You can access the NFPA Standards on-line for free by going to
http://www.nfpa.org/codes-and-standards/resources/free-access
Sorry but can't help with BS .
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
You can't use the PRV to relieve excess pressure under normal conditions due to
an over designed pump. There can be unexpected times in a municipal supply
where pressure spikes occur for various reasons. If your pump selection puts
you close to the maximum system working pressure under normal
Is the 140 psi total pressure or pump rating?
The pressure relief valve comes into play if the combination of supply pressure
and pump pressure exceeds the allowable system pressure, which for most cases
is 175 psi.
So if you had fluctuating supply pressures, during a higher than normal
is 2210.4 ,
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: April-06-17 4:52 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: NFPA 20 4.7.7.2
You can't use the PRV to r
the original message.
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: Thursday, April 20, 2017 2:50 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: Hood System - Questi
er by reply e-mail and
destroy all copies of the original message.
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: Thursday, April 20, 2017 2:50 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprin
You say it's "approved and listed". If that is the case, why would it not be
allowed?
Do you have a link to this unit?
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
inklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: Thursday, April 20, 2017 2:28 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: Hood System - Question
You say it's "approved and listed". If that is the ca
There ya go. Now you're covered. Hopefully you got that in writing.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
craig.pr...@ch2m.com
From: Sprinklerforum
iresprinkler.org>>
on behalf of Prahl, Craig/GVL
<craig.pr...@ch2m.com<mailto:craig.pr...@ch2m.com>>
Sent: Wednesday, April 19, 2017 1:37 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: ESFR Sprinkler spacing
NFPA wo
NFPA would define the maximum allowable generic spacing but the vendor data
sheet identifies the specific limitations of the sprinkler based on its UL or
other tested listing.
So if the vendor data says the maximum spacing is 10 ft and you install at 11
ft you’ve installed the product outside
I have had fire code officials request removal of sprinklers or to disable
sprinklers in electrical rooms in the past.
But I digress.
The old FMDS 2-8N used to call for sprinklers in electrical rooms with the same
allowed omission text as NFPA 13. I’d get mixed responses out of various FM
Fax 401-725-1583
Cell 508-277-3473
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: Monday, June 26, 2017 5:44 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: Revi
s its attachments without reading or saving it in any manner. Thank
you.
On Wed, Jul 12, 2017 at 10:22 AM, Prahl, Craig/GVL
<craig.pr...@ch2m.com<mailto:craig.pr...@ch2m.com>> wrote:
Glass windshields as used for automobiles?
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200
Glass windshields as used for automobiles?
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
craig.pr...@ch2m.com
From: Sprinklerforum
FM 200 isn’t effective with this type of hazard. With lithium batteries being
charged, overcharging or a defect can lead to a thermal run-away condition
which causes the batteries to vent. When they do that, the gases being vented
can ignite. The danger is that while a suppression gas might
Yeah there’s lithium polymer (LiPo) and LiFe and others. That’s what makes our
job so much fun! J
The story about the testing was that it had to end due to limited funding.
Burning up lithium batteries is expensive.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
There are some great details on opening protection in the FM Data sheet 1-23
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
craig.pr...@ch2m.com
From: Sprinklerforum
The fire was from construction materials stored under the bridge but the State
DOT. The bridge has already been repaired and is back in service ahead of
schedule. But it goes to show that storing combustibles below a non-protected
“non-combustible” structure can still result in the failure
A bridge or trestle doesn’t fall under any building code occupancy group since
its use and purpose is very different than any occupied structure which is
dealt with by the building and fire codes.
Had this discussion with an AHJ.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae
...@lists.firesprinkler.org
You can reach the person managing the list at
sprinklerforum-ow...@lists.firesprinkler.org
When replying, please edit your Subject line so it is more specific than "Re:
Contents of Sprinklerforum digest..."
Today's Topics:
1. RE: Parking Under MTA Tracks (Prahl,
I’d be highly surprised if anyone could guarantee 100% circulation in the
system to prevent freezing. I wouldn’t put my name on it.
But if presented with an unheated area I’d prefer to use Dry or preaction in
lieu of heat tracing an entire wet system. That just doesn’t make sense.
Craig L.
Rachid,
I would highly recommend you secure the assistance of an experienced fire
protection design person or company.
Fire protection design is not something you do just by opening a book and
placing sprinklers in a room.
