My concern is with the FDC. If the 3 valves are shut to isolate the BFP, then
the FDC is also shut off
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080
www.fpdc.com
On Aug 1, 2013, at 10:48 AM, "Ford, Charles" wrote:
> I can't remember when we started, but NEW
I'm on the road and don't have all my code stuff so I would appreciate a little
help. I am looking at an existing riser with the following sequence of
material: OS&Y, backflow preventer, Tee to FDC, then to 2 risers, each with
control valve and alarm valve. There is no valve on the discharge of
;>>>> placards.
>>>>>>>>>> The main thing to keep in mind that the intent is
>> simply to
>>>>>>>>>> fully EXERCISE the BFP at what os expected to be the
>>>>>>>>>> system
>>>>>
>>>&g
Wax coated is the best option I have found. Deal with salt air all the time. Is
there a design allowance or other factor that makes SR a problem?
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080
www.fpdc.com
On Jul 22, 2013, at 10:36 PM, Charles Thurston wrote:
Has there ever been an instance of system failure due to the backflow not
properly opening? How about detection of a BFP problem during a full flow test.
How about something subsequent to the initial acceptance?
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080
ww
Very sorry to hear this. Like others have said, I only met him once but his
impact on me via the Forum has been immeasurable. Condolences to Cathy and his
family.
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080
www.fpdc.com
On Jun 27, 2013, at 10:09 AM, Ken H
What about Tyco Attic heads?
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080
www.fpdc.com
On May 20, 2013, at 10:30 AM, "Jeremy Frazier"
wrote:
> We are sprinklering an attic in a building with non-combustible metal
> trusses 2'-0" on center. The only reason
Did they make heads for regular use with the old small deflector in 1954?
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080
www.fpdc.com
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Only if you really stretch the definition
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080
www.fpdc.com
On Apr 8, 2013, at 9:13 PM, "John Drucker" wrote:
> Does it qualify as a power production facility
> John Drucker - Mobile Email
>
> - Original Message
There are a few other terms out there that are a little less family friendly.
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080
www.fpdc.com
On Apr 8, 2013, at 8:15 AM, Richard Mote wrote:
> Back in the dark ages 1978 I heard a fitter refer to extension pieces
One more quick one: I worked on a project for a new fire house about 15
years ago where domestic materials were required. The Fire Marshal (a
dis-barred lawyer) shut down the job and sent a notice of intent to sue to
my client because the threaded rod was not STAMPED with "Made in USA". It
worked o
Chris,
The only time I have seen this is where a full secondary water supply is
required, mostly by insurance company standards. Check with FM Global's
Maximum Foreseeable Loss requirements.
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080
-Original Mes
The pressure from multiple FDCs is not additive, if all is installed properly
and assuming the FD pumper discharge is pressure regulated. The only potential
problem I see is if the FD boosted the supply at the pump and it pressurized
the yard system that included hydrants where a second boost to
Here's the link to the editorial.
http://www.lowellsun.com/editorials/ci_22338415/condo-tragedy-sprinkler.
(apparently Skygrid won't lewt you forward links even though they say you can)
Not sure who wrote it, but it is a positive for our industry. There have been a
couple of high profile condo
The space I am working on has a myriad of arrangements. Some have cloud hanging
down 18 ft from the roof deck with 4-5 ft openings to the walls. Other spaces
have sheet rock ceilings coming out 5 ft from the wall, a 1' gap and then an
acoustic tile ceiling cloud in the middle (elevations within
OWE 570-837-6335 fax
>g...@rowesprinkler.com
>
>
>
>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Williams
>Sent: Wednesday, January 02, 2013 4:13 PM
>To: sprinklerforu
What is the latest poop on cloud ceilings? I am looking at a job with 30 ft
roof deck, ceilings at 11'-0" +/- with gaps ranging from 1'-0" to 4'-0".
