We deal with this all the time. Lacking any direction in 13 it just comes down
to what the AHJ will accept? It's ridiculous to not allow standard SSP
obstruction rules for ESFR's if there is no storage but that is my opinion as a
contractor.
We are just completing a demo and retrofit of a
Wouldn't 8.3.2.1 ('13) apply? It allows ordinary and intermediate temperature
to be used throughout buildings. Doesn't 8.3.2.1 make it okay to use
intermediate temperature throughout the nursing home?
Ron F
-Original Message-
From: Sprinklerforum
New in the 2010 Edition. It's explained very clearly in the 2010 Handbook. the
standard now groups ordinary and intermediate temperature sprinklers together
and allows intermediate temperature sprinklers throughout the building,
reducing the need for multiple types of sprinklers.
Ron F
Heat trace? Florida?
Ron fletcher Sent from my iPhone
On Apr 22, 2015, at 12:37 PM, Pete Schwab pe...@waynefire.com wrote:
I am searching for an installer of heat tracing (Listed for fire protection)
in Florida
If you have a contact you can share it is greatly appreciated.
Thanks
My hard copy of 409-2011 edition is the same as Greg quoted. 6.1.2 Group I
aircraft hangar storage and service area shall be provided with protection in
accordance with 6.1.1 or with automatic sprinkler protection as specified in
Section 7.2 and 7.8. When I pull up 409 go on line 6.1.2 is as
Just curious, do you have a code reference for mech rooms as OH1?
Ron fletcher Sent from my iPhone
On Apr 1, 2015, at 6:35 AM, Matthew J Willis ma...@rapidfireinc.com wrote:
I had the 10 in parenthesis, my apologies
Also I forgot to add.., OH1 because it is a mechanical room after all.
With 3 pumps, 2 needed and one backup the suction and discharge header should
be sized for 2 pumps. 16 pipe would result in a suction velocity of less than
10 fps, I believe that is the recommended limit in NFPA 20. All common pipe
subject to the full flow of two pumps should be sized
We always split the systems where the K factor changes. However, if the
addition is small the total area is under 40k sqft you would probably have to
change all the heads on that system to K17.
Ron F
-Original Message-
From: Sprinklerforum
Makes it more fun proving to a contractor that it's a NEW change.
Ron fletcher Sent from my iPhone
On Feb 20, 2015, at 3:01 PM, Roland Huggins rhugg...@firesprinkler.org
wrote:
NFPA has at least temporarily stopped flagging the sections that have
changed. Not sure how long this will
10.6.3.1* (13 Ed.)
The requirements of 10.6.2(2) and 10.6.2(3) shall not apply where fire service
mains enter under the building no more than 10 ft (3 m) as measured from the
outside edge of the building to the center of the vertical pipe.
Ron F
-Original Message-
From: Sprinklerforum
Many times we have done two submittals. One to the AHJ with all NFPA
requirements and another to FM with their requirements. One example is the
local AHJ may require a 10% reduction to the flow test and .2/1500 for OH2. FM
does not mandate any reduction to the flow test but will require .2/2500
Like shipping, unpacking and installation only applies the proper and necessary
stress for the sprinkler to operate as intended. Or maybe the engineering is so
precise that the sprinkler can only stand the rigors of being threaded into a
fitting once and then it's useless. Or maybe there are
I have always just done cowboy math to give them a rough idea of delivery time.
Volume of system piping/demand gpm=approximate time (500 gallon volume/1000 gpm
demand = .5x60=30 seconds) to get water to the last generator. There will
typically be at least one timed discharge test with just
We build what we call a pump in a box 10'X18' but it could be made smaller to
house only risers. They are structurally designed for the conditions at the
intended location, all metal siding and roof with a structural steel base.
Pre-piped, insulated, heated, lighting, fire alarm conduit and an
We have started running the bypass line on the floor instead of over the pump
as usual so that it can be braced to the floor. Sometimes there isn't anything
around a pump to brace to other than the floor. We also brace the legs of the
fuel tank to the wall or floor.
Ron F
-Original
Things are a pain. They have to be plugged for the 200# test. Then drain the
system to reconnect. We put a ball valve before the relief so we can test and
reconnect without draining.
