trenching and backfill
    • First-time acceptance testing requirements for aboveground piping
    • Revisions that clarify the limited use of steel piping for underground service

    Make sure water supplies are ready when needed with the latest edition of NFPA 24. (Print, 62 pp., 2019)

    2016 Edition

    For everyone from designers to Authorities Having Jurisdiction (AHJs), the latest edition of NFPA 24 is a must-have resource.

    An essential Standard for effective water-based fire protection, NFPA 24,Installation of Private Fire Service Mains and Their Appurtenances presents comprehensive requirements governing private fire service mains and private fire hydrants.

    Reference the 2016 NFPA 24 for the latest information on location and identification of department connections, protection of fire service mains, and valves controlling water supplies. NFPA 24's criteria also addresses underground fire service mains and related equipment, yard piping that feeds automatic sprinkler systems, yard hydrants, standpipes, and other water-based systems.

    To help you improve water-based fire protection effectiveness, the 2016 NFPA 24 was rewritten with a more user-friendly structure. Technical changes include:

    • Clarified valve arrangement requirements and added Annex figures are consistent with NFPA 13.
    • Revised Section 6.1 helps users identify the permitted exceptions to indicating valves, and also now permits non-listed tapping sleeve and valve assemblies in connections to municipal water supplies.
    • An added statement allows underground fittings to be used aboveground to transition to aboveground piping.
    • Because steel pipe is required to be listed other than in the Fire Department Connection (FDC) line, steel underground piping references were removed from the table in Chapter 10.

    Make sure water supplies are ready when needed. Don't overlook this vital element of your fire protection plan. (Softbound, 54 pp., 2016)

     

    Interested in other editions of NFPA 24? Use the drop down menu above to select the edition year you need.

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  • Historical Editions

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