Definitely heads above and below, but what about calcs?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860.535.2080
www.fpd
>>>
>>>>> Date: Fri, 28 Dec 2012 13:57:21 -0500
>>>>> To: sprinklerforum@firesprinkler.org
>>>>> From: t...@fpdc.com
>>>>> Subject: RE: FDC location with riser manifold
>>>>>
>>>>> That has basically b
ed in: MN
>
>
>
>
>
>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Williams
>Sent: Friday, December 28, 2012 12:57 PM
>To: sprinklerforum@firesprinkler.org
>Subject:
e - One Sprinkler at a Time"
>
>
>-Original Message-
>From: Todd Williams [mailto:t...@fpdc.com]
>Sent: Friday, December 28, 2012 12:32 PM
>To: sprinklerforum@firesprinkler.org
>Subject: FDC location with riser manifold
>
>I had an AHJ come back with a co
I had an AHJ come back with a comment regarding a location of an FDC on a
system I designed. The system has a single riser. The water main comes into the
building approximately 1'-6" AFF. An elbow is installed and the backflow
preventer is running horizontally parallel to the outside wall. The m
Daniel,
This is somewhat parallel to the boat storage rack issue, for which there is no
definitive answer. The SF Bulletin sounds like a reasonable approach. Our
European brethren have a little more experience with this type of facility.
Hopefully some of them will chime in.
Great city. Long
Vince,
You may not find the 2" drain on the dry system worthless after a trip test and
it may be advantageous to pipe it to the outside wall (even if partially
trapped). That being said, from what my understanding is that the 2" drain test
is to verify that the valves are open and that by compa
wance from those numbers -
>that would get you down to 400 gpm.
>
>Ed Kramer
>Lawrence, KS
>
>> -Original Message-
>> From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-
>> boun...@firesprinkler.org] On Behalf Of Todd Williams
>>
t demanding area and size the pump
>based on that. I can even see a (250,125) pump. Why does the owner want a
>separate pump and tank? Just curious.
>
>-Original Message-----
>From: Todd Williams [mailto:t...@fpdc.com]
>Sent: Thursday, December 20, 2012 7:51 AM
>To: sprinkler
Here is something I haven't run into before. I building owner has multiple
buildings fed from a common pump and tank. He wants to take one of the
buildings and disconnect it from that system and provide a pump and tank just
for that building. The building is entirely Light Hazard (offices, dayca
Tony,
I am just getting started on a similar project, but not in Canada. I'm assuming
the 2" side of the 2x4 is the vertical? My guess is that if you position the
sprinklers at the the 1-1/2" to 4" down and center them between the trusses,
that is going to be about the best you are going to get
Probably already been done.
At 12:09 PM 12/13/2012, you wrote:
>#@*& !#@% ^&%$* !@#$@#$
>
>Might be a good start? LOL.
>
>Bob Knight, CET III
>208-318-3057
>www.firebyknight.com
>
>
>
>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@f
Regardless of what the status of the design or knowledge and background of the
designer is, the comment is inappropriate. Believe me, I've seen some crap, but
personal attacks do nothing but create animosity and make the problem even more
difficult to resolve. Yes the problems needs to be detail
It depends on who the reviewer is. That is a very inappropriate comment to put
in writing. (I may have said something similar when I was looking at a set of
plans, but would never submit that as a response.) It does not address the
problem(s) at hand. If the reviewer has a supervisor or other pe
Tis the season. Never did one of those stores, but I did quote a job this
morning: included a list of 18 items that were critically wrong with the plans
and specs and also informed my client that the architect is also the owner.
They are out there. Best of luck.
At 10:13 AM 12/4/2012, you wro
What is the old roof construction? What is in the space between the old roof
and the new floor which is combustible?
At 07:13 AM 12/3/2012, you wrote:
>We have a nursing home with a setup that I have not seen before. It looks
>like the building was 2 floors originally and they added a third fl
>
>
>
>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Williams
>Sent: Friday, November 30, 2012 10:51 AM
>To: sprinklerforum@firesprinkler.org
>Subject: RE: Sprinklers under p
Since it is a moveable object, sprinkler protection is impractical. However, if
the hydraulic fluid is combustible and there is a leak, fluid could end up
under the platform and the potential does exist for a shielded fire. What is
the surrounding occupancy and what is there for sprinkler protec
;CH2MHILL Extension 74102
>craig.pr...@ch2m.com
>
>
>
>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Williams
>Sent: Thursday, November 29, 2012 3:00 PM
>To: sprinklerf
I have some clown that wants to put a riser in an unheated garage and heat
trace to riser. To do this, we would also have to heat trace all of the devices
at the riser (backflow, alarm valve, control valves, etc). Is there anything
specifically written that states that you cannot heat trace devi
d be more.