Ron fletcher Sent from my iPhone
On Jan 7, 2015, at 12:05 PM, Aaron Peck amp...@me.com wrote:
I wonder if
What edition of 13 are you using?
Ron fletcher Sent from my iPhone
On Jan 5, 2015, at 12:16 PM, Steve Leyton st...@protectiondesign.com wrote:
So ... I get hired to write a tech report on an S-1 occupancy and it's
pretty straightforward since the existing (brand new and never occupied)
I did the flow test. S-170 R-155, 3950 gpm through a 4 diffuser. The best part
was at a meeting when the Fire Marshall said that they may reject our plans
because required fire flow is 4,000 gpm and the flow test was 50 gpm short. I
am not kidding. Luckily we they approved our plans despite the
If there are rack uprights with horizontal and diagonal bracing but no
permanent fixed solid shelving I would say that you have transverse flue
spaces. My 2 cents.
Ron fletcher Sent from my iPhone
On Dec 9, 2014, at 5:25 PM, Greg McGahan g...@livingwaterfp.com wrote:
Storage of non-typical
Absolutely agree with you about the non-value of extrapolating the flow test
beyond the observed flow. The part I'm not so sure I would agree with is
requiring the 20 psi minimum at the onsite hydrants. The IFC commentary notes
that the 20 psi is used because it is the recommended minimum
Sounds like you are K'ing the overhead system into the racks, if should the
other way around. K the racks into the overhead system. Personally I would
revisit the calc's and make them balance. A 15 psi difference is too far apart.
Ron F
-Original Message-
From: Sprinklerforum
noun: supplement; plural noun: supplements - something that completes or
enhances something else when added to it.
How can the possibly pressure be supplemented? Using enough pressure to open
the FDC check valve will close the valve in the riser. The rule should be
changed to either calculated
We have been working in CA for some years now and it seems like something new
and counterintuitive comes up every time we start a new project. A GC is
telling us we have to get a CA Department of Industrail Relations, Division of
Occupational Safety Health (CAL/OSHA) safety permit. It is
If your contract requires you to meet both I would double check everything you
do against the FM Global data sheets. We have come across some differences that
are, let's say counterintuitive. For instance FM no longer seems to recognize
concrete twin tee construction like NFPA does. FM limits
I have always thought every USACoE project required seismic bracing no matter
the location. I believe (going by memory) that a coupling is required within 2
ft. of an expansion joint and the 6 elbow thing at a seismic joint.
Ron F
-Original Message-
From: Sprinklerforum
1.7 New Technology Nothing in this standard shall be intended to restrict new
technologies or alternate arrangements... Based on the recently discussed
conservative committee actions I would think that anything in the later
editions of 13 should be allowed as an alternate arrangement. Say
I will more than likely be admonished for this, again. But it's more likely the
hole occupied by an uniformed, unqualified or unreasonable AHJ.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Bill Brooks
Sent: Monday,
Very effective, we use them all the time.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Mike Hairfield
Sent: Thursday, October 02, 2014 10:48 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: Pressure Limiting
They add $3-5k to the price of a pump. Depending on static versus residual they
can really payoff in usable pressure without having to be concerned with the
churn pressure.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf
If it is in a seismic zone. We do 4 ways at the top of risers only even though
Phoenix is not in a seismic zone. Maybe that is what he saw.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Steve Leyton
Sent: Friday,
Ironic that the ETL also requires surge tanks. Belt and suspenders or ignorance?
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Reed A. Roisum, C.E.T.
Sent: Tuesday, September 16, 2014 10:32 AM
To:
I have seen a gimbal type arrangement used above ground outside. I guess if
freezing is an issue a hot box or putting it in a vault would be an option. I
have some pictures if that would help. Sorry I don't have any manufacturer or
model information. They were used on a COE job on an Army base.
Battlefield earth?
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of rongreenman .
Sent: Monday, September 08, 2014 9:42 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: Re: fume hood / dust collector - sprinklers in?
Some jurisdictions around here require what we call feel good bracing. They
don't require calculations, or that the building be designed to any seismic
standard, they just want the minimum bracing. If we want a green tag we have to
put it in. I guess in this case the question would be if the
If I did I would have a pile of hold harmless up to the ceiling. We call them
piping alignment braces, you know to help keep the piping in a straight line.
