Gentlemen, I have a quick question that I hope you can clarify for me. It concerns what the NFPA defines as a system.
Section 14.2.1 states that an inspection of piping is completed by opening a flushing connection at the end of *one main *(most likely the cross main) and by removing a sprinkler toward the end of *one branch line* to look for any type of foreign material. Section 14.2.2 states “*In buildings having multiple wet pipe systems, every other system *shall have an internal inspection of piping every 5 years as described in 14.2.1.” My question concerns what NFPA defines as *multiple wet pipe systems for 14.2.2*. What items in a system define it as a separate wet pipe system? If it has a "main check valve" and "alarm device" does that define it, OR if it has a "gate valve" and "alarm device" does that define it? What I am really trying to figure out is: So if I have 1 wet pipe valve that feeds 3 floors, do I need complete the requirements of Section 14.2.1 on 1 floor, 2 floors, 3 floors, or multiple locatons per floor? I hate to bother you guys, but I have searched and researched. I am just not getting real clarity. If I do not really know, and understand the exact details on something like this, it drives me crazy. Thank you for your insight, Joe ᐧ ᐧ
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