2019 NFPA 291 Recommended Practice - Current Edition
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  • Description

    Conduct fire flow testing and marking of hydrants using NFPA 291 -- now with the discharge formula also in metric.

    NFPA 291, Recommended Practice for Fire Flow Testing and Marking of Hydrants applies to both public and private hydrants to provide fire protection engineers, contractors, installers, and AHJs with the latest testing procedures to:

    • Determine the rate of flow available at various locations for firefighting purposes
    • Classify hydrants in accordance with their rated capacities
    • Color-code hydrants to indicate their class

    Now including both metric and imperial measurements.

    The 2019 edition of NFPA 291 adds the metric formula for discharge through circular orifices. In addition to the metric formula, the 2019 edition provides an updated table on discharge through circular orifices to provide measurable velocity pressures in the metric system.

    NFPA 291 is essential for municipal leaders and anyone responsible for fire protection and public fire safety planning -- including insurance representatives, AHJs, and system installing contractors. (Print, 24 pp., 2019)

     

    Interested in other editions of the NFPA 291? Use the drop down menu above to select the edition year you need.

  • Table of Contents (2019 Current Edition)

    NFPA® 291 Recommended Practice for Fire Flow Testing and Marking of Hydrants, 2019 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Application.
    1.4 Units.
    Chapter 2 Referenced Publications
    2.1 General.
    2.2 NFPA Publications. (Reserved)
    2.3 Other Publications.
    2.4 References for Extracts in Recommendations Sections. (Reserved)
    Chapter 3 Definitions
    3.1 General.
    3.2 NFPA Official Definitions.
    3.3 General Definitions.
    Chapter 4 Flow Testing
    4.1 Rating Pressure.
    4.2 Procedure.
    4.3 Layout of Test.
    4.4 Equipment.
    4.5 Test Procedure.
    4.6 Pitot Readings.
    4.7 Determination of Discharge.
    4.8 Use of Pumper Outlets.
    4.9 Determination of Discharge Without a Pitot.
    4.10 Calculation Results.
    4.11 Data Sheet.
    4.12 System Corrections.
    4.13 Public Hydrant Testing and Flushing.
    Chapter 5 Marking of Hydrants
    5.1 Classification of Hydrants.
    5.2 Marking of Hydrants.
    Annex A Explanatory Material
    Annex B Informational References (Reserved)
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  • Prior Editions

    2016 Edition

    Ensure adequate water supplies in a fire emergency with guidance in NFPA 291.

    NFPA 291, Recommended Practice for Fire Flow Testing and Marking of Hydrants provides fire protection engineers, contractors, installers, and AHJs with the latest testing procedures to:

    • Determine the rate of flow available at various locations for firefighting purposes
    • Classify hydrants in accordance with their rated capacities
    • Color-code hydrants to indicate their class

    Complete with provisions for the recommend testing of both public and private hydrants, the 2016 edition of NFPA 291 is essential for municipal leaders and anyone responsible for fire protection and public fire safety planning -- including insurance representatives, AHJs, and system installing contractors. (Softbound, 17 pp., 2016)

     

    Interested in other editions of the NFPA 291? Use the drop down menu above to select the edition year you need.

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  • Also in NFPA 291: Recommended Practice for Fire Flow Testing and Marking of Hydrants