Where's the liability in installing too many supports?
Ron F
-Original Message-
From: Sprinklerforum
Seems to me the AHJ's need the education more than the contractors.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of wmens...@comcast.net
Sent: Friday, September 05, 2014 8:58 AM
To: sprinklerforum
Subject: Re: Seismic
Since it is an existing building I doubt any of the things you have listed will
be done. I guess I look at getting it done without doing any harm so the owner
can use the building. The alternative appears to be telling the owner it's not
their responsibility and that he has to get an architect,
I disagree. S-1 occupancies have roof slopes less than 2/12 so they are
considered flat and I have seen many ceilings that are sloped greater than
2/12. Also there are warehouses with a couple high bays of 50-60' with the rest
of the building at 40'-36'. Applying NFPA's interpretation would
I would say the maximum height is meant to apply the area of storage and not
the maximum height of the entire building. A.17.2.3 Storage in single-story or
multistory buildings can be permitted, provided the maximum ceiling/roof height
as specified in chapter 12 is satisfied for each storage
Wouldn't be the first time I thought the NFPA interp was wrong and I think that
again now.
Ron fletcher Sent from my iPhone
On Aug 21, 2014, at 4:34 PM, Steven P. Biship sbis...@pacificfireeng.com
wrote:
I actually called NFPA a couple weeks ago for an unofficial interpretation
for this
It was an unusual condition. 8 ft deep ssingle rack against a wall, no flues,
plywood barrier fit tight to the wall. Mattresses below and cartooned stge
above. Added to existing ESFR Whse
Ron fletcher Sent from my iPhone
On Aug 14, 2014, at 7:24 AM, Roland Huggins rhugg...@firesprinkler.org
Last time we did one we called the solid shelf a mezzanine and put the correct
density under with ESFR at roof.
Ron fletcher Sent from my iPhone
On Aug 13, 2014, at 3:34 PM, Roland Huggins rhugg...@firesprinkler.org
wrote:
open
___
Too funny. I once saw a set of plans reviewed by Andy that said Rejected - Do
Not Resubmit until redrawn by an experienced designer. Or something to that
effect. I went to his office one time, there were plans everywhere.
Ron F
-Original Message-
From: Sprinklerforum
Anything would be better than here's your badge and unlimited authority. One
the biggest problems I find is that the higher up the chain of command we go
the less they know about codes and plan review. The Chief tries to hire
experienced people and is reluctant to overrule them because he/she
To show how futile it is here is word for word the letter they wrote minus the
names and places.
Per our discussion on 7/14/2014 regarding the Fire Pumps at Blah Blah Parkway,
Project Blah Blah, within Blah Blah industrial center, Blah Blah Blah Fire
Protection District is exercising its right
Can you rig up something that uses whatever level sensing devices the tank
already has? Otherwise they now make a sonic sensor that can mount to the
inside top of the tank. You should be able to get a signal from it to operate a
valve.
Ron F
-Original Message-
From: Sprinklerforum
I feel your pain.
Ron F
Ron fletcher Sent from my iPhone
On Jul 21, 2014, at 12:10 PM, Tony Liddic
tony.lid...@mrhsprinklerdesign.com wrote:
AHJ has spoken with Mfr Rep directly and has basically decided to forgo
common sense.
The only way he will approve it is if NFPA 13R includes
I am filing an appeal, for all the good it will do. Have to get CofO then I can
fight the the good but futile fight.
Ron fletcher Sent from my iPhone
On Jul 20, 2014, at 5:10 PM, John Drucker - Home john.druc...@verizon.net
wrote:
Actually you get a notice of violation, order to pay
The stance of the AHJ is that their unwritten policy is pumps can only be used
at 100%. They also believe that 1500 gpm pumps will only produce 1500 gpm, and
we have to use 2 2000 gpm pumps to get 4000 gpm. They don't think pressure is
even a factor.
