For information purposes only, I have done many projects whose specifications require schedule 40 black steel pipe for all systems. Threaded or grooved ends are allowed. For dry pipe or preaction systems, roll grooves are not allowed; only cut grooves.
I have great success with this approach. Yes, it does cost more, but as long as it is priced correctly, we comply. 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.* Take Your Designers to the Next Level Experienced layout technicians who attend AFSA’s Intermediate Design School will gain deeper knowledge of layout standpipes, fire pumps, seismic protection, and the design requirements for general storage. Computer modeling software and the BIM process will also be covered. Sign up for the last class of 2022 here <https://www.firesprinkler.org/programs/intermediate-fire-sprinkler-system-planning-school/> . On Tue, Nov 22, 2022 at 1:03 PM Fpdcdesign <[email protected]> wrote: > Did the specifying engineer state why he/she wants only Sch 40? > > > > On Nov 22, 2022 at 12:14 PM, <Skyler Bilbo <[email protected]>> > wrote: > > I always use the Corrosion Resistance Ratio (CRR) argument. Basically, > the thickness of schedule 10 piping is greater than or equal to the > thickness of the first exposed thread of threaded schedule 40. Using this > argument, schedule 10 should theoretically last at least as long as > threaded schedule 40. You can't use this argument if they call for grooved > schedule 40. > > > Thanks, > Skyler Bilbo > > 1700 S. Raney Street > Effingham, IL 62401 > 217-819-6404 Direct > 217-347-7315 Fax > > [email protected] > www.wenteplumbing.com > > > On Tue, Nov 22, 2022 at 10:14 AM <[email protected]> wrote: > >> Are there any studies comparing the failure rates of Schedule 10 steel >> pipe versus schedule 40 steel pipe used on wet water filled sprinkler >> systems? >> >> I have a client who is not allowing the use of schedule 10 Main piping 2 >> ½” and larger on their projects. All piping used has to be schedule 40. >> >> >> >> Thank you in advance. >> >> >> >> Regards, >> >> *G. Tim Stone* >> >> >> >> *G. Tim Stone Consulting, LLC* >> >> *NICET Level III Engineering Technician* >> >> *Fire Protection Sprinkler Design* >> >> *and Consulting Services* >> >> >> >> * 117 Old Stage Rd. - Essex Jct., VT. 05452* >> >> * CELL: (802) 373-0638 * >> >> [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] > > > _________________________________________________________ > SprinklerForum mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to > [email protected]
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