[Sprinklerforum] Re: Standpipe NFPA14 2019

[Steve Leyton]

Sorry for the delay in responding; I deleted this email.

I would have to see the floor plan to form an opinion, and based on what you've 
got, the issue has taken a hard left turn.   The standard doesn't require a 
hose connection on the apparatus access level, which I assume is the subject 
floor here, but many fire departments do as a matter of local policy and 
practice.But you have to have the one to satisfy the exit corridor 
provision, so I'd say that if the FD requires both connections, you have a 
horizontal standpipe but if you can omit the one at the stair, then you would 
perform a "conventional" calc' regarding the added flow of the second 
standpipe.BUT... this is all best answered in collaboration with the 
serving FD.


The foregoing is my opinion only and does not represent NFPA or the NFPA 14 
Technical Committee, nor intended to serve as an interpretation of the standard.

Protection Design and Consulting
Steve Leyton, President
T  |  619.255.8964 x 102  |  
www.protectiondesign.com<http://www.protectiondesign.com/>
2851 Camino Del Rio South  |  Suite 210  |  San Diego, CA  92108
Fire Protection System Design | Consulting | Planning | Training






From: Chris Wilson 
Sent: Monday, May 13, 2024 6:57 AM
To: Discussion list on issues relating to automatic fire sprinklers 

Subject: [Sprinklerforum] Re: Standpipe NFPA14 2019

Steve,
Yes there is a hose connection at the first floor landing of the remote stand 
pipe. Yes there is access to occupied first floor space via the exit passage 
and the remote stairway.
Thanks

Christopher S. Wilson SET
Project Design Manager
Treasure Valley Fire Protection
2731 S. Saturn Way
Boise, ID 83709
Phone:  208-362-1888
Fax: 208-362-2207

please note all TVFP email
addresses have changed
new email below

chr...@tvfpinc.com<mailto:chr...@tvfp.us>

From: Steve Leyton 
mailto:st...@protectiondesign.com>>
Sent: Friday, May 10, 2024 7:29 PM
To: Discussion list on issues relating to automatic fire sprinklers 
mailto:sprinklerforum@lists.firesprinkler.org>>
Subject: [Sprinklerforum] Re: Standpipe NFPA14 2019

Do you have a hose connection on the 1st floor landing of the remote standpipe 
stairwell in addition to the one at the exit passageway door?   And is there 
access to occupiable areas on the first floor from the passageway or stairwell?

Obviously, two or more hose connections supplied by a feed main on a single 
floor is a horizontal standpipe by definition, but it would seem to me that in 
this type of egress system that would be redundant or not of value depending on 
where a firefighter would be going with the water after connection to one or 
the other hose connection.

The foregoing does not represent any opinion or interpretation of the standard 
on behalf of NFPA or the NFPA 14 Technical Committee.

[cid:image001.jpg@01DAA6B9.DACA9100]
Steve Leyton, President
T  |  619.255.8964 x 102  |  
www.protectiondesign.com<http://www.protectiondesign.com/>
2851 Camino Del Rio South  |  Suite 210  |  San Diego, CA  92108
Fire Protection System Design | Consulting | Planning | Training



From: Chris Wilson [mailto:chr...@tvfpinc.com]
Sent: Friday, May 10, 2024 7:42 AM
To: 
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: [Sprinklerforum] Standpipe NFPA14 2019


To all,
I have a 4 story building with 2 exit stairways I am installing a class I 
manual wet standpipe combination sprinkler system. The remote stair is on the 
interior of the building and has a rated exit passageway  on the first floor 
that is 73' long. I am placing all hose valves on the main floor landings and 
one a the exit door of the exit passage way.

I am planning on calculating 500 gpm from the remote stand pipe and 250 for the 
2nd standpipe. The exit passage way hose connection will be fed by a  2/12 
lateral pipe fed from the  4" horizontal supply to the remote standpipe as it 
pass by the exit passageway.

Do I need to include an additional 250 gpm in my calcs at the hose valve at the 
exit passageway?