Ron fletcher Sent from my iPhone
On Jul
It's a mystery. An AHJ in a different jurisdiction but in same metro area said
she didn't know if she would accept our flow test for the sprinkler Sys because
we only flowed 3871 gpm and that they require 4000. The civil engineer had
already modeled 4000 gpm for there drawings. Must be
The AHJ told me I don't care what the codes say. Do it my way or no CofO. I
am appealing to the State FM while arranging to change the pumps to 2000 gpm.
We have a written notice from the GC to get our plans approved. The GC has
tried to reason with the badge. That's when he was told they would
Wouldn't say the GC is sitting with the badge. He took a run at, found it to be
futile and is now rightly concerned about turning the bldg over on time.
I'm sure at this point that we will change the pumps to 2000's and wait for the
badge to go away before going back. We don't want lose money
Had a FPE registered in the state call the badge. They talked for an hour and
the FPE thought he was making some headway. Badge said he would email something
outlining their unpublished policies. 15 minutes later he called back and said
the chief told him not put a anything in writing. End of
That's what I've been doing. The worst part besides the money is the wasted
time and resources. I should be doing something productive, instead I'm trying
to fix stupid.
Ron fletcher Sent from my iPhone
On Jul 19, 2014, at 9:51 AM, Rod DiBona r...@rapidfireinc.com wrote:
As I have watched
Certainly it has occurred to me but I would hope that isn't the case. There are
some union and some non in the area. While some may not like that we are in
their backyard I prefer to think that this issue is just a lack of
sophistication on ths part of the badge.
Ron fletcher Sent from my
That's a good one. I'll add that to my so you think you have heard everything
list. Like saying it's approved below a valve but not above. Does he have a
code reference or is this it just their opinion? Can you have someone from the
manufacturer call them?
Ron F
-Original Message-
I wish there was a way to deal with abusive AHJ's. It seems like every time we
go into a new jurisdiction we have to waste time and money proving what we
already know to be a fact. Then their ego gets hurt and they get stubborn.
Ron F
-Original Message-
From: Sprinklerforum
It's Friday so I figured I'd whine on the forum. To set the stage, prior to
the letter I am referring to we had approved permitted drawings from the AHJ.
The following is a quote from a letter we received from that same AHJ.
At this time , Blah Blah Blah Fire Protection District is denying
Yikes, that isn't very encouraging. The chief told us to go to the State FM is
we wanted to appeal so there might be some hope.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Roland Huggins
Sent: Friday, July 18, 2014
I told him that IFC didn't give him the power to do what he thinks. That's when
he gave me the ultimatum. Can you believe he wrote a letter saying that we have
to EXCEED the adopted codes?
Ron F
-Original Message-
From: Sprinklerforum
All too true and I really enjoyed your metaphor with compost. I am trying give
the badge what he wants. Schedule is the biggest issue. I just found out thAt I
can buy two new pump cases keeping the same engines and have them re- labeled
as 2000 gpm. Cost without labor $20-25k. The badge did
How about everything is per code except we have two pumps rather than one.and
we have 4000 GM at 160 psi instead of.4000 gpm at 165 psi. Most ignorant thing
I have ever seen. Just found out the chief told plan reviewer no more written
correspondence. I guess because they don't want a written
Can't say how much this pisses me off.
Ron fletcher Sent from my iPhone
On Jul 18, 2014, at 7:19 PM, Brad Casterline bcasterl...@fsc-inc.com
wrote:
You're alright like most of us the psychology part of sprinkler work just
makes you want to throw up in your mouth a little bit , right?
Okay you explain the $40-50k hit to the bottom line
Ron fletcher Sent from my iPhone
On Jul 18, 2014, at 7:32 PM, Brad Casterline bcasterl...@fsc-inc.com
wrote:
Best not to dwell on any one project too much
On Jul 18, 2014, at 9:28 PM, rfletc...@aerofire.com wrote:
Can't say how much
I call ittroglydite infeztation
Ron fletcher Sent from my iPhone
On Jul 18, 2014, at 7:56 PM, Todd - Work t...@fpdc.com wrote:
My favorite is home rule (aka we can make up whatever the heck we want)
places like Texas. Did a small job for a company in a place around Houston.
