Pressure Drop in HosesUpdated 37 minutes ago
Pressure Drop in Hoses
The table below shows pressure loss (in PSI per 100 feet of hose) for various flow rates and hose internal diameters, helping you select the right hose size to minimize friction loss.
Water Flow in US GPM | Actual Internal Diameter (inches) | ||||||||||
1/4 | 5/16 | 3/8 | 1/2 | 5/8 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | |
0.5 | 16 | 5 | 2 |
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1 | 54 | 20 | 7 | 2 |
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2 | 180 | 60 | 25 | 6 | 2 |
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3 | 380 | 120 | 50 | 13 | 4 | 2 |
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4 |
| 220 | 90 | 24 | 7 | 3 |
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5 |
| 320 | 130 | 34 | 10 | 4 |
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6 |
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| 220 | 52 | 16 | 7 | 1 |
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8 |
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| 300 | 80 | 25 | 10 | 2 | 1 |
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10 |
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| 120 | 38 | 14 | 3 | 2 | 1 |
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15 |
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| 250 | 80 | 30 | 7 | 4 | 2 |
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20 |
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| 120 | 50 | 12 | 6 | 3 | 1 |
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25 |
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| 200 | 76 | 19 | 9 | 4 | 1 |
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40 |
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| 410 | 162 | 42 | 15 | 6 | 2 | 1 |
60 |
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| 93 | 32 | 13 | 3 | 1 |
70 |
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| 370 | 126 | 43 | 18 | 4 | 1 |
80 |
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| 55 | 23 | 5 | 2 | 1 |
90 |
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| 68 | 28 | 7 | 2 | 1 |
100 |
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| 82 | 34 | 8 | 3 | 1 |
125 |
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| 124 | 51 | 12 | 4 | 2 |
150 |
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| 72 | 18 | 7 | 2 |