Keep in mind, NFPA 13 states piping or tubing that meets Table 7.3.1.1 is acceptable. Listing is NOT required.
*NFPA 13 - 2019: 7.3.1.1 Pipe or tube shall meet or exceed one of the standards in Table 7.3.1.1 or be in accordance with 7.3.3.* Thus, as long as any piping or tubing material complies with one of the standards listed in Table 7.3.1.1, it is acceptable to use. I have not used much schedule 7 steel pipe in my career. However, I have heard many horror stories with this steel pipe. 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/> *Our members are at the heart of everything we do.* *Expand your design department in 2021!* AFSA is taking its popular two-week Beginning Fire Sprinkler System Planning School on the road. From San Diego to Tampa Bay and stops in between, our technical experts will teach the basics of system layout based on the 2019 edition of NFPA 13. Space is limited. Enroll today at https://www.firesprinkler.org/schools. On Wed, Jan 20, 2021 at 10:58 AM Matt Grise via Sprinklerforum < [email protected]> wrote: > Has there been any push/interest in allowing unlisted (standard ASTM A53) > schedule 7 steel pipe to be allowed by code in place of the listed "flow" > piping options? > > Matt > > _______________________________________________ > 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