Was supposed
8K spray nozzle is pretty odd device if you can't use standard spray
sprinklers. Tyco D3's only go to 7.2K. I would talk to the FM rep about an
alternative. I don't see why they would object If you can prove the impingement
at the required density with smaller K Factor nozzles. Especially if
We did a 45' high 40k sq ft beer cooler with ESFR's. After it was up and
running we put temp recorders in front of reefer units. 30' up, 15' up and on
floor. Recorded every 30 minutes for 5 days. Nothing varied more than one
degree. Some one told me that the reefer units could not produce the
38F. Yes an ESFR wet with 2 drops through the deck.
Ron fletcher Sent from my iPhone
On Jun 28, 2014, at 3:21 PM, Bobby Gillett bo...@livingwaterfp.com wrote:
What temp was your beer cooler?
You put a wet system in with ESFR's?
Thank you,
Bobby Gillett
Living Water Fire Protection
A couple questions. If it is a cooler why do you need dry pendent heads? And if
it has to be dry heads and they are on a wet system the RA could still be
reduced couldn't it?
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Exactly, we do 38F coolers with ESFR's. Never had a ..., I better not say that
might jinx it.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of John Denhardt
Sent: Friday, June 27, 2014 11:49 AM
To:
In the friction loss formula found in 13-23.4.2.1.1 (13 Ed) I would use Q
squared rather than Q to 1.85.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Rahe Loftin - 7PMC
Sent: Wednesday, June 25, 2014 3:50 PM
To:
We do completely different drawings for the install crews. They don't need the
hyd nodes or remote areas. Submittal plans have lots of info that isn't needed
for installation.
Ron fletcher Sent from my iPhone
On Jun 19, 2014, at 6:38 AM, craig.pr...@ch2m.com craig.pr...@ch2m.com
wrote:
I have not heard one. Be great if there was though.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Richard Mote
Sent: Monday, June 16, 2014 6:23 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: High Pressure ESFR
I can hear it now, the book says, shall be internally galvanized so there
can't be any galvanizing on the outside of the pipe. The stuff we get is coated
on the outside as well. How would an inspector tell if it was only galvanized
on the inside? Maybe the next edition of 13 they can add a
I'd tell the engineer to site the code section that prohibits the pipe passing
through. It's ridiculous but I have seen AHJ's interpret the thing about no
unnecessary equipment to mean the pipe can enter but not leave an electrical
equipment room. I don't think there is any code at all about
Yes, they can be mixed. We do it all the time. SC in entry and EC in sleeping
room.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Pete Schwab
Sent: Wednesday, May 28, 2014 8:49 AM
To:
Have you tried Grainger?
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Richard Mote
Sent: Monday, May 19, 2014 11:14 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: Sheet Metal Pipe Sleeves
Someone missed the
Seems like something that makes sense for wood frame buildings but not so much
for noncombustible construction. The runaway shower enclosure fire had never
occurred to me, guess I lack the imagination.
Ron F
-Original Message-
From: Sprinklerforum
Why not just read the gauges on the pump?
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Brian Harris
Sent: Thursday, May 15, 2014 8:22 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: Test Header Calc
I'm running
Okay, what am I missing? There are gauges on the suction and discharge sides of
the pump, right?
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Tim Stone
Sent: Thursday, May 15, 2014 8:36 AM
To:
Tim, So based on 47 psi at one test valve and just a flow on the rest, what was
the pressure on the suction flange of the pump? Can't you just plot 1500 gpm on
flow test curve and subtract the friction and elevation losses between the
supply and pump?
Brian, Pitot the discharge for each
I just ran this very thing by the forum. The consensus was the barrier has to
isolate the shower enclosure from the wall cavity so the sheet rock would have
to be on both sides of the stud.
Ron F
-Original Message-
From: Sprinklerforum
2012 IFC - APPENDIX B: B201.1 Definitions
FIRE-FLOW. The flow rate of a water supply, measured at 20 PSI residual
pressure that is available for fire-fighting.
Ron F
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of John
We use the 4 pumper connections for flow tests all the time. In Phoenix we
have to calculate the 4,000 gpm fire flow onto the site and out of the private
hydrants and I don't like doing hydraulic calc's out to 4,000 gpm using a graph
from a 1,300 gpm flow test. The city water supply tends to
States in part a 15 minute thermal barrier rating, including the walls and
ceilings behind any shower enclosure or tub. Questions is, can there be a
steel stud between the shower enclosure and the 15 minute barrier?
