[Sprinklerforum] Re: Ductwork more than 18 inches below a sprinkler line and less than 4'-0" in width

Here's a question, what did you find out in NFPA 13 when looking at the specific obstruction rules for the type of sprinkler you are providing? Determining if you have an obstruction problem isn't limited to just the general >48" and 18" clearance rules. Craig Prahl | Jacobs | Group Lead/SME

[Sprinklerforum] Re: Ductwork more than 18 inches below a sprinkler line and less than 4'-0" in width

Craig - this is a standard sprinkler in question, so the first figure I went to is Figure 8.6.5.1.2 (a). Seeing as that this is not a light hazard area, Figure 8.6.5.2.2 would not apply. I then wanted to see if there was consensus that section 8.6.5.3.1 could be considered since the obstruction

[Sprinklerforum] Ductwork more than 18 inches below a sprinkler line and less than 4'-0" in width

I have a situation in which there are two HVAC trunklines that are almost right next to two of my sprinkler lines. However, I am hanging these lines up in the bar joist space and the trunklines are a good 4'-0" below my lines (trunklines are hanging well below the trusses) and the trunklines

[Sprinklerforum] Re: - NFPA13:2022 pdf version

Correct – since 2020 editions, NFPA is only selling hard copies again. [cid:image003.jpg@01D685F2.A4401010] Steve Leyton, President T | 619.255.8964 x 102 | www.protectiondesign.com 2851 Camino Del Rio South | Suite 210 | San Diego, CA 92108 Fire

[Sprinklerforum] Re: - NFPA13:2022 pdf version

You can only buy a hard copy or use NFPA link. No more PDF. Thank you, Derrek Crigler A Fire Sprinklers 858-277-3473 On Mar 6, 2023, at 7:01 PM, Brett Peters wrote:  NFPA.org On Mon, Mar 6, 2023 at 7:57 PM Phong - Indochine Engineering mailto:ph...@indoeng.com>> wrote: Dear All, Please

[Sprinklerforum] - NFPA13:2022 pdf version

Dear All, Please can you advise where I can buy the pdf file online. Many thanks. Regards, Le Vu Phong Mobile: +84 (0) 902 363 525 _ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org

[Sprinklerforum] Re: Ductwork more than 18 inches below a sprinkler line and less than 4'-0" in width

I'd look at 8.6.5.2.1.3 -Original Message- From: Sean Lockyer Sent: Monday, March 6, 2023 12:19 PM To: Discussion list on issues relating to automatic fire sprinklers Subject: [Sprinklerforum] Re: Ductwork more than 18 inches below a sprinkler line and less than 4'-0" in width Craig

[Sprinklerforum] Re: - NFPA13:2022 pdf version

NFPA.org On Mon, Mar 6, 2023 at 7:57 PM Phong - Indochine Engineering < ph...@indoeng.com> wrote: > Dear All, > > > > Please can you advise where I can buy the pdf file online. Many thanks. > > > > Regards, > > Le Vu Phong > > Mobile: +84 (0) 902 363 525 > >

[Sprinklerforum] Re: Ductwork more than 18 inches below a sprinkler line and less than 4'-0" in width

A.8.6.5.3.3 When obstructions are located more than 18in. below the sprinkler deflector, an adequate spray pattern develops and obstructions up to and including 4 ft. wide do not require additional protection underneath. Examples are ducts, decks, open grate flooring, catwalks, cutting tables,