Fire Pump Curve Analysis

Analyze pump performance at various operating points per NFPA 20.

100% of rated pump capacity

Pressure at rated flow (100%)

Shutoff/no-flow pressure (optional)

Pressure at 150% flow (optional)

NFPA 20 Pump Curve Requirements

Flow Point Min Pressure Max Pressure
0% (Churn)101%140%
100% (Rated)100%100%
150% (Overload)65%-

All percentages relative to rated pressure at rated flow.