Fire Hydrant Testing Procedures

The tests are also useful in determining the general condition of the water distribution system by detecting closed valves or wall deposits.

Fire hydrant testing procedures.

Determine outlet nozzle coefficient 5. Open flow hydrant fully c. This standard operating procedure guideline addresses programs and procedures for inspecting and maintaining hydrants. Measure record i d.

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. 1 flow hydrant 2 residual hydrant. 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. Recommended practice for fire flow testing and marking of hydrants has been revised.

All residual flow tests should include static residual and flow pressures as well as a 50 point inspection of each fire hydrant tested. Traffic and or water damage to the surrounding environment. Always remember to flow test and inspect fire hydrants annually to ensure the operation of the hydrants in your system. Take readings simultaneously after pressure at the residual hydrant has stabilized d.

These tips apply to the dry barrel hydrants commonly used on water distribution systems in the midwest. Before new lines are installed a residual fire flow is performed near the project site. Fire hydrant testing procedures shall include the following. Fire hydrants must be operated properly so adequate fire protection can consistently be provided.

Conduct the flow test a. The standard for fire flow testing and marking of fire hydrants nfpa 291 2019. When flowing hydrants consideration should be given to potential interference from. The purpose of the.

The following information on fire hydrant operation and maintenance provides insight into this process. Hydrant flow test procedures 4. The inspections shall verify the location accessibility proper mechanical operation and water flow from the hydrant. The same regulation also establishes that a flow test must be conducted every 5 years.

Hydrant flow testing hydrant flow tests are conducted to determine water availability in planning for firefighting activities fire sprinkler systems or domestic water demand. Prior to testing on private property notification must be made to the owner manager. One person at residual hydrant one at the flow hydrant b.