Also, the software that is used for calculating sprinkler design is
8” absolute minimum but closer to 12” typically above the ceiling. It also
depends on the lay-in light fixtures purchased and clearances required for
removal.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
There is no "fire protection design" for REVIT. We use it to do layouts but
you are manually piping the system and locating sprinklers. Nothing is
automated, you still have to manually input data into your calc program. It's
a little bit clumsy to use, you have limited components with which
Read the Table again. 10ft and 15 ft are for “containers”, you stated you also
had plastic IBCs so those heights don’t apply to IBCs. Go back to chapter 9
for definition of containers and other General requirements.
An inadequate sprinkler system is the same as unsprinklered. An OH2 dry
Agreed, if a system is to be installed, it is to be installed per the
applicable Standard and Code requirements. However one question is, what use or
occupancy was the building originally designed for?
It seems odd that an AHJ would require only an OH2 if he knew they were storing
combustible
You need to also be referring to the applicable Fire and building Code for
hazardous materials and flammable/combustible liquids. NFPA 30 is not the
end-all of requirements.
I’m not understanding what you mean by the “maximum allowable quantities have
been met”. Are they at the maximum
Steam turbine driven pumps are in Chapter 13 of NFPA 20.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
craig.pr...@ch2m.com
From: Sprinklerforum
Where does that note come from? The AHJ or owner or Engineer of Record?
Either way that info should be provided by the Engineer of Record to the
installing contractor to be included in submittals to the AHJ. I would
certainly hope an Engineer is not dumping this off on the installing
an ESFR system without a pump from a 20" water
main.
What is the poor reliability aspect Concern?
Art
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: Tuesday, June 13, 2017 5:17 PM
To:
sprinklerforum@lists.firesprinkler.org&l
What about using Single Interlock Preaction? You could use heat detection in
lieu of smoke detection depending on environmental conditions.
Heat tracing a complete system is a disaster waiting to happen IMHO.
Also the Heat trace system must be electronically supervised to insure
operability.
FM adherence is not a requirement unless you’re directed by the OWNER to adhere
to FM recommendations. Just because FM publishes a Data Sheet doesn’t mean
every portion will necessarily be followed.
The specifications should explicitly state what is to be followed and to what
degree as this
A unit heater with t'stat, or ducted heat into the room. Something that is
fixed in place, not someone's bathroom portable heater plugged into an outlet
in the riser room.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax -
http://www.mfpdesign.com
https://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/in/travismack
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Cra
hightail.com/u/MFPDesign
LinkedIn: https://www.linkedin.com/in/travismack
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: Monday, June 26, 2017 2:44 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprink
The raw fiber isn’t a class III, it won’t burn, actually burning it, the
Carbonization process, “burns” the material. The spools on which the fiber is
wound are actually more of a hazard (and not really much of one) than the fiber
itself.
The finished product shouldn’t be sensitive to water
I wouldn't waste my time or money arguing with him. It's hard to battle
arrogance. He is the engineer of record and he stamps the design, he is
responsible for it.
Design it his way and keep good records of all conversations and documents.
The piece of paper on the wall all too often means
Are these servo motor articulated or use hydraulic fluids?
If there are no hydraulic fluids or other contributing hazards, the building
may be able to classified as an F-2 occupancy and no sprinklers required.
You might also investigate the possibility of a water mist or hybrid water mist
If they are standard IBC steel caged totes I would consider them stable.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
craig.pr...@ch2m.com
From: Sprinklerforum
One thing to keep in mind, some manufacture’s recommendations do not permit
full totes to be stacked more than 2-high. Empty may be different. Check with
the Tote vendor on their stacking limitations.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
If the chemicals used could harm brass sprinklers, the cars stand no chance of
survival.
Plus the wash spray is typically focused more downward around the car than
upward at the underside of the roof where the sprinklers reside.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae
-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: Thursday, October 12, 2017 2:03 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: Car Wash Station
If the chemicals used could harm brass sprinklers, the cars stand
if that is really an issue or not, but I would probably use white
poly heads. Cost difference is basically negligible.
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: Thursday, October 12, 2017 2:17 PM
While all of that is true, there are times when you just cannot provide a wet
standpipe such as in this case.
However, from some discussions I’ve had, they would not charge into a fire
until flow is established at the riser.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
>From past design discussions, this section assumes the area in which the
>booths are installed is protected by an automatic sprinkler system and that
>sublevel sprinklers are provided within the spray booths. The sublevel
>sprinkler array in the booth(s) being provided with a control valve of
If it is a simple NFPA 16 type foam-water system, expansion is a non-issue.
