t; > this
> > >>> and
> > >>> > a
> > >>> > > fire pump it might be worth the fight.
> > >>> > >
> > >>> > > JH
> > >>> > >
> > >>> > > On Wed, Oct 27,
To: sprinklerforum@lists.firesprinkler.org
Cc: Skyler Bilbo
Subject: Re: Gridded dry system
IMHO, defining a grid as any system that can supply a sprinkler from more
than one direction is a poor threshold. Just because you install sprinklers
on a looped main or line, does not magically turn
Mitchell
> Mid Atlantic Fire Protection, Inc.
>
> -Original Message-
> From: Sprinklerforum On
> Behalf Of J H via Sprinklerforum
> Sent: Wednesday, October 27, 2021 1:03 PM
> Cc: J H ;
> sprinklerforum@lists.firesprinkler.org
> Subject: Re: Gridded dry system
>
Sprinklerforum
Sent: Wednesday, October 27, 2021 1:03 PM
Cc: J H ; sprinklerforum@lists.firesprinkler.org
Subject: Re: Gridded dry system
So, on any looped system, if you add sprinklers to the looped main (adding flow
from more than two directions) does that now constitute a grid? I see both
viewpoints
rom two directions. Technically the
>>> only
>>> >>> > cross
>>> >>> > > main is the center piping - everything else are looped
>>> branchlines. I
>>> >>> > would
>>> >>> > > be prepared
> > fire pump it might be worth the fight.
>> >>> > >
>> >>> > > JH
>> >>> > >
>> >>> > > On Wed, Oct 27, 2021 at 6:04 AM Sean Conlin via Sprinklerforum <
>> >>> > > sprinklerforum@li
sts.firesprinkler.org> wrote:
> >>> > >
> >>> > > > If you were to put caps on the left and right lines going north
> and
> >>> > > south,
> >>> > > > it resembles a compound gridded system and a sprinkler can
> recei
t;> > > south,
>>> > > > it resembles a compound gridded system and a sprinkler can receive
>>> > water
>>> > > > from both sides.
>>> > > >
>>> > > > The east and west lines are essentially the mains an
any attachments is considered confidential
> and
> > > for
> > > > use only by the intended recipient(s).
> > > > Any other distribution, copying or disclosure is strictly prohibited.
> > > > Please delete this communication and notify
> > &
strictly prohibited.
> > > Please delete this communication and notify
> > > Demand Sprinkler Design Inc. if you are not the intended recipient or
> > have
> > > received this message in error. Demand
> > > Sprinkler Design Inc. accepts no responsibility or li
no responsibility or liability for any loss
> > or damage from use, including damage from viruses.
> >
> > -Original Message-
> > From: Ed Kramer
> > Sent: October 26, 2021 1:31 PM
> > To: sprinklerforum@lists.firesprinkler.org
> >
responsibility or liability for any loss
> or damage from use, including damage from viruses.
>
> -Original Message-
> From: Ed Kramer
> Sent: October 26, 2021 1:31 PM
> To: sprinklerforum@lists.firesprinkler.org
> Subject: Gridded dry system
>
> Is this sprinkler
ility for any loss or
damage from use, including damage from viruses.
-Original Message-
From: Ed Kramer
Sent: October 26, 2021 1:31 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: Gridded dry system
Is this sprinkler system a gridded system? I've avoided this type of
d
Personally, I'd like to see a FDT calc on this setup. It looks a little
suspicious to me.
Jamie Seidl
On Tue, Oct 26, 2021 at 6:00 PM John Denhardt via Sprinklerforum <
sprinklerforum@lists.firesprinkler.org> wrote:
> If it looks and acts as a grid, it’s gridded. Multiple ways to supply one
>
If it looks and acts as a grid, it’s gridded. Multiple ways to supply one
sprinkler; a grid. Water delivery time will be longer.
The above is my opinion and has not been processed as a formal
interpretation in accordance with the NFPA Regulations Governing Committee
Projects. This is provided
UupGwgGTrqF3