[Sprinklerforum] Re: 2nd FDC Instead of a Hydrant ???

Very common in the Charlotte North Carolina region if I’m understanding the situation correctly. This sounds like an exception to 503.1.1 which allows an approved alternative means for fire access due to topography, waterways, or grade issues. These are outside hose connections or wall hydrants

in-rack demand 30/30B

I have some notes from a NFPA 30 and NFPA 30B class stating that the demand of the sprinklers installed in racks don't have to be added to the ceiling sprinkler water demand. I am struggling to find where in each respective standard the language that allows that. Does anyone know if there is

Re: Existing Dry System

That is my understanding as well Matt. Fire area separation IBC 707.3.10 Fire wall separation IBC 706.4 On Thu, Feb 4, 2021 at 2:27 PM Matt Grise via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: > I was thinking that it was 2 hours to be a separated occupancy in the same >

Re: [EXTERNAL] RE: Existing Dry System

I’m referencing the 2015 I Codes. Is there adequate separation per IBC 707.3.10? If not then perhaps it’s been built nonseparated in which IBC 508.3 applies the most restrictive provisions of chapter 9 that apply to the non separated occupancies to the total nonseparated area. Just a head up

13 R in a single family home

I am being informed the International Residential Code has a provision requiring a NFPA 13R system in a single family residence four stories or more in height. Admittedly, this is the first time I've heard of this in my career. I am scanning through the IRC and am not able to locate this

standpipe horizontal exit calculation question

In a building recognized as part of separate fire areas, the annex material in NFPA 14 Section 7.10.1.1 states the the total supply can be calculated based on the single bldg/ fire area requiring the greatest number of standpipes. In this scenario, the physical separation between fire areas is

definition of "bulk"

I am inquiring to see if anyone can provide clarification to the term "bulk" as it relates to the storage of solid oxidizers in Table 22.37.1.4.1 (2013 ed.). I don't see the term defined in Chapter 3. Zach Siegrist ___ Sprinklerforum mailing list

Re: Hydrant Flow vs Drain test

Do you mind providing a link to the specific article referenced? On Mon, Mar 11, 2019 at 11:56 AM Skyler Bilbo wrote: > I may do this sometimes, just to get an idea of the water supply, early on > in a bid, but I would never rely on this for the design of a fire sprinkler > system. There are a

Re: Special Designs of Storage Protection Section 20.5 (2013 ed.)

tion/Tiroly > > 24400 Highland Rd CLE 44143 > > 216-621-8899 > > 216-570-7030 cell > > > > > > > > *From:* Sprinklerforum [mailto: > sprinklerforum-boun...@lists.firesprinkler.org] *On Behalf Of *Zachary > Siegrist > *Sent:* Tuesday, April 0

Special Designs of Storage Protection Section 20.5 (2013 ed.)

All, I am an AHJ and was called to inspect a installation for protection of carton record storage for a single- level catwalk. The existing ceiling level protection is an ESFR system. Section 20.5.6.2.1 states that ceiling sprinklers spaced to cover a maximum of 100 SF shall be standard response

wide obstruction rule in 13D system

All, Does the wide obstruction rule apply on a 13D system? I came across a wide staircase that wraps around the open entry of a huge house. The stair easily exceeds 4 feet in width and the way its arranged has created a decent gap in coverage. Contractor has objected and says the wide

Recall vs replacement

What does a voluntary replacement mean as it relates to fire sprinklers? I understand the difference between voluntary recall vs a mandatory product recall, but am confused what a voluntary replacement means. Is there a difference? Zach ___

Re: Domestic Supply

903.3.5.1.1 of the IBC, 2012 ed. Is that what you are looking for? On Wed, Aug 23, 2017 at 10:41 AM wrote: > Brian, > > > > I think it’s in NFPA 101 if I remember correctly. > > > > Cliff Whitfield, SET > > President > > > > Fire Design, Inc. > > 184 Comfort Place > >

Re: Obstructed construction

inklers Saves Lives > > > > > On Aug 11, 2017, at 6:43 AM, Zachary Siegrist <zachary.siegr...@gmail.com> > wrote: > > I thought I was clear on this definition but I have an FPE and a technical > representative from a fire sprinkler manufacturer stating they are not

Obstructed construction

I thought I was clear on this definition but I have an FPE and a technical representative from a fire sprinkler manufacturer stating they are not concerned with the opening of cross section area in regards to the 70 % stipulation in the definitions. They have stated they are only concerned about

Re: Listed residential head guard

: https://www.linkedin.com/in/travismack > > > > *From:* Sprinklerforum [mailto:sprinklerforum-bounces@lists.firesprinkler. > org <sprinklerforum-boun...@lists.firesprinkler.org>] *On Behalf Of *Zachary > Siegrist > *Sent:* Monday, June 26, 2017 3:31 PM > *To:* Sprinklerfo

Listed residential head guard

Is there a listed residential head guard on the market? I have never came across one. Zach ___ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org

Re: Master pressure reducing valve arrangement 7.2.4 2013 ed.

