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Sprinkler Nozzle Flow Rate

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Last modified by
on
Feb 4, 2025, 5:39:29 PM
Created by
on
Jun 6, 2018, 7:00:00 PM
`NR = ND^2 * sqrt(P)*28.925`
`(ND)"Sprinkler Nozzel Diameter"`
`(P)"Pressure at Sprinkler Head"`
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UUID
d00381a8-69bb-11e8-abb7-bc764e2038f2

The Sprinkler Nozzle Flow Rate calculator computes the flow rate for a sprinkler from the nozzle based on the nozzle diameter and pressure.

INSTRUCTIONS: Choose units and enter the following:

  • (ND) Nozzle Diameter
  • (P) Pressure at Sprinkler Head

Sprinkler Flow Rate (FR): The calculator returns the flow rate in gallons per minute.  However, this can be automatically converted to compatible units via the pull-down menu. Nozzle diameter for Nelson nozzles indicates the diameter as a multiple of 128ths of an inch.  Senninger nozzles have numbers that are 64th of an inch.


Irrigation Calculators

Reference

  • http://irrigation.wsu.edu/mobileirr/Downloads.html

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