Ron F
___
Sprinklerforum mailing
Anyone know if California Title 19 requires an inspector to write up spacing
and placement issues or is it just for operation of the system per NFPA 25?
Ron F
___
Sprinklerforum mailing list
Sprinklerforum@lists.firesprinkler.org
Thanks Steve. Thought you would know.
Ron f
Sent from my iPhone
On Apr 18, 2014, at 4:43 PM, Steve Leyton st...@protectiondesign.com
wrote:
Many local AHJs want you to inform, but the state did not amend the NFPA 25
separation of design deficiencies from the ITM tasks.
Steve
Just noticed Figure 8.8..1.2(c), 2013, it's new. It is also added for standard
and residential heads. I tried to look up the ROP/ROC's but I lost my link and
I can never find them through the menu system.
The figure indicates a minimum depth of 18 for an obstruction (soffit) against
a wall.
Glad you have submitted the comment. It will make more sense with those changes.
Ron F
-Original Message-
From: sprinklerforum-boun...@lists.firesprinkler.org
[mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Larry
Keeping
Sent: Friday, April 11, 2014 9:26 AM
To:
Is there.no exception in 20 if A double wall uL 142 tank.
Ron f
Sent from my iPhone
On Apr 9, 2014, at 7:27 AM, Richard Mote rich...@rowesprinkler.com wrote:
We had the builder layup 3 or 4 courses of 8 CMU block and had them coat the
inside with a fuel proof coating. On one job they
Or, if possible keep headed in the pump room without valves, run hoses out to a
truck mounted test rack with hose gates on the rack. This way the person
reading the pitot can adjust the valves,
Sent from my iPhone3200
USA Parkway
McCarran NV 89434
United States
On Apr 9, 2014, at 12:49 PM,
Love engineer humor.
Ron f
From: sprinklerforum-boun...@lists.firesprinkler.org
[sprinklerforum-boun...@lists.firesprinkler.org] on behalf of Todd - Work
[t...@fpdc.com]
Sent: Tuesday, March 25, 2014 9:40 AM
To: sprinklerforum@lists.firesprinkler.org
We use intermediate for everything unless specifically forbiden. Have to watch
out cuz some heads not available in intermediate.
- Original Message -
From: Jim Adams [mailto:tfscolor...@aol.com]
Sent: Tuesday, March 25, 2014 01:11 PM
To: sprinklerforum@lists.firesprinkler.org
NFPA #13, 1978, A-1-7.3.3 Warehouses having moderate to higher combustibility
of content, such as household furniture , paint, general, a=storage, whisky etc.
Ron F
-Original Message-
From: sprinklerforum-boun...@lists.firesprinkler.org
Here is a new one, for me anyway. Had a designer ask if it was okay to use
exposed pendents on a pre-action system. He had it designed with uprights but
due to field conditions the pipe was installed higher than designed and the
foreman changed the heads to pendent. 13 says pendents have to be
No drops just a 1/2 head in a threaded tee or elbow. We are not us nitrogen.
Ron F
-Original Message-
From: sprinklerforum-boun...@lists.firesprinkler.org
[mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Matt Grise
Sent: Thursday, March 13, 2014 9:03 AM
To:
The interchangeable one I like most is expansion joint and seismic joint. Can't
tell you how many times I have had AHJ's and EOR's write us up for not having a
seismic joint in our pipe where it crossed an expansion joint. Actually had a
structural engineer tell me there was no difference
Nor do we usually receive the bid package early enough to ask questions and get
answers.
Ron F
-Original Message-
From: sprinklerforum-boun...@lists.firesprinkler.org
[mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Steven Cook
Sent: Wednesday, March 12, 2014 10:11
I have never heard of a soft start diesel. I guess they could put a damper on
the governor to prevent the throttle from opening quickly but I don't know what
good it would do. Any pressure surge would be negligible unless there was a big
air pocket in the system somewhere.
For me it depends on
It's done all the time. Do the hydro test then knock out the links.
Ron F
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