Sorry I didn’t specify. The concern is that drop section from the horizontal portion to the top of the dry sprinkler. Thanks for your response.
Zach On Thu, Oct 30, 2025 at 12:14 PM Fpdcdesign <[email protected]> wrote: > Does the dry pendent go to the top of the return bend (arm over)? If so, > would assume gravity would drain the water out of the sprig and arm over. > If there is drop piping that goes from the arm over to the top of the dry > sprinkler, you have a problem. > > Todd Williams > Fire Protection Design/Consulting > Stonington, CT > 860-608-4559 > > > On Oct 30, 2025 at 11:55 AM, <Zachary Siegrist > <[email protected]>> wrote: > > Related to this, I have a dry system I’m reviewing that features return > beds feeding a dry pendant head. My argument is that the environment is > not maintained at 40F or above as mentioned in the 2016 edition section > 7.2.2. I see water filling the return bend during a three year full trip. > His argument is that he is using a listed dry sprinkler. Who is right? > > Zach > > On Wed, Oct 29, 2025 at 1:13 PM John Denhardt <[email protected]> > wrote: > >> While fully allowed, having piping containing water in a dry pipe system >> most likely will lead to accelerated corrosion of the dry pipe piping >> system. >> >> *Thanks,* >> >> *John* >> >> *John August Denhardt, P.E* >> Vice President Engineering and Technical Services >> American Fire Sprinkler Association >> 301-343-1457 >> >> *Are you a member with a technical question? * >> >> Don't forget one of the most valuable resources that AFSA provides is >> Technical Reviews by our Technical Services Department. It’s like having an >> FPE on your staff. Visit www.firesprinkler.org/technicalreview to submit >> a question today! (Member login required.) >> >> On Oct 29, 2025, at 12:59, Taylor Schumacher <[email protected]> >> wrote: >> >> >> >> _________________________________________________________ >> SprinklerForum mailing list: >> >> https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org >> To unsubscribe send an email to >> [email protected] >> >> I have a dry system that is feeding upright sprinklers on sprigs in a >> *heated* light hazard space. The owner wants to add ACT. I’m wondering >> if I can use flex drops into the ACT. Feels weird, but I cannot find any >> reason why I shouldn’t. >> >> >> >> *Taylor Schumacher* >> >> >> >> _________________________________________________________ >> SprinklerForum mailing list: >> >> https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org >> To unsubscribe send an email to >> [email protected] > > _________________________________________________________ SprinklerForum > mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to > [email protected] > > > _________________________________________________________ > SprinklerForum mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to > [email protected]
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