>
>2. Dry standpipe has requirements that are generally 10 seconds to water
>when a head releases. Is this dry standpipe on a sprinkler system or stand
>alone?
>
>Norm
>
>On Wed, Nov 28, 2012 at 10:27 AM, Todd Williams wrote:
>
>> 1. When a fire departm
1. When a fire department pumps into an FDC, what pressure would they be
typically pumping?
2. Does anyone have any practical experience or knowledge in using an automatic
dry standpipe? I would think that could be a little scary standing in front of
a fire for 30 seconds with a hose in your ha
Division of the Fire Marshal (Contractor)
>Office of Research Services
>National Institutes of Health
>301-496-0487
>
>"Protecting Science - One Sprinkler at a Time"
>
>
>-Original Message-
>From: Todd Williams [mailto:t...@fpdc.com]
>Sent: Wednesda
I have been asked to bid a design for a horse stable. NFPA 13 lists it under
OH2, but I am concerned about the hay storage area. There is a room on the main
level and a hoist to put stuff on the second floor. And the second floor has a
steeply sloped roof. Any thoughts? BTW, the EoR is useless b
And who is to say the hydraulic fluid will always remain the same
At 12:27 AM 11/27/2012, you wrote:
>Is the sump pump, sensor, oil water separator driven because a head in a
>benign environment is present?
>
>The elevator pit nearly qualifies as secondary containment of fire sprinkler
>water
It would probably depend on the language in the insurance policy.
At 10:24 AM 11/21/2012, you wrote:
>A client posed an interesting question.
>(1) Assume that your sprinklers were required by code.
>(2) Your Insurance rate was based upon being fully sprinklered.
>(3) Your system hadn't been insp
Customer Lounge, Office Area and Service Underwriters desk would all be Light
Hazard. The sales area wasn't mentioned. How big is the "Retail Blvd" in sqft
compared to the rest of the space? If it is a small percentage then I would
say don't get too excited, but I would check with the AHJ befor
The sprinkler fish cheer?
At 11:21 AM 11/15/2012, you wrote:
>Give me an A! Give me an F! Give me an S! Give me an A! What's THAT
>SPELL? AFSA! What's THAT SPELL? AFSA! What's THAT SPELL? AFSA! American
>Fire Sprinkler Association! YAY
>
Todd G. Williams, PE
Fire Protection Design/Consult
I also negotiate it down when I need to. Most of the time it works. When it
doesn't, I go back to the owner and tell him he has to spend $ for a pump
and/or on-site water supply because the AHJ wants another 150 gpm for hose
streams. Pressure from a tax paying business can sometimes change m
Glad to hear the progress. Have seen lots of power trucks heading to NJ from CT
in the last couple of days. Gas is getting to be a problem in the NY/CT border
communities. There was one guy arrested for putting gas in 5 gallon pails to
take back to NJ. My clients have said that all the dry syste
Let's face it, most of the plans and specs we see today are crap. This is just
a way for the Architect/Engineer/GC to subsidize incompetence. And it would
probably lead to more crap as they now see a money stream from it. My guess is
the boobs that included this in the first place will start cha
Run, don't walk.
At 09:16 AM 11/6/2012, you wrote:
>Found something new in a FP spec that I think is worth sharing. Spec's are
>copyrighted by a nationally known FP consultant.
>
>"Excessive assistance provided by the Architect/General Contractor to the
>Contractor, at the Contractor's request,
l be BBQ/grills located beneath them?
>
>Ed Kramer
>Lawrence, KS
>
>>-----Original Message-
>>From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-
>>> boun...@firesprinkler.org] On Behalf Of Todd Williams
>>Sent: Friday, October 19, 20
I would think that question would be best answered by the AHJ. They are the
ones going to be using it.
At 09:34 AM 10/23/2012, you wrote:
>Esteemed Colleagues,
>
>
>
>NFPA 14 (2003, Edition) 7.3.2 (1) Class I Standpipe Locations.
