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

12 - 20

6 - 11

1-¼"

20 - 30

2.7 - 6

1-½"

30 - 50

2.7 - 7

55 - 80

2.5 - 5

2-½"

80 - 100

2 - 3

110 - 175

1.6 - 3

200 - 300

.9 - 2.1

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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