Thanks everyone for the input. My fitter brought this up to me and after I read the sections I was still not sure. John’s comment makes perfect sense.
Thank you, Dewayne Martinez Fire Protection Design Manager *TOTAL* *Mechanical* *Building* *Integrity* W234 N2830 Paul Rd. Pewaukee, WI 53072 dmarti...@total-mechanical.com Ph: 262-522-7110 Cell: 414-406-5208 http://www.total-mechanical.com/ *From:* Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> *On Behalf Of *John Denhardt via Sprinklerforum *Sent:* Friday, May 29, 2020 10:41 AM *To:* sprinklerforum@lists.firesprinkler.org *Cc:* John Denhardt <jdenha...@firesprinkler.org> *Subject:* Re: NFPA 13, 2013 ed - hangers and pressures above 100psi In my opinion, no. The flexible drop assembly is anchored to the ceiling. The point of this requirement is to keep the pendent sprinkler from moving upwards during activation. The flexible drop assembly accomplishes this requirement. Thanks, John John August Denhardt, PE *Vice President, Engineering and Technical Services* *American Fire Sprinkler Association* m: p: 301-343-1457 214-349-5965 ext 121 w: firesprinkler.org <https://www.facebook.com/firesprinkler.org/> <https://twitter.com/afsa/status/1039528345367732224> <https://www.linkedin.com/company/american-fire-sprinkler-association-afsa-/> <https://www.instagram.com/firesprinklerorg/> *Help AFSA “Sound the Alarm” about sprinklers!* AFSA’s charitable partner the American Red Cross is educating millions through its Home Fire Preparedness Campaign. Help us support the inclusion of fire sprinklers in their messaging. Donate today! <https://www.redcross.org/donate/cm/afsa-pub.html/> On Fri, May 29, 2020 at 11:28 AM Dewayne Martinez via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: Is the hanger on the pipe supplying a flexible drop to a pendant sprinkler in a ceiling still required to one that prevents upward movement? Sections 9.2.3.4.4.1,9.2.3.5.2.2 Thank you, Dewayne Martinez Fire Protection Design Manager *TOTAL Mechanical* *Building* *Integrity* W234 N2830 Paul Rd. Pewaukee, WI 53072 dmarti...@total-mechanical.com Ph: 262-522-7110 Cell: 414-406-5208 http://www.total-mechanical.com/ _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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