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auxiliary valve location of the hydrant

Question asked by abbas.akhavan on Oct 5, 2017
Latest reply on Oct 5, 2017 by cdafd

Hi,

 

The NFPA 24-Edition 2013 allows that the auxiliary valve ( Control Valve) be installed within 20 feet of the hydrant as per subsection 7.1.1.2.1.

Most the control valves that I have seen, were installed in the vicinity of the hydrant between 2 to max. 5 feet. I knew the NFPA said "within" that is inclusive, but I am looking for the situation that makes it to be installed in a way far.

What is the rationale behind this NFPA requirement?

My common sense told me that is due to accommodating the unexpected situation ( topography of the site, soil strength layers, etc.)

I do appreciate to have your opinion in this regard.

 

Thanks,

 

Abbas

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