Thanks
Christopher S. Wilson SET
Project Design Manager
Treasure Valley Fire Protection
2731 S. Saturn Way
Boise, ID 83709
Phone:  208-362-1888
Fax: 208-362-2207

please note all TVFP email
addresses have changed
new email below

chr...@tvfpinc.com<mailto:chr...@tvfp.us>


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[Sprinklerforum] Re: Standpipe NFPA14 2019

[Chris Wilson]

Steve,
Yes there is a hose connection at the first floor landing of the remote stand 
pipe. Yes there is access to occupied first floor space via the exit passage 
and the remote stairway.
Thanks

Christopher S. Wilson SET
Project Design Manager
Treasure Valley Fire Protection
2731 S. Saturn Way
Boise, ID 83709
Phone:  208-362-1888
Fax: 208-362-2207

please note all TVFP email
addresses have changed
new email below

chr...@tvfpinc.com<mailto:chr...@tvfp.us>

From: Steve Leyton 
Sent: Friday, May 10, 2024 7:29 PM
To: Discussion list on issues relating to automatic fire sprinklers 

Subject: [Sprinklerforum] Re: Standpipe NFPA14 2019

Do you have a hose connection on the 1st floor landing of the remote standpipe 
stairwell in addition to the one at the exit passageway door?   And is there 
access to occupiable areas on the first floor from the passageway or stairwell?

Obviously, two or more hose connections supplied by a feed main on a single 
floor is a horizontal standpipe by definition, but it would seem to me that in 
this type of egress system that would be redundant or not of value depending on 
where a firefighter would be going with the water after connection to one or 
the other hose connection.

The foregoing does not represent any opinion or interpretation of the standard 
on behalf of NFPA or the NFPA 14 Technical Committee.

[cid:image001.jpg@01DAA509.E0D5AF00]
Steve Leyton, President
T  |  619.255.8964 x 102  |  
www.protectiondesign.com<http://www.protectiondesign.com/>
2851 Camino Del Rio South  |  Suite 210  |  San Diego, CA  92108
Fire Protection System Design | Consulting | Planning | Training



From: Chris Wilson [mailto:chr...@tvfpinc.com]
Sent: Friday, May 10, 2024 7:42 AM
To: 
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: [Sprinklerforum] Standpipe NFPA14 2019


To all,
I have a 4 story building with 2 exit stairways I am installing a class I 
manual wet standpipe combination sprinkler system. The remote stair is on the 
interior of the building and has a rated exit passageway  on the first floor 
that is 73' long. I am placing all hose valves on the main floor landings and 
one a the exit door of the exit passage way.

I am planning on calculating 500 gpm from the remote stand pipe and 250 for the 
2nd standpipe. The exit passage way hose connection will be fed by a  2/12 
lateral pipe fed from the  4" horizontal supply to the remote standpipe as it 
pass by the exit passageway.

Do I need to include an additional 250 gpm in my calcs at the hose valve at the 
exit passageway?

Thanks
Christopher S. Wilson SET
Project Design Manager
Treasure Valley Fire Protection
2731 S. Saturn Way
Boise, ID 83709
Phone:  208-362-1888
Fax: 208-362-2207

please note all TVFP email
addresses have changed
new email below

chr...@tvfpinc.com<mailto:chr...@tvfp.us>


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[Sprinklerforum] Re: Standpipe NFPA14 2019

[Rick Matsuda]

Gosh, 73-feet is a long distance to drag fire hose from the valve at the exit 
door along the length of the rated exit passageway. 
If there’s no occupancy openings in the length of the exit passageway, then 
maybe you could ask the AHJ if he wants a hose valve at the inside end of the 
exit passageway. 
If that’s the case, then I don’t think you need to add the additional 250-gpm. 
Just use 500 plus 250.
Just my opinion.
Rick Matsuda 

