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esp(Effective System Protection):
maximum system output with
minimal pump starts
The ESP sizing procedure covers modern residential
Choose the amount of protection you need.
ESP I: Tank selection is based on approximately one minute minimum pump running time. This is recommended for pumps up to 3/4 H.P.
ESP II: Tank selection is based on approximately two minute minimum pump running time. This is recommended for 3/4 H.P. or larger pumps.
ESP Sizing Table
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| OPERATING PRESSURE - PSIG |
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PUMP DISCHARGE |
| ESP I |
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| ESP II |
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RATE GPM (Approx.) | 20/40 | 30/50 | 40/60 | 20/40 | 30/50 | 40/60 |
5 | ||||||
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7 | ||||||
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10 | ||||||
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12 | ||||||
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15 | ||||||
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20 | (2) | |||||
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25 | (2) | (2) | (2) | |||
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30 | (2) | (2) | (2) | |||
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35 | (2) | (2) | (2) | |||
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40 | (2) | (2) | (2) | (3) | ||
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