AR-AFFF or AFFF are not intended to expand to fill a space, their expansion is
very minimal as they are intended to blanket.
Would you worry about someone drowning in the room if it were water-only
sprinklers?
If ALL
1. Why are they asking for 7 heads in a 300 sq. ft. room? Does this include
sub-level heads below obstructions?
2. Are you providing high expansion foam, only HEF will “fill a room”.
3. Foam-water systems are typically provided to protect areas subject to
pool fires. The idea is to
I can’t see stretching the definition of a carport to include a parking space
located directly below an occupied space? It’s a parking garage level.
I don’t think there’s anything fuzzy about what a carport would look like
versus a parking deck/parking garage. Based on the Merriam Webster
fitting/escutcheon with a gasket to make a tight connection to the ceiling, so
nothing could transfer from the concealed space into the clean room.
Larry Keeping
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: October-17-17 4:17 PM
Same basic concept as the TYCO boot.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
craig.pr...@ch2m.com
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
What would be the fuel source?
Nice warm space = squirrel nesting material?
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
craig.pr...@ch2m.com
From: Sprinklerforum
If you have a LH or OH criteria where the concealed heads can be used, one
method that was approved by one of the big insurers for a similar installation
used the TYCO DSB-2 dry sprinkler boot on the sprinkler drop. The boot was
placed over the drop and sealed against the upper side of the
the top of the cup is required.
On Wed, Oct 18, 2017 at 4:31 PM Prahl, Craig/GVL
<craig.pr...@ch2m.com<mailto:craig.pr...@ch2m.com>> wrote:
The cover is held on by solder tabs which melt and release the cover when the
setpoint temperature of the cover plate is reached.
You can a
with a gasket to make a tight connection to the ceiling, so
nothing could transfer from the concealed space into the clean room.
Larry Keeping
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: October-17-17 4:17 PM
To:
sprinkle
When the NFPA Standards do not specifically address a particular situation, it
is common to reach out to other recognized industry standards for guidance. FM
Data Sheets often provide that info or you may find other Standards or Industry
Practices/Guidelines that address a unique condition
No one can be an expert in ALL things but one should be working to become an
expert in MORE things.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
craig.pr...@ch2m.com
From:
I'm always curious about what type of fire suppression system existed or if
there even was one when an event such as this occurs. Glad there were no
serious injuries.
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax -
I'm wondering what the consensus is amongst the group here on a couple issues
as I look towards making some updates to our project specifications.
#1, the use of 1" grooved pipe and fittings versus threaded. This would be
using Sch. 40 pipe. I saw a presentation which if I were still a
...@lists.firesprinkler.org>]
On Behalf Of Prahl, Craig/GVL
Sent: Wednesday, November 08, 2017 4:29 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: Fabric Ductwork - ESFR obstruction?
Some of the fabric duct is designed not to co
Some of the fabric duct is designed not to collapse. I’m assuming this has
been verified as not being that type?
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
craig.pr...@ch2m.com
General Air Products has a chart on their web page. Go to pg. 12
https://www.generalairproducts.com/media/files/GAP-fire-protection-air-compressors-brochure.pdf
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
rs Saves Lives
On Dec 6, 2017, at 1:47 PM, Prahl, Craig/GVL
<craig.pr...@ch2m.com<mailto:craig.pr...@ch2m.com>> wrote:
This section of pipe would not be a fire main, it would be part of the domestic
water service, installed under the plumbing code by the plumber, not the
sprinkler
://www.firesprinkler.org<http://www.firesprinkler.org/>
Fire Sprinklers Saves Lives
On Dec 6, 2017, at 1:47 PM, Prahl, Craig/GVL
<craig.pr...@ch2m.com<mailto:craig.pr...@ch2m.com>> wrote:
This section of pipe would not be a fire main, it would be part of the domestic
water servic
When I doubt, make a call. It’s not that hard. If you can’t find the
information on the State or local Fire Department, Code Enforcement or Building
and Construction websites, make a call.
Google the state or city and enter “fire codes” or “building codes”, then check
several of the links
Why would you put a flow switch on the pump supply running through the
building? I’m assuming this is from a potable source? If so, how is it any
different than any other potable water service line running through the
building? Why would he chances of this line leaking be any greater than
And that is the question. Why isn’t the BFP installed back at the origination
of this 200 ft section as it comes out of the ground?
