Hydrant Flow Calculator Spreadsheet

Residual pressure pressure hydrant.

Hydrant flow calculator spreadsheet. Fireflow and hydrant analysis determines the hydrant flow at a specified residual pressure and creates printable fire flow graphs and hydrant reports. Fire flow test calculator xlsx. Sample flow test results static pressure sp 70 residual pressure rp 40. Slowhy cbse flow hydrant.

Hydrant flow testing at the test hydrant 6. This calculator is based on established hazen williams formulas and is provided for convenience and estimation purposes only. Hydrant com specializes in fire flow testing for private residential and government. The hydrant flow test calculator measures the rated capacity at 20 psi of a fire hydrant.

For more information see nfpa 291 awwa m 17 or our web page on hydrant flow testing. Tris can used to acoaunt for the amount of water used during the flow test. The rated capacity calculation is useful in determining the total water supply at a given point in the hydrant or water main. The calculation offers more useful information than the test flow by itself and is used by insurance underwriters.

All residual flow tests should include static residual and flow pressures as well as a 50 point inspection of each fire hydrant tested. Fire hydrant flow test results calculator. Close the hydrant qemove gauge. Projected available flows calculated at 20 psi residual or the static pressure for low pressure hydrants having static pressures of less than 40 psi.

Therefore it is not necessary to include hydrants in your model to calculate fire flows since junctions can be used instead. This spreadsheet may be downloaded to calculate the results of fire hydrant flow tests. Final results must be verified before using in actual calculations about contact terms of. If a fire hose with a pump is connected to hydrant 1 and the pump turned on drawing water out of the hydrant the effect of drawing water out of the hydrant will cause the pressure at hydrant 2 to drop.

Gallons per minute is measured by a diffuser with a pitot and a gpm gauge while the hydrant is flowing. The rated capacity calculation is useful in determining the total water supply at a given point in the hydrant or water main. Hydrant 1. Remove test equipment hydrant replace and tighten cap.

All hydrants are assumed to provide at least 20 psi. Always remember to flow test and inspect fire hydrants annually to ensure the operation of the hydrants in your system. If the hydrant dry barrel type note that water drains property from the s the number of minutes that water was yawing. The flow rate qdof 2432 gpm is higher than the measured value qrof 1710 gpm.

Nfpa and awwa predicted flow of any fire hydrant is based on the rated capacity at 20 psi. Kypipe allows fire flow calculations to be made at hydrants junctions or both. Flow test calculate and save flow tests on hydrants to determine water availability project name. The calculation offers more useful information than the test flow by itself and is used by insurance underwriters.