>
>Tells me I need a hose valve at each intermediate landing i
I am working on a project with several apartment buildings that are to be
protected per NFPA 13R. Each of the units (6-8 per building) have entrances
with oversized (roughly 9'-6" x 5'-0") canopies over them. The platform for the
entrance of 2 or 3 steps above grade. It falls under the dictionar
gt;
>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd
>Williams
>Sent: Friday, October 19, 2012 5:39 AM
>To: sprinklerforum@firesprinkler.org
>Subject: RE: Wood pellet manufacturing
&
Contact the Carolinas chapter of SFPE. www.sfpe.org. They are actually having
their Annual Meeting meeting in Savannah, ending today. If you're not busy, you
could take a ride down.
At 06:44 AM 10/19/2012, you wrote:
>Hello Sprinklerforum,
>
> I am looking for an FPE to act as a special inspe
ession may need to be considered I reckon.
>Sorry for my two-bobs worth.
>Cheers
>Jack
>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Williams
>Sent: Thursday, 18 October, 2012 3:53 PM
ect - 864.599.4102
>Fax - 864.599.8439
>CH2MHILL Extension 74102
>craig.pr...@ch2m.com
>
>
>
>-----Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Williams
>Sent: Thursday, October
pellets are for pellet stoves.
>
>
>At 07:37 PM 10/16/2012, you wrote:
>>First thing, verify the spelling? If it is pellets, OH2 for the actual
>>manufacturing area and OH4.5 and double the outside hose for the areas
>>where they get bunched up awaitng shipment. What ar
What are they used for
>anyway, sling-shot amo?
>
>Quoting Todd Williams :
>
>>Any insight into protecting a wood pellet manufacturing facility?
>>
>>Todd G. Williams, PE
>>Fire Protection Design/Consulting
&
Any insight into protecting a wood pellet manufacturing facility?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860.535.2080
www.fpdc.com
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gt;mm) below the structural members, provided that the deflector is not more than
>14 in. (356 mm) below the underside surface of the deck. systems, or other
>reliable means capable of maintaining a minimum temperature between 40°F and
>120°F (4°C and 48.9°C).
>
>Roland
>
>
The Connecticut Fire Safety Code (at least the part that is based on the IFC)
includes a requirement that exterior balconies and patios be sprinkelred in 13R
occupancies. However, this is being interpreted that they have to be protected
regardless if there is any structure above or not. Conseque
I have a system where I want to use the Room Design method for calculating.
However, the room is fed off a dry system and all of the sprinklers in the
communicating spaces are fed from a wet system. Do I include the sprinkelrs in
the communicating spaces, even though they are off different syste
Lets think about this. The pump is going to be on springs and will be able to
move up and down and side to side. When the pump starts, the impeller will
rotate creating a torque. The torque will push down on some springs and lift up
on others. Whereas the torque is usually absorbed by the pad, i
Methinks he is picking nits.
On what basis is he requiring intermediate temperature heads? Does he have
evidence that the maximum ceiling temperature exceeds 100 degF? How does he
know it is 150 degF and not 225 degF? (Table 6.2.5.1) It sounds to me like he
is making something up just because h
Has anyone asked the Waffle Slab Manufacturer's Association to see what their
recommendation is?
At 04:14 PM 9/27/2012, you wrote:
>How are you attaching the unistrut to the rib bottom? If drilling into the
>bottom, that is not permitted. Plus, I know of no unistrut clamp that is
>listed for
Same here. Thanks
At 02:59 PM 9/19/2012, you wrote:
>Ditto :)
>
>Brian Harris, CET
>BVS Systems Inc.
>bvssytemsinc.com
>
>
>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Steve Johnson
>Sent: Wednesda
Galvanizing is a chemical bonding whereas painting is a coating. Painting may
need to be repainted over time. Since it is in a wet environment, getting a
paint to set up properly with proper coating might be an issue. However, a
couple of coats of a two-part epoxy might not be a bad alternative,
>Somehow I just don't understand. When did giving someone a well deserved a$$
>kicking become politics?