> On May 10, 2024, at 3:30 PM, Steve Leyton  wrote:
> 
> 
> Do you have a hose connection on the 1st floor landing of the remote 
> standpipe stairwell in addition to the one at the exit passageway door?   And 
> is there access to occupiable areas on the first floor from the passageway or 
> stairwell? 
>  
> Obviously, two or more hose connections supplied by a feed main on a single 
> floor is a horizontal standpipe by definition, but it would seem to me that 
> in this type of egress system that would be redundant or not of value 
> depending on where a firefighter would be going with the water after 
> connection to one or the other hose connection.
>  
> The foregoing does not represent any opinion or interpretation of the 
> standard on behalf of NFPA or the NFPA 14 Technical Committee.
>  
> 
> Steve Leyton, President 
> T  |  619.255.8964 x 102  |  www.protectiondesign.com 
> 2851 Camino Del Rio South  |  Suite 210  |  San Diego, CA  92108
> Fire Protection System Design | Consulting | Planning | Training
>  
>  
>  
> From: Chris Wilson [mailto:chr...@tvfpinc.com] 
> Sent: Friday, May 10, 2024 7:42 AM
> To: sprinklerforum@lists.firesprinkler.org
> Subject: [Sprinklerforum] Standpipe NFPA14 2019
>  
>  
> To all,
> I have a 4 story building with 2 exit stairways I am installing a class I 
> manual wet standpipe combination sprinkler system. The remote stair is on the 
> interior of the building and has a rated exit passageway  on the first floor 
> that is 73’ long. I am placing all hose valves on the main floor landings and 
> one a the exit door of the exit passage way.
>  
> I am planning on calculating 500 gpm from the remote stand pipe and 250 for 
> the 2nd standpipe. The exit passage way hose connection will be fed by a  
> 2/12 lateral pipe fed from the  4” horizontal supply to the remote standpipe 
> as it pass by the exit passageway.
>  
> Do I need to include an additional 250 gpm in my calcs at the hose valve at 
> the exit passageway?
>  
> Thanks
> Christopher S. Wilson SET
> Project Design Manager
> Treasure Valley Fire Protection
> 2731 S. Saturn Way
> Boise, ID 83709
> Phone:  208-362-1888
> Fax: 208-362-2207
>  
> please note all TVFP email
> addresses have changed
> new email below
>  
> chr...@tvfpinc.com
>  
> 
> _
> SprinklerForum mailing list:
> https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org
> To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org

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[Sprinklerforum] Re: Standpipe NFPA14 2019

[Steve Leyton]

Do you have a hose connection on the 1st floor landing of the remote standpipe 
stairwell in addition to the one at the exit passageway door?   And is there 
access to occupiable areas on the first floor from the passageway or stairwell?

Obviously, two or more hose connections supplied by a feed main on a single 
floor is a horizontal standpipe by definition, but it would seem to me that in 
this type of egress system that would be redundant or not of value depending on 
where a firefighter would be going with the water after connection to one or 
the other hose connection.

The foregoing does not represent any opinion or interpretation of the standard 
on behalf of NFPA or the NFPA 14 Technical Committee.

[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 Protection System Design | Consulting | Planning | Training



From: Chris Wilson [mailto:chr...@tvfpinc.com]
Sent: Friday, May 10, 2024 7:42 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: [Sprinklerforum] Standpipe NFPA14 2019


To all,
I have a 4 story building with 2 exit stairways I am installing a class I 
manual wet standpipe combination sprinkler system. The remote stair is on the 
interior of the building and has a rated exit passageway  on the first floor 
that is 73' long. I am placing all hose valves on the main floor landings and 
one a the exit door of the exit passage way.

I am planning on calculating 500 gpm from the remote stand pipe and 250 for the 
2nd standpipe. The exit passage way hose connection will be fed by a  2/12 
lateral pipe fed from the  4" horizontal supply to the remote standpipe as it 
pass by the exit passageway.

Do I need to include an additional 250 gpm in my calcs at the hose valve at the 
exit passageway?

Thanks
Christopher S. Wilson SET
Project Design Manager
Treasure Valley Fire Protection
2731 S. Saturn Way
Boise, ID 83709
Phone:  208-362-1888
Fax: 208-362-2207

please note all TVFP email
addresses have changed
new email below

chr...@tvfpinc.com


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