Dear AFSA Forumites:
We're designing fire sprinkler protection for a new CVS store and we have a
small 2 head antifreeze system to be installed. In looking at Figure 7.6.3.1 in
the 2007 edition of NFPA 13, can anyone tell me the purpose of the two valves
marked as "A" and "B"? Are they testing and sampling valves, and do they need
to be listed for fire protection service as well?
Thank you.
Loren Johnson
The Hitchcock Company
Peoria, IL
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