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Comparison example: Hydrant ring main system

This example compares the results obtained by ePF Loop program vs a 3rd party program.

System design: 2 hydrants to operate at any one time; FH3 at 38 l/s, FH4 at 19 l/s.

Minimum operating pressure at hydrant: 3 bars

Hydrant pipe diameter and material coefficient: see results print-out below.

Change in elevation height = 2.6m (pressure gain); hydrant pumps and tank located at 2nd storey.

For ease of comparison, this example excludes equivalent length of valves and fittings.

isometric sketch of hydrant ring main system  . . .

Results Comparison: 

ePF Loop print-out results ... 

>> Application example (2-Loop ):  Two-loop pipe network flow and pressure drop analysis

>> worked example (2-Loop): Two-loop Hydrant ring main pipe pressure drop analysis

>> worked example (Series + Loop): Hydrant ring main system 

>> worked example (Series): Wet Riser system

>> worked example (Series): Water pumping main system

>> Analysis example: see Loop pipe ring main.

>> Steam pipe pressure drop example: see Pressure loss in steam pipe.