Pipe Sizing : GPM & Pressure Loss

  • Pipe Size
  • 5' - 7' FPS GPM Range
  • Pressure (PSI) Loss Per 100'
  • ½"
  • 5 - 7
  • 11 - 15
  • ¾"
  • 8 - 11
  • 6 - 9
  • 1"
  • 12 - 20
  • 6 - 11
  • 1-¼"
  • 20 - 30
  • 2.7 - 6
  • 1-½"
  • 30 - 50
  • 2.7 - 7
  • 2"
  • 55 - 80
  • 2.5 - 5
  • 2-½"
  • 80 - 100
  • 2 - 3
  • 3"
  • 110 - 175
  • 1.6 - 3
  • 4"
  • 200 - 300
  • .9 - 2.1
  • 6"
  • 450 - 650
  • .6 - 1.18
  • Equivalent Losses
  • 90° Elbow
  • 20'
  • 45° Elbow
  • 12'
  • Branch Tee
  • 15'
  • Gate Valve (open)
  • 15'
  • Ball Valve (open)
  • 25'
  • Quick Disconnect (open)
  • 35'
  • Hose Barb
  • 10'

For more information about pipe sizing for water distriibution
call the Advantage Sales Department at 317-887-0729.

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