Craig L. Prahl
Fire Protection Group Lead/SME
CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
Of Prahl, Craig/GVL
Sent: Wednesday, December 06, 2017 2:55 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: High-Rise with Secondary Water Supply
Why would you put a flow switch on the pump supply running through the
building? I’m as
There's nothing prohibiting you from flowing multiple hydrants. In some cases,
you absolutely have to such as when you have large Fire Flow values.
Ken's direction is spot on, it's an easy calculation. Use
At times when we have had looped mains we have had to prove flow capabilities
with
You could use multiple pumps to achieve the desired flow rate but there would
be no advantage in doing so. You would ultimately cost the owner more money in
up-front installation costs as well as long term maintenance and inspection
costs.
I do a lot of large flow facilities where 8,000
ail.
Matt
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: Wednesday, December 20, 2017 7:34 AM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: Multiple Pumps
Y
Typically large material conveyors such as this are deluge systems but they can
be wet or dry or preaction depending on the size, length and arrangement and
value. Overland materials conveyors I've worked on were segmented into 100-200
ft sections based on whatever the water supply can handle
Not necessarily, you could use the provision of dissimilar adjacent hazards
where you extend the more demanding design criteria 15 ft beyond the limit of
that area per 12.3 (1) (2016 NFPA 13).
Craig Prahl | Jacobs | Group Lead – Fire Protection | 864.676.5252 |
craig.pr...@jacobs.com |
What is the tunnel for? When you say utility, what kinds of systems conveying
materials are being run through the tunnels?
Either way, a utility tunnel typically won’t meet the whole definition of
8.15.1.2.2. Since it is accessible, it is really no different than a utility
room or other
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From: Sprinklerforum
<sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>>
On Behalf Of Prahl, Craig/
Typically, propane tanks are stored in steel mesh cages not enclosed boxes.
Same for the oxygen bottles. If these are in a flammable storage cabinet, then
that’s another issue.
NFPA 55, 6.10 provides design criteria guidance based on the type of gas.
Overhead sprinklers are standard fare,
When sizing a water storage tank for fire protection do no forget the IFC code
requirement for Fire Flow in section 507. It's an additional water supply
requirement apart from sprinkler flow. This is especially critical if the
municipal supply is not sufficient to meet the required flow rates
Had a question raised about whether or not there is a code or standard
requirement for a heat detector in a standalone diesel fire pump house. I’ve
hunted through just about every resource I’ve got and have not found any
requirement on either heat or smoke detection.
Have I missed something
They don't use the term ESFR in their documentation. They do however describe
the types of sprinklers such a Quick Response Suppression style storage
sprinkler or similar jargon.
Craig Prahl | Jacobs | Group Lead - Fire Protection | 864.676.5252 |
craig.pr...@jacobs.com |
The Standard says within itself that it is not the intent to apply this
standard just because a computer is present. Obviously common sense and good
engineering judgement should be applied when determining the applicability of
the Standard. It's not a one-size-fits-all solution or guide.
fpoint.com/v2/url?u=https-3A__www.hightail.com_u_MFPDesign=DwMFaQ=OgZOSER8c1RLeytEexU279Q2qk0jVwkrOdYe5iSi-kk=6qYbbLx8x0UrMujmEGNoh-2hzoFD2d1EB5d2sQF0_OI=EpLUAOR23O-8xVojIlUTgQxQLXZuulkZ__R8b-34160=K0gvUuMMKDClrXq8g0eSvguuW1CSjlfR33oOpm4FFV4=>
Sent from my iPhone
On Jun 26, 2018,
I have a system that was originally designed with a fire pump taking suction
from an elevated municipal water tank. At some point in time the system source
was changed from the tank to a municipal water supply. This change has
resulted in the system pressures being well over 200-250 psi. So
arious floor levels.
Matt
From: Sprinklerforum
mailto:sprinklerforum-boun...@lists.firesprinkler.org>>
On Behalf Of Prahl, Craig/GVL
Sent: Wednesday, June 27, 2018 10:34 AM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: [EXTERNA
;
On Behalf Of Prahl, Craig/GVL
Sent: Wednesday, June 27, 2018 11:09 AM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: [EXTERNAL] RE: Real system pressures versus the calculations
Matt, the point is, that when the pump starts it int
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“The bitterness of poor quality remains long after the sweetness of low price
is forgotten.”
