📊 NFPA 25 Flow Testing (Churn, 100%, 150% Flow Pitot GPM), Hydraulic Degradation

NFPA 25 Annual Fire Pump Flow Test Calculator

Model annual commercial fire pump performance testing under NFPA 25 Chapter 8: calculate water discharge flow (GPM through Underwriters playpipe nozzles using Pitot gauge PSI), plot 3-point pump performance curves (Churn shutoff, 100% rated, and 150% peak flow), identify impeller degradation (>5% drop), and fire inspection margins.

1. Project & Operating Inputs

Fire Pumps Flow Tested (Pump Count e.g. 14 Fire Pumps)

Rated Fire Pump Capacity (GPM e.g. 1,000 GPM Pump)

Customer Bid Price for Annual Certified Flow Test ($ / Pump)

Flow Test Header Hoses, Pitot Gauges, Water Mitigation & Fitters ($ / Pump)

2. Financial Breakdown & Yield

NFPA 25 ANNUAL FLOW TEST

Turnkey Flow Test Contract Profit

Fire Inspection Service Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost