I'd be more concerned with failure to drain than failure to close during fire. Hook up a couple lines, pump for 150 psi at the FDC. A little water out the ball drip should not change the outcome.
Bruce Verhei > On Mar 30, 2017, at 21:16, IPA <[email protected]> wrote: > > The ones from Viking are rated to 250 psi. I would imagine a ball drip > failure is practically impossible. > > >> On Thu, Mar 30, 2017 at 9:00 AM, AKS-Gmail-IMAP <[email protected]> wrote: >> The question brings up another question. The fine print disclaimer on most >> of the ball drip cut sheets for ball drips sold for FDC application say the >> unit is rated for a ridiculously lower pressure than what one would expect >> when the FDC is in use. I’ve asked manufacturer’s reps to explain exactly >> the implications for the disclaimers. The best answer I got was, “We don’t >> know but the ball inside is SS.” I could make a number of guesses, but that >> is not knowing the real skinny. >> >> Allan Seidel >> St. Louis, MO >> >>>> On Mar 29, 2017, at 8:21 AM, Hinson, Ryan <[email protected]> wrote: >>>> >>> >>>> Can the ball drip actually be verified >> >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org >> > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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