John D. Remember when we used to zone each level of a dry pipe system in open parking garages with a check valve to speed up trip time, or am I really showing my age? Could each level of Ken's project be connected to a single pipe, with or without a check valve that ran to the top and a single air vent?
On Mon, Oct 9, 2023 at 9:54 AM <[email protected]> wrote: > 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 > > *[email protected] <[email protected]>* > > *www.FergusonFire.com <http://www.fergusonfire.com/>* > > > > > > *From:* John Denhardt <[email protected]> > *Sent:* Monday, October 9, 2023 12:35 PM > *To:* Discussion list on issues relating to automatic fire sprinklers < > [email protected]> > *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 <[email protected]> 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 (ofc) > > 860-554-7054 (fax) > > 860-608-4559 (cell) > > > > > On Oct 9, 2023 at 12:06 PM, <Ken Wagoner <[email protected]>> > 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 (ofc) > > 860-554-7054 (fax) > > 860-608-4559 (cell) > > > > > On Oct 9, 2023 at 11:44 AM, <Ken Wagoner <[email protected]>> > 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 > 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] > > > _________________________________________________________ > 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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