>
When the statement was made. As I have been reminded several times, this is a
forum for technical discussions of fire sprinkler systems. A simple
remembrance of something that profoundly
I started with Silver and went to Gold almost immediately. A lot more valuable
features and worth the $. I went to Platinum a while back because there are a
few features that made it worthwhile in my situation.
At 12:05 PM 9/10/2012, you wrote:
>I used Gold all the time when I was working my
Chris, everyone else is out playing golf.
I'm not sure free flowing would apply. It would depend on the packaging. If
they are in individual boxes of 6 or 12, there is a lot of packaging that would
have to burn through in order to create the free flowing event. If they are
loose in a cardboard
I am working on a condo complex where the ground floor is individual parking
garages (some shared by 2 units) and storage closets. The walls and floors are
concrete with no interconnection between the areas. The ceiling is wood frame
with 1 hr rated sheetrock. The space is unheated and will be p
;current editions (24.6.2(13) 2010 ed) is also time well spent.
>
>Roland
>
>On Sep 4, 2012, at 6:25 AM, Todd Williams wrote:
>
>>I am working on a dry system where we have to install some drum
>>drips. However, they will be installed in the cold spaces (outside,
>&
sage-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Williams
>Sent: Tuesday, September 04, 2012 9:25 AM
>To: sprinklerforum@firesprinkler.org
>Subject: drum drip in cold spaces
>
>I am working on a dry s
I am working on a dry system where we have to install some drum drips. However,
they will be installed in the cold spaces (outside, not cooler/freezer). Do
these need to be protected from freezing? Any suggestions how?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860.535
NFPA doesn't, but FM was talking about this a while back and am not sure if the
implemented anything.
At 09:49 AM 8/30/2012, you wrote:
>For the size of the building where this would maybe be a concern, you are
>usually going to have a hydrant loop that goes around the building. In that
>case
Greg,
This occupancy needs to be evaluated by an FPE and he or she needs to make
protection recommendations. This may be covered in NFPA 55, NFPA 99 or similar
documents, but is beyond what a contractor would normally deal with.
Todd
At 02:08 PM 8/10/2012, you wrote:
>Cubic Feet
>
>
>On Fri,
I had to wrestle with this is a church with a 14/12 roof slope. The deflector
distance is for response time and the 5' is for coverage. You end up having to
pick one and ignore the other. The AHJ and/or insurance company should be
consulted on this.
At 04:58 PM 8/7/2012, you wrote:
>I don't kn
ler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Williams
>Sent: July 25, 2012 12:51 PM
>To: sprinklerforum@firesprinkler.org
>Subject: Another well thought out statement
>
>This was a newspaper article in a local paper about a sprinkler system in a
This was a newspaper article in a local paper about a sprinkler system in a
school that I have been working on. The existing system is being flushed,
sprinklers replaced and about a dozen heads added. BTW, I never thought of
compressed air as a "fire-suppressing compound"
"Like the system being
Any examples out there of a pipe schedule system not being able to contain a
fire in a Light or Ordinary hazard occupancy?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860.535.2080
www.fpdc.com
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S
It may take me some time, but let me see what I can do.
At 04:26 PM 7/3/2012, you wrote:
>Todd,
>
>Please do! That would be great!!
>
>
>Cecil Bilbo
>Academy of Fire Sprinkler Technology
>Champaign, IL
>217.607.0325
>www.sprinkleracademy.com
>ce...@sprinkleracademy.com
>
>OUR STUDENTS SAVE L
Cecil,
I'll send you a photo, but the dry valve was replaced in the late 50s - early
60s and a backflow has been added as well. If you are looking for a system that
is 100 years old that has been unmolested, I may have something. There is an
old mill in northeast CT with a long disconnected spr
This is a dry system installed in 1899. The current sprinklers are from 1954
(+/-) and are being replaced due to age. FWIW, we did an internal inspection
and are going to do a full flushing as well.
At 03:19 PM 7/2/2012, you wrote:
>I think your asking if it is acceptable to convert an existi
Electric. There is no storm drain/sewer/septic available.
At 11:45 AM 6/26/2012, you wrote:
>Diesel pump or electric?
>
>It depends, you might be able to pipe to an exterior French drain or storm,
>but in some cases if diesel is present, you may not be permitted to do that.
