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Fire Hydrant Flow Testing

Question asked by Paul Fuller on Nov 10, 2017
Latest reply on Dec 17, 2017 by Kevin Rowe

Hello,

   I have several questions regarding the documentation and clarification of fire hydrant flow testing per NFPA 291.

  • When classifying hydrants, is the color coding based on volume of calculated flow or volume at desired pressure (20 psi)?
  • The  pressure hydrant (static/residual) being tested, are the results recorded from that test for that hydrant?
  • If a twenty percent drop in pressure from static to residual is not obtained, will the flow test results be in accurate?  How important is it that a twenty percent drop is obtained?  Is there a formula or equation that can be used to determine a twenty percent residual pressure from an already identified static pressure?

 

Thank you,

Paul

 

Captain Paul J Fuller

Bravo Platoon

Brigantine Fire & Ems Department

pfuller@brigantinebeachnj.com   

(609) 266-2814

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