I n s t r u c t i o n s.
Water flow test calculator.
Gallons per minute is measured by a diffuser with a pitot and a gpm gauge while the hydrant is flowing.
This application has auto adjusting axis divisions and automatically calculates avaliable flow or pressure at a single point.
The flow rate calculator can also calculate the mass flow rate of liquids given the liquid density is known.
Secondary psi while flowing.
Quickly determine you water supply capabilities with our on line application for graphing fire hydrant flow test information on a logritmic graph n 1 85.
Unlike other calculators you are not confined to inputting diameter in inches velocity in miles per hour etc.
The main can be expected to flow about.
This ultra calculator is special by allowing you to choose among a great variety of units 6 for diameter and 24 each for velocity and flow rate.
Input and output support metric and imperial.
The following formula is used by this calculator to populate.
Easily calculate the volumetric flow rate of a pipe a k a.
American water works association awwa 2 defines the required fire flow as the rate of water flow at a residual pressure of 20 psi and for a specified duration that is necessary to control a major fire in a specific structure each fire flow methodology may define the objective of the required fire flow differently.
This calculator may also be used to determine the appropriate pipe diameter required to achieve a desired velocity and flow rate.
Residual pressure is measured from the same cap gauge while water is flowing.
All hydrants are assumed to provide at least 20 psi.
Nfpa and awwa predicted flow of any fire hydrant is based on the rated capacity at 20 psi.
Making this calculator quite versatile.
A fire hydrant flow test is a process of flowing water out of at least one fire hydrant while obtaining the required pressures static residual and pitot needed to calculate the amount of water in gallons per minute gpm that the water system is capable of providing between the tested hydrants.
The calculation offers more useful information than the test flow by itself and is used by insurance underwriters.
Gpm from the test outlet.
All you need for the test is a measuring jug and a timer.
Secondary psi before flowing.
With this diameter velocity and flow rate calculator you can determine the exact flow rate or velocity at which water will flow through any given pipe.
Projected available hydrant flow.
Our interactive flow calculator will do the hard work of working out if you have issues with your water.
Sample flow test results.
Take the test now.
