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use of lower foam flow rate

Question asked by kavir on Jul 24, 2019
Latest reply on Jul 31, 2019 by kavir

Good day,

 

What would be effects of applying foam solution at a lower gpm than that listed in the NFPA Standard 11 and relevant manufacturer's design criteria? A scenario is where the existing fire pump is of smaller capacity than what protection of the hazard requires.

 

eg. recommended design value is 1,000gpm but it is applied at 500gpm for that particular hazard?

 

Assume the discharge time is increased to allow for the design foam solution volume to be discharged.

 

Thank you.

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