Fire Hydrant Testing Procedures

This procedure provides guidance for the inspection and maintenance of the fire hydrant system in the city and to improve the working relationship with the city water and system.

Fire hydrant testing procedures.

Determine outlet nozzle coefficient 5. Take readings simultaneously after pressure at the residual hydrant has stabilized d. The tests are also useful in determining the general condition of the water distribution system by detecting closed valves or wall deposits. Recommended practice for fire flow testing and marking of hydrants has been revised.

The same regulation also establishes that a flow test must be conducted every 5 years. The current edition which replaces and supersedes the 2016 version of the standard is distinguished by including the metric formula for discharge through circular orifices. Open flow hydrant fully c. The purpose of the.

All residual flow tests should include static residual and flow pressures as well as a 50 point inspection of each fire hydrant tested. This standard operating procedure guideline addresses programs and procedures for inspecting and maintaining hydrants. Conduct the flow test a. 1 flow hydrant 2 residual hydrant.

Hydrant flow testing hydrant flow tests are conducted to determine water availability in planning for firefighting activities fire sprinkler systems or domestic water demand. Traffic and or water damage to the surrounding environment. Measure record i d. Always remember to flow test and inspect fire hydrants annually to ensure the operation of the hydrants in your system.

The standard for fire flow testing and marking of fire hydrants nfpa 291 2019. Hydrant flow test procedures 4. Spectrum fire protection provides professional fire hydrant testing service in accordance with nfpa 291 this code establishes that all fire hydrants must be inspected and tested at least annually. Fire hydrant management goals the inspection testing and maintenance of tammany utilities tu fire hydrants is critical to determining the readiness of the hydrants to provide water at fire emergencies.

When flowing hydrants consideration should be given to potential interference from. Test fire flow testing nfpa ratings color flow rating blue 1500 gpm very good green 1000 1499 gpm good orange 500 999 gpm marginally adequate red below 500 inadequate involves a minimum of two hydrants on any test. Prior to testing on private property notification must be made to the owner manager. Before new lines are installed a residual fire flow is performed near the project site.

These tips apply to the dry barrel hydrants commonly used on water distribution systems in the midwest. Fire hydrants must be operated properly so adequate fire protection can consistently be provided. The following information on fire hydrant operation and maintenance provides insight into this process.