I know you are in the 07 but you can use this as justification from the 16' edition.
9.2.3.2.3 For welded or mechanical outlets on a continuous section of pipe, hanger spacing shall be according to Table 9.2.2.1(a) or Table 9.2.2.1(b). 9.2.3.2.5* A single section of pipe shall not require a hanger when the cumulative distance between hangers on the branch line does not exceed the spacing required by Table 9.2.2.1(a) and Table 9.2.2.1(b). A.9.2.3.2.5 When a branchline contains offsets, sections of pipe are considered adequately supported by the hangers on the adjacent pipe sections when the overall distance between hangers does not exceed the requirements in Table 9.2.2.1(a) and Table 9.2.2.1(b). The cumu- lative distance includes changes in horizontal direction. Multiple consecutive sections of pipe should be permitted to omit hangers. [image: Inline image 1] Best regards, *Joe Burtell, SET, CFPS* [image: Burtell Fire_Small] PH: 406-652-7697 Fax: 406-652-7743 | Cell: 406-861-4507 Email: j...@burtellfire.com Web Site: http://www.burtellfire.com *NOTICE:* The information contained in this e-mail transmission is intended only for use of the individual or entity named above. This e-mail transmission, and any documents, files, previous e-mail transmissions or other information attached to it, may contain confidential information that is legally privileged. If you are not the intended recipient of this e-mail transmission, or the employee or agent responsible for delivering it to the intended recipient, you are hereby notified that any disclosure, dissemination, distribution, copying or other use of this transmission or any of the information contained in or attached to this e-mail is strictly prohibited. If you have received this e-mail transmission in error, please immediately notify us by return e-mail transmission and destroy the original e-mail transmission as well as its attachments without reading or saving it in any manner. Thank you. On Fri, Sep 23, 2016 at 10:33 AM, Dewayne Martinez < dmarti...@total-mechanical.com> wrote: > NFPA 13 (07)ed Section 9.2.3.2.1 and 9.2.3.2.2 > > > > 9.2.3.2.1 > > Unless the requirements of 9.2.3.2.2 or 9.2.3.2.3 are met, there shall be > not less than one hanger for each section of pipe. > > 9.2.3.2.2 > > Where sprinklers are spaced less that 6ft apart, hangers spaced up to a > maximum of 12ft shall be permitted. > > The appendix also states that this also includes multiple pipe fittings > when they are installed not more than 6ft apart. > > > > We have a situation where there is an existing 21ft welded branch line > with 2 hangers on it 12ft apart. Due to a leak in the pipe we had to cut > out a 7ft chunk in the middle and replace it. The site engineer is telling > us that we need to install an additional hanger on this piece because the > couplings are more than 6ft apart. Is he right? > > > > What if the pipe is 21ft with welded outlets greater than 6ft apart? Do > we need hangers between every outlet? > > Thanks, > > Dewayne > > > > > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler. > org > >
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