>Need to check with
Only if they are over 48" wide. Same with storage of cutting tables
At 10:19 AM 6/22/2012, you wrote:
>I have never understood shy the ESFR obstruction rules aren't limited to
>obstructions 36 inches or less below the deflector. If they stored ducts 35
>ft. high in racks would a sprinkler be re
Tough to make the min 18" clearance to storage as well
At 10:11 AM 6/22/2012, you wrote:
>I'd agree.
>Maybe this strategy would work; a veteran FM field engineer looking at a round
>duct and the possible need for dropping a sprinkler under it:
>"Is the building going to burn down because of it,
Lots of different commodities. Probably have to work with more than set of
criteria. You need to get more details from them.
At 07:59 AM 6/20/2012, you wrote:
>I am working on a grocery store and they will be utilizing rack storage
>less than 20'. I have no information on the stored commodity, I
>"Hazen-Williams, PA"
Gotta love it!
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860.535.2080
www.fpdc.com
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Since this is Camp Pendleton, I assume this is a military job to a military
spec. Do you mean this is something that is not being micro-managed somewhere
in the mass of paperwork?
At 08:30 AM 6/19/2012, you wrote:
>Chris, while I am sure you know about the requirement for a sprinkler system
>t
At 12:48 PM 6/15/2012, you wrote:
>look at A.11.1.2 for having 2 occupancy classifications and 2
>densities within one remote area.
>
>Roland
>
OK, but what about head spacing?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860.535.2080
www.fpdc.com
CPVC? Cover the pipe with carpet?
At 03:20 PM 6/14/2012, you wrote:
>An architect has contacted me concerning remodeling of an existing radio
>station.
>
>
>
>"They have broadcast studios which are isolated double walls which are
>structurally independent of the building framing in order to isol
;the drawings?
>
>Tony
>
>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Williams
>Sent: June 14, 2012 9:05 AM
>To: sprinklerforum@firesprinkler.org
>Subject: Drop out ceiling tile area
>
>PO Box 407, Middleburg, PA 17842
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>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Williams
>Sent: Th
6/14/2012, you wrote:
>Sounds like it was improperly designed from the beginning or was a pipe
>scheduled system. Going from 16.8 to 19.5 gpm is not creating the 258 psi
>shortage. I don't see relocating sprinklers will fix this problem.
>
>- Original Message -
>F
partanburg, SC 29304-0491
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>-Original Message-
>From: sprinklerforum-boun...@firesprinkler.org
>[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd Willia
This is one of the things I often get confused about. I am doing a renovation
to an existing system with SR sprinklers and have to calc a 1500 sqft area. The
area of the actual work is 440 sqft and is LH. Included in the 1500 sqft area
is a 475 sqft prep kitchen (which is OH) with L-shaped commo
ET III
>> 208-318-3057
>> www.firebyknight.com
>>
>>
>>
>> -Original Message-
>> From: sprinklerforum-boun...@firesprinkler.org
>> [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Todd
>> Williams
>> Sent: Thursday, June
Is there a restriction on the square footage that can be protected by a system
above a drop-out ceiling? A fire marshal was telling me that there is a
restriction in NFPA 13, but I've never heard of it and can't find it. Thoughts?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington
You can re-use old pipe (unless it is 3/4" or smaller), but not sprinklers.
It's just not the most efficient or cost effective if you have to re-cut and
relocate.
At 10:43 AM 6/14/2012, you wrote:
>All,
>
>My company is bidding a project that states in the specs to re-use the old
>sprinkler p
1989 section 5.2.3.1 includes it in the last sentence. The other editions (at
least later ones) had it as a separate section.
At 11:03 AM 6/11/2012, you wrote:
>http://dbase.firesprinkler.org:591/online_archives/tech_interps/FMPro?-db=informal-interps.fp5&-format=record_detail.htm&-lay=form&-re
1994 section 3-2.3.2 says no dry grids, Ditto same section in 1991
At 10:56 AM 6/11/2012, you wrote:
>Would anyone know when dry grids were taken out of NFPA 13? My recollection is
>mid 1980's, but don't have a copy to check.
>
>We've encountered a dry-pipe system installed circa 1999, purporte
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