From: Sprinklerforum
mailto:sprinklerforum-boun...@lists.firesprinkler.org&g
R67Hld0rY=EMtRTfazpYo9Jqx2Sw8CRcqLKHDKE_c9kkImir7w8dU=>
Fire Sprinklers Saves Lives
On Jun 27, 2018, at 8:21 AM, Prahl, Craig/GVL
mailto:craig.pr...@ch2m.com>> wrote:
I have a system that was originally designed with a fire pump taking suction
from an elevated municipal water tank. At some point in time the system source
8.15.14 doesn't apply to this application. That section is for grated
"ceilings" installed below sprinklers.
Trellis construction being open is similar to a pergola where there is no
ceiling/roof.
Being open, you can't trap heat or smoke as long as they don't plan to let
plants grow on the
Noh-2hzoFD2d1EB5d2sQF0_OI=GPz5cbJKDt5fO5kVrASI03foPAM1A7VWPJWXcqFI_qo=uE4TJL78cXsNlZL-atfB7HxpJ688ObFjrbV-cfbLixM=>
Sent from my iPhone
On Jun 25, 2018, at 8:24 AM, Prahl, Craig/GVL
mailto:craig.pr...@ch2m.com>> wrote:
8.15.14 doesn’t apply to this application. That section is for grated
“ce
gt;
Send large files to MFP Design via:
https://www.hightail.com/u/MFPDesign<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.hightail.com_u_MFPDesign=DwMFaQ=OgZOSER8c1RLeytEexU279Q2qk0jVwkrOdYe5iSi-kk=6qYbbLx8x0UrMujmEGNoh-2hzoFD2d1EB5d2sQF0_OI=ldfn84awZfQoxMvvMFaimdThYgKV-8RmhSM65xJt1_E=dWDdPsdpT1p-pakOnYfQtS7u
Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL Extension 77540
craig.pr...@ch2m.com
From: Prahl, Craig/GVL
Sent: Wednesday, January 24, 2018 2:48 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: powder coating ovens [EXTERNAL]
Chapter 30 of the IFC
sprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>>
on behalf of Prahl, Craig/GVL
<craig.pr...@ch2m.com<mailto:craig.pr...@ch2m.com>>
Sent: Wednesday, January 24, 2018 3:57 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkl
What is the actual spacing between the rollers?
We have at times had to provide spray beneath conveyors since that is an area
where debris could accumulate and often where drive units were located.
Is this conveyor covered? I'm curious since you stated it was protected by
ESFR which is a bit
Chapter 30 of the IFC deals with ovens/furnaces. First determine the Class of
the oven based on its use.
If your process falls into the definition of use for a Class A or Class B oven
per Section 3006, internal fire protection is needed.
Powder Coating curing ovens are often considered Class
inkler.org] On
Behalf Of Prahl, Craig/GVL
Sent: Wednesday, January 24, 2018 1:44 PM
To:
sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>
Subject: RE: Conveyors
There are numerous occupancies with conveyors with numerously different
cleanliness standa
There are numerous occupancies with conveyors with numerously different
cleanliness standards and numerous different types of material being handled.
Not every place fits into this nice neat tiny little box you describe.
Craig L. Prahl
Fire Protection Group Lead/SME
JACOBS - CH2M
200 Verdae
02 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: Re: Conveyors [EXTERNAL]
nope
From: Sprinklerforum
<sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>>
on behalf of Prahl, Craig/GVL
<craig.pr...@ch2m
Tires are tires. Tires are not plastic milk jugs.
Today's modern tires are a composition of numerous materials. Natural and
synthetic rubbers are used in various proportions depending the tire use group.
But regardless, synthetic rubber or not, the chemical characteristics,
ignition and
If you were dealing with purely synthetic rubber in slabs that would be a whole
different story. But a slab of rubber is different than a tire.
Craig L. Prahl
Fire Protection Group Lead/SME
JACOBS - CH2M
200 Verdae Blvd.
Greenville, SC 29607
Direct - 864.920.7540
Fax - 864.920.7129
CH2MHILL
ode allows omission of sprinklers under
conveyors yet?
Mike
From: Sprinklerforum
<sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>>
on behalf of Prahl, Craig/GVL
<craig.pr...@ch2m.com<mailto:cra
: Sprinklerforum
<sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>>
on behalf of Prahl, Craig/GVL
<craig.pr...@ch2m.com<mailto:craig.pr...@ch2m.com>>
Sent: Wednesday, January 24, 2018 4:45 PM
To:
sprinklerforum
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