# Pump Circulation Pressure Exponent Factor (n)

For the pump new circulating pressure formula, the exponent factor “2” is used as an approximation.

However, this value is a round-off number and to determine the exact factor, two pressure readings at different pump rates must be used to calculate this value.

### Correlations

- Pump Circulation Pressure Exponent Factor (n)

### Input Parameters

Name | Input Value - Unit | Converted Value | Validity | Link to Calculation Page | |||
---|---|---|---|---|---|---|---|

1st Pump Output Rate | 315 | gal/min - gpm | |||||

1st Pump Pressure Reading for 1st Pump Rate | 2500 | psi | |||||

2nd Pump Output Rate | 120 | gal/min - gpm | |||||

2nd Pump Pressure Reading for 2nd Pump Rate | 450 | psi | |||||

CALCULATE | |||||||

## Results | |||||||

Correlation | Calculated Value | Warnings | Remarks | ||||

Pump Circulation Pressure Exponent Factor (n) | 1.7768 | - |