Yep, it’s actually 14 sprinklers. Bunch of small compartments.
Thank you, Bob Knight, CET III Fire by Knight, LLC 208-318-3057 From: Sprinklerforum [mailto:[email protected]] On Behalf Of Kyle.Montgomery via Sprinklerforum Sent: Tuesday, June 16, 2020 5:33 PM To: [email protected]; [email protected] Cc: Kyle.Montgomery Subject: RE: [EXTERNAL] RE: Floor area less than required That sounds correct. It seems strange that your calculation is over-discharging by more than 100% though. Minimum discharge is 90 GPM and you’re discharging over 200 GPM? Do you have like 13 sprinklers jammed into this area? -Kyle M From: Sprinklerforum <[email protected]> On Behalf Of Bob Knight via Sprinklerforum Sent: Tuesday, June 16, 2020 3:27 PM To: [email protected] Cc: Bob Knight <[email protected]> Subject: [EXTERNAL] RE: Floor area less than required So, in this case I’m discharging over 200 gpm due to the number of sprinklers in the area. Based on this I shouldn’t need to add any additional flow, correct? Thank you, Bob Knight, CET III Fire by Knight, LLC 208-318-3057 From: Sprinklerforum [mailto:[email protected]] On Behalf Of Shawn Foor via Sprinklerforum Sent: Tuesday, June 16, 2020 4:23 PM To: [email protected]; sprinklerforum Cc: Shawn Foor Subject: Re: Floor area less than required That is the way I read it as well. You would have to add the additional 6 GPM. On Tue, Jun 16, 2020 at 5:03 PM Bob Knight via Sprinklerforum <[email protected]> wrote: NFPA 13, 2016 ed. States: 23.4.4.2.5 Where the total design discharge from these oper- ating sprinklers is less than the minimum required discharge determined by multiplying the required design density times the required minimum design area, an additional flow shall be added at the point of connection of the branch line to the cross main furthest from the source to increase the overall demand, not including hose stream allowance, to the mini- mum required discharge. This is kinda gray to me. Does it mean that if I have a light hazard area that is only 884 sf (offices in a shop) and the area modifier being applied will allow for a 900 sf area, then I would need a minimum discharge of 90 gpm over the entire area? Then, if my calculations bare out 92 gpm nothing else needs done, but if they came out to 84 gpm an additional flow of 6 gpm would need to be added? Sorry about the run on sentences, just confused. Thank you, Bob Knight, CET III Fire by Knight, LLC 208-318-3057 FBK-LOGO-EMAIL _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org <https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwMFaQ&c=wn3mZQLIuInh2ClcJ0_DIA&r=Z_2A85VL7AQzoqudh6uOyS3bn8etxB7nLN8OBJwQd9A&m=_2ppVlQRx7Fb57SSZ9NkK5o7rXDrqJ5TJ7l_rnRCOms&s=ehlEtH7Yni3MIGcXuqxP2PJVlM6NhOL93jbj5WooRyk&e=> -- Shawn Foor, SET FOOR DESIGN, LLC 10208 E 98TH ST TULSA, OK 74133 P:918-237-1400
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