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From: Dewayne Martinez via Sprinklerforum
Date: 1/21/22 12:34 PM (GMT-06:00)
To: sprinklerforum@lists.firesprinkler.org
Cc: Dewayne Martinez
Subject: Exposed CPVC pipe and residential upright sprinklers
I don't see an option for using
: Sprinklerforum On Behalf
Of Dewayne Martinez via Sprinklerforum
Sent: Friday, January 21, 2022 1:34 PM
To: sprinklerforum@lists.firesprinkler.org
Cc: Dewayne Martinez
Subject: Exposed CPVC pipe and residential upright sprinklers
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I don't see an option for using residential upright sprinkler on exposed CPVC
pipe in any of the manufactures installation manuals. Am I missing something
or is QR uprights my only option?
Thank you,
Dewayne Martinez
Fire Protection Design Manager
TOTAL Mechanical
Building Integrity
W234
NFPA 13 (13ed) section 8.11.5
Is it just me or do these rules seem even more restrictive that ESFR?
There also appears to be some gaps on how to treat certain obstructions.
Here are some of the areas I need some clarification from the forum on…..
8.11.5.2- How do you treat an obstruction >8in
installed a ball drip in gravel similar to a french drain
at the low point.
On Wed, Mar 10, 2021 at 11:17 AM Dewayne Martinez via Sprinklerforum <
sprinklerforum@lists.firesprinkler.org> wrote:
> I see a trend starting in our area where the architect is specifying a
> remote free standing
I see a trend starting in our area where the architect is specifying a
remote free standing FDC without a valve pit when the check valve can be
placed inside the building. Upon talking to my field superintendent he was
concerned that some check valves let multiple gallons of water through
whenever
How does the forum treat ESFR sprinklers when there is a wall added in the
warehouse which creates the heads on one side to be too far away but when you
add a new line it puts the ESFR sprinklers too close together? Some times
there is that perfect storm where you can’t move the existing line
In Wisconsin we have done several NFPA 13 condo projects where the
architect received approval to not sprinkler the attic when smoke and heat
detection were installed. So not every state is interpreting it the same.
On Wed, Jul 15, 2020, 12:51 Steve Leyton via Sprinklerforum <
re Preparedness Campaign. Help us support the inclusion
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<https://www.redcross.org/donate/cm/afsa-pub.html/>
On Fri, May 29, 2020 at 11:28 AM Dewayne Martinez via Sprinklerforum <
sprinklerforum@lists.firesprinkler.org> wrote:
Is the hanger on the pipe supplying a flexible drop to a pendant sprinkler
in a ceiling still required to one that prevents upward movement?
Sections 9.2.3.4.4.1,9.2.3.5.2.2
Thank you,
Dewayne Martinez
Fire Protection Design Manager
*TOTAL Mechanical*
*Building* *Integrity*
W234
4, 2020 at 9:46 AM Dewayne Martinez via Sprinklerforum <
sprinklerforum@lists.firesprinkler.org> wrote:
I am trying to figure out the proper design criteria for a combustible dust
collector and associated duct work.
NFPA 654-2020ed section 9.3.5.2
NFPA 652-2019ed section 9.8.5.3
>
> From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org]
> On Behalf Of Dewayne Martinez via Sprinklerforum
> Sent: Tuesday, 25 February 2020 4:45 AM
> To: sprinklerforum@lists.firesprinkler.org
> Cc: Dewayne Martinez
> Subject: Combustible dust collector
&
I am trying to figure out the proper design criteria for a combustible dust
collector and associated duct work.
NFPA 654-2020ed section 9.3.5.2
NFPA 652-2019ed section 9.8.5.3
Both refer you back to NFPA 13
There is no section on NFPA 13-2013 for dust collectors. The closest I can
find is
I have a situation where I have a condo unit where the owner is requesting
to have “custom wood coffer ceilings”. This creates small ceiling pockets
(4’x4’x8”) throughout the area in question. The total areas in question
would be between 80 cu ft and 200 cu ft in size. What are my options to
NFPA 13 – 2013 ed
We have a multi-tenant building that is entirely fed off one dry system.
We are doing some work on in one tenant. Just you basic arm-over
relocates. The AHJ wants us to hydrostatic test and air test the entire
building. Since we can’t isolate the area of work we would be
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