EXAMPLE DATA. Not a real pump.
Example Warehouse · PP-EXAMPLE-0001
Meets
Meets the greatest system demand with 22 psi / 26% to spare at 600 gpm
New baseline set October 20, 2026: rated point 750 gpm at 100 psi, churn 128 psi, 150% flow 72 psi.
Rated point: 750 gpm at 100 psi
Validation Method
Method: field test, checked against churn and the 150 percent point.
No nameplate rated point is recorded.
Churn 128 psi is 128 percent of rated pressure. That agrees with the check: not above 140 percent.
The 150 percent point is 72 psi, 72 percent of rated pressure. That agrees with the check: not below 65 percent.
Baseline set from this pump's own rated point, churn and 150 percent point.
Baseline
Maintenance: 4 repairs in the last 3 years, $18,400 total.
Last repair: March 2026, impeller replaced.
Repair frequency is high for this pump age; reliability going forward is a question.
| Point | Flow gpm | Pressure psi | Speed rpm | Amps | Volts |
|---|---|---|---|---|---|
| Churn | 0 | 128 | 3550 | 70 / 70 / 70 | 460 |
| 100% | 750 | 100 | 3550 | 98 / 98 / 98 | 460 |
| 150% | 1125 | 72 | 3550 | 112 / 112 / 112 | 460 |
| Point 2 | 150 | 123 | 3550 | 74 / 74 / 74 | 460 |
| Point 3 | 300 | 117 | 3550 | 80 / 80 / 80 | 460 |
| Point 4 | 450 | 112 | 3550 | 86 / 86 / 86 |
Tested curve
Solid line and red dots: baseline points, pressure at the pump.
Square: recorded selection, 750 gpm at 100 psi.
Diamond marked Demand: stated demand, 600 gpm at 85 psi.
Replacement nameplate
System demand
Meets the greatest system demand with 22 psi / 26% to spare at 600 gpm
600 gpm at 85 psi.
Source: Sprinkler hydraulic calculation.
Date: 2004-06-01.
Author: Example calculation author.
EXAMPLE DATA. Highest stated demand 600 gpm at 85 psi from a 2004 calculation.
A renovation in 2015 is noted. A demand calculation after that renovation: data not provided.
What is missing
- Pump make: Not provided.
- Pump model: Not provided.
- Serial number: Not provided.
- Impeller diameter: Not provided.
- Driver make: Not provided.
- Controller make: Not provided.
- Controller model: Not provided.
- Maker's curve, pump make and model, and a demand calculation after the 2015 renovation: data not provided.
Pump room notes
EXAMPLE DATA. Not a real site.