I thought so. If we look, the entire book, along with NFPA 25 is essentially per system based.
Another such example below. R/ Mat 29.6.1.1 Such general information shall be provided with a permanently marked weatherproof metal or rigid plastic sign, secured with corrosion-resistant wire, chain, or other acceptable means. 29.6.1.2 Such signs shall be placed at each system control riser, antifreeze loop, and auxiliary system control valve. ENHANCED CONTENT Collapse The general information sign is required to be located near its system control valve. Where valve manifolds are used, it is critical to provide numbering or labeling to allow the signs to be correlated to individual systems because the information signs summarize the basis of designs for each system. Please rate our customer service<https://survey.medallia.com/?emailsignature&fc=3539&bg=Fire%20and%20Fabrication> Matthew J. Willis, CWBSP, CET Engineering Manager – Southwest Region FERGUSON FIRE DESIGN, LLC A Wholly Owned Subsidiary of Ferguson Fire & Fabrication, LLC 3508 Hwy. 557 West Monroe, LA. 71292 C: 307-236-8249 matthew.will...@ferguson.com<mailto:matthew.will...@ferguson.com> www.FergusonFire.com<http://www.fergusonfire.com/> From: John Denhardt <jdenha...@firesprinkler.org> Sent: Monday, October 9, 2023 12:35 PM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org> Subject: [Sprinklerforum] Re: Air venting The language in NFPA 13 is clear from my perspective. One air release per wet sprinkler system. For example - A 50 story building with one wet sprinkler zone control assembly per floor would require 50 air release valves. John John August Denhardt, P.E. Vice-President Engineering and Technical Services American Fire Sprinkler Association 301-343-1457 On Oct 9, 2023, at 12:29, Fpdcdesign <fpdcdes...@gmail.com<mailto:fpdcdes...@gmail.com>> wrote: Ken, I think you would have to with the check valve. I would push back a little in that by adding a normally open valve and a flow switch or manifold would not change the physics of the system enough to warrant the additional vents. If you had a 2 story building without zone valves, you would only need one vent. However, if you add normally open valves and flow switches, you would now need 2 (or 3?). From the standpoint of physics, why? Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080<tel:860-535-2080> (ofc) 860-554-7054<tel:860-554-7054> (fax) 860-608-4559<tel:860-608-4559> (cell) On Oct 9, 2023 at 12:06 PM, <Ken Wagoner<mailto:k...@parsleyconsulting.com>> wrote: Yes, Todd, on each floor, as they're using a Victaulic UMC manifold which includes a check valve. thanks for the information, Ken Wagoner, SET Parsley Consulting 500 West Mechanic Street Harrisonville, Missouri 64701-2235 Phone: (760) 745-6181 Visit the website<https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.parsleyconsulting.com%2f&c=E,1,Y5zKJKPEh1mBEBqSR-VE9cUKl5y-eyP8BpvmE_5j9ZqW2eJbNphYzrCMBZ-2YuX6d-RRkHI4gQ1FV-cvOeCfRC58uZS9NiToZv2mx7909oCqLvCW_n5hDHeK&typo=1> On 10/9/2023 10:49 AM, Fpdcdesign wrote: Is there a check valve on the floor control assembly? Todd G Williams, PE Fire Protection Design/Consulting Stonington, CT 860-535-2080<tel:860-535-2080> (ofc) 860-554-7054<tel:860-554-7054> (fax) 860-608-4559<tel:860-608-4559> (cell) On Oct 9, 2023 at 11:44 AM, <Ken Wagoner<mailto:k...@parsleyconsulting.com>> wrote: Forumites, I'm working on a multi-story building protected per NFPA 13. As each floor has a separate control valve, is a means to vent trapped air required on each floor? Or is it only required at the highest level of the building? My thinking is that each floor has a separate fire sprinklers system. Any thoughts? Ken Wagoner, SET Parsley Consulting 500 West Mechanic Street Harrisonville, Missouri 64701-2235 Phone: (760) 745-6181 Visit the website<https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fwww.parsleyconsulting.com%2f&c=E,1,Y5zKJKPEh1mBEBqSR-VE9cUKl5y-eyP8BpvmE_5j9ZqW2eJbNphYzrCMBZ-2YuX6d-RRkHI4gQ1FV-cvOeCfRC58uZS9NiToZv2mx7909oCqLvCW_n5hDHeK&typo=1> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org> To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org<mailto:sprinklerforum-le...@lists.firesprinkler.org> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org> To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org<mailto:sprinklerforum-le...@lists.firesprinkler.org> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org> To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org<mailto:sprinklerforum-le...@lists.firesprinkler.org> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org<https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org> To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org<mailto:sprinklerforum-le...@lists.firesprinkler.org>
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