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| Note: | A recirculation pump is required for flows greater than the |
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| Note: | Process flow less than or greater than the flow rates shown below | ||||||||||||||
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| Pressure drops in ∆P, psig and kPa |
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| 2 HP |
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| 3.5 HP |
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| 5 HP |
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| 7.5 HP |
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Flow |
| ∆ P | Flow |
| ∆ P | Flow | ∆ P |
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gpm | lpm |
| psig | kPa | gpm | lpm | psig |
| kPa | gpm | lpm | psig |
| kPa | gpm | lpm | psig |
| kPa |
4.06 | 15.4 |
| 3.5 | 24.1 | 8.03 | 30.4 | 4.0 |
| 27.6 | 10.0 | 37.9 | 1.5 |
| 10.5 | 12.0 | 45.4 | 2.3 |
| 16.1 |
6.01 | 22.8 |
| 7.0 | 48.3 | 10.00 | 37.9 | 6.5 |
| 44.8 | 12.0 | 45.4 | 2.2 |
| 14.8 | 16.0 | 60.6 | 2.9 |
| 20.1 |
8.02 | 30.4 |
| 11.5 | 79.3 | 12.00 | 45.4 | 10.0 |
| 69. | 18.0 | 68.1 | 4.7 |
| 32.1 | 20.0 | 75.7 | 5.0 |
| 34.5 |
10.00 | 37.9 |
| 18.0 | 124.1 | 14.00 | 53.0 | 13.0 |
| 89.6 | 24.0 | 90.8 | 7.3 |
| 50.2 | 24.0 | 90.8 | 6.9 |
| 47.4 |
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| 16.00 | 60.6 | 18.0 |
| 124.1 |
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| 28.0 | 106.0 | 9.6 |
| 65.9 |
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| 33.0 | 124.9 | 12.7 |
| 87.8 |
| 10 HP |
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| 15 HP |
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| 20 HP |
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| 25 | HP |
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Flow |
| ∆ P | Flow |
| ∆ P | Flow | ∆ P |
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gpm | lpm |
| psig | kPa | gpm | lpm | psig |
| kPa | gpm | lpm | psig |
| kPa | gpm | lpm | psig |
| kPa |
22.0 | 83.3 |
| 4.7 | 32.6 | 30.0 | 113.6 | 4.5 |
| 31.3 | 40.0 | 151.4 | 4.0 |
| 27.6 | 55.0 | 208.2 | 5.5 |
| 37.9 |
30.0 | 113.6 |
| 8.28 | 57.1 | 40.0 | 151.4 | 7.5 |
| 51.7 | 45.0 | 170.3 | 4.0 |
| 27.6 | 58.0 | 219.5 | 5.8 |
| 40.0 |
38.0 | 143.8 |
| 12.91 | 89.0 | 50.0 | 189.3 | 12.4 |
| 85.2 | 50.0 | 189.3 | 5.0 |
| 34.5 | 61.0 | 230.9 | 6.0 |
| 41.4 |
46.0 | 174.1 |
| 16.77 | 115.6 | 60.0 | 227.1 | 17.8 |
| 122.8 | 52.0 | 196.8 | 6.0 |
| 41.4 | 70.0 | 264.9 | 8.5 |
| 58.6 |
50.0 | 189.3 |
| 20.00 | 137.9 | 70.0 | 264.9 | 24.2 |
| 166.6 | 55.0 | 208.2 | 6.5 |
| 44.8 |
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| 30 | HP |
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| 35 | HP |
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| 40 HP |
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Flow |
| ∆ P | Flow |
| ∆ P | Flow | ∆ P |
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| ∆ P | ||||||||
gpm | lpm |
| psig | kPa | gpm | lpm | psig |
| kPa | gpm | lpm | psig |
| kPa | gpm | lpm | psig |
| kPa |
72.0 | 272.5 |
| 6.0 | 41.1 | 38.7 | 146.5 | 1.5 |
| 10.4 | 92.6 | 350.5 | 7.9 |
| 54.5 | 44.7 | 169.2 | 2.0 |
| 13.8 |
75.0 | 283.9 |
| 6.5 | 44.8 | 51.2 | 193.8 | 2.6 |
| 17.9 | 107.1 | 405.4 | 10.4 |
| 71.7 | 58.5 | 221.4 | 3.4 |
| 23.4 |
80.0 | 302.8 |
| 8.0 | 55.2 | 62.3 | 235.8 | 3.8 |
| 26.2 |
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| 70.9 | 268.3 | 4.9 |
| 33.8 |
85.0 | 321.7 |
| 9.5 | 65.5 | 71.8 | 271.7 | 4.9 |
| 33.8 |
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| 81.6 | 308.8 | 6.3 |
| 43.5 |
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| 82.9 | 313.7 | 6.5 |
| 44.8 |
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| 105.7 | 400.0 | 10.3 |
| 71.0 |
Note: These pressure drop values are valid for single- and
Calculating Chiller Nominal Flow and Pressure to Process
•Flow rate: Obtain the flow reading from the appropriate pump curve.
•Pressure: Obtain a corresponding pressure reading from the pump curve you selected, then subtract the
•For
Chapter 7: Appendix | 60 of 78 |