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Private Hydrant Flow Test Certificate

This certificate documents an NFPA 291 pitot-gauge flow test of a private hydrant — static, pitot and residual pressure readings, the flow calculated at 20 PSI residual pressure, and the resulting color-coded flow classification.

NFPA 291 (Recommended Practice for Fire Flow Testing and Marking of Hydrants)Valid: Periodic — interval set by the AHJ or insurer

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Sample Hydrant Flow Test certificate

Sample Private Hydrant Flow Test Certificate certificate created with CertBox, showing the professional PDF layout with static, pitot and residual pressure readings, flow calculated at 20 psi residual pressure, nfpa 291 color-code flow classification (blue/green/orange/red)

Sample Hydrant Flow Test with fictional data. All personal details shown are fake.

What it covers

  • Static, pitot and residual pressure readings
  • Flow calculated at 20 PSI residual pressure
  • NFPA 291 color-code flow classification (blue/green/orange/red)
  • Hydrant condition — caps, threads and accessibility

Who needs a Hydrant Flow Test?

Fire protection contractors
Sprinkler system designers
Insurance underwriters
Municipal, campus and industrial facility managers

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Frequently asked questions about Hydrant Flow Test

What do the hydrant color codes mean?
NFPA 291 and AWWA use light blue for ≥ 1,500 GPM (Class AA), green for 1,000–1,499 GPM (Class A), orange for 500–999 GPM (Class B) and red for under 500 GPM (Class C), based on available flow at 20 PSI residual pressure.
What makes a hydrant flow test valid?
NFPA 291 calls for at least a 25% pressure drop from static at the residual hydrant, or flowing the full expected fire-fighting demand, so the reading reflects the system’s real capacity rather than a negligible draw.

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