> > > > > > *From:* Sprinklerforum [mailto: > sprinklerforum-boun...@lists.firesprinkler.org] > > *On Behalf Of *Zachary Siegrist > > > *Sent:* Friday, June 09, 2017 10:58 AM > > > *To:* sprinklerforum@lists.firesprinkler.org > > > *Subject:

Re: Master pressure reducing valve arrangement 7.2.4 2013 ed.

> > 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 Leyton > > > Protection Design & Consulting > > > San Diego, CA > > >

Master pressure reducing valve arrangement 7.2.4 2013 ed.

I am seeing a master PRV for the first time. I am reviewing the nine criteria in NFPA 14 and am stumbling around one of them. What is the intent of the equally sized bypass mentioned in item four? Is there a requirement for an additional PRV in the bypass since the pressure won't be reduced?

Temp ratings of sprinklers based on distance from heat sources 2013 ed.

I have a job where the heads ( ordinary temp) are less than 1 ft 0 in from the edge of a downward discharge diffuser throughout the space. The contractor has supplied me letter from the HVAC company stating that the air discharged out of the diffusers are less than 100F and therefore the heads do

Ventilation for an electric fire pump

I don't have an NFPA 20 in front of me this evening, but I recall there being a provision for ventilation in a fire pump room. Can anyone advise if this requirement is for both diesel and electric pumps? Zach ___ Sprinklerforum mailing list

Exterior projection 45 degree angle figure 8.15.7

I have a contractor submitting a detail to protect unheated storage closets off the balcony ( minimal in size) with a dry pendant extending down at a 45 degree angle as shown in figure 8.15.7 in the 2013 edition. My take is that this section applies to exterior projections including

Concealed standpipe riser - manual dry

I'm not seeing anything in NFPA 14 not allowing the concealment on standpipe piping. However, I feel this may create a problem with the 5 year dry standpipe system hydrostatic test required per NFPA25. 6.3.2.3 of NFPA25 states that inside standpipe piping shall show no leakage. If the piping is

Re: Cpvc in combustible concealed spaces

:tm...@mfpdesign.com > <javascript:_e(%7B%7D,'cvml','email:tm...@mfpdesign.com');> > http://www.mfpdesign.comhttps://www.facebook.com/pages/MFP-Design-LLC/92218417692 > Send large files to us via: https://www.hightail.com/u/MFPDesign > LinkedIn: https://www.linkedin.com

Cpvc in combustible concealed spaces

The blazemaster technical handbook states that cpvc pipe and fittings are not approved for installation in combustible concealed specs requiring sprinklers, as referenced in nfpa 13 unless protected by sprinklers specifically listed for this application. Further on down, the handbook talks about

Re: SPRINKLERS ABOVE GARAGE

To add to what John said, I think the only way to break this up into two buildings is to install a true fire wall out of table IBC 706.4. Breaking this up into fire areas out of IBC 707 just defines fire areas and the code will not recognize it as two buildings. Zach On Tuesday, August 30,

Plan review question

All, how does one calculate loss through a master pressure reducing valve? I am an AHJ and didnt receive a data sheet in the submittal. Is there a fixed loss such as through backflows? Zach ___ Sprinklerforum mailing list

Re: Paint spray application

Thank you for chiming in on this subject. I did end up rejecting the plans. The duct wasn't the only portion of the paint spray application using HSW. Thanks again. On Thursday, August 11, 2016, Roland Huggins wrote: > OK Boys and Girls. This horse is dead and

Paint spray application

I was taught that sidewall sprinklers cannot be used in an extra hazard application. At least that is what I recall. Additionally, the protection areas and maximum spacing table for sidewall heads do not have any information for extra hazard occupancies. I am reviewing a set of plans for a paint

Equation for sizing fire pump

>> a max of 1200 and the system requires a 1500 gpm pump, then a tank is going >> to be required. That is my assumption at least. >> >> Travis Mack, SET >> >> MFP Design, LLC >> >> 2508 E Lodgepole Drive >> >> Gilbert, AZ 85298 >> &

Re: Equation for sizing fire pump

gt; >> CH2MHILL Extension 77540 >> craig.pr...@ch2m.com >> <javascript:_e(%7B%7D,'cvml','craig.pr...@ch2m.com');> >> >> >> >> *From:* Sprinklerforum [ >> mailto:sprinklerforum-boun...@lists.firesprinkler.org >> <javascript:

Re: Equation for sizing fire pump

ILL Extension 77540 > craig.pr...@ch2m.com > <javascript:_e(%7B%7D,'cvml','craig.pr...@ch2m.com');> > > > > *From:* Sprinklerforum [mailto: > sprinklerforum-boun...@lists.firesprinkler.org > <javascript:_e(%7B%7D,'cvml','sprinklerforum-boun...@lists.firesprinkler.or

Antifreeze supply piping and valve arrangement

All, I came across my first antifreeze system today in an existing application. I know there is no current listing of antifreeze for use in new applications which partially explains why I have never seen an antifreeze system before. The install was consistent with the arrangement of supply piping