There is no height limit in latest editions of NFPA 14. Standpipes that directly supply hose connections are limited to 350 PSI (stay tuned for 2019 cycle on that one) but there is no height or pressure limit on express mains that serve upper zones. Our firm designed a 545’ single zone system for a tower here in San Diego.
The foregoing is my opinion only and is not intended to represent the NFPA 14 Technical Committee, nor serve as an interpretation of the standard. Steve L. From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of tcfire Sent: Tuesday, August 02, 2016 2:50 PM To: sprinklerforum@lists.firesprinkler.org Subject: RE: HIGH RISE BUILDING Seems I recall you can go up to 400 ft with a single zone if you use PRV's...may be an older ver6of 14 though. Sent from my Sprint Samsung Galaxy S7. -------- Original message -------- From: Dewayne Martinez <dmarti...@total-mechanical.com<mailto:dmarti...@total-mechanical.com>> Date: 8/2/16 4:33 PM (GMT-05:00) To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Subject: HIGH RISE BUILDING Is there a limit to the height or number of stories a “zone” for a high rise building can supply? I have a spec written to say each zone can either be a maxim height of 275ft or 20 stories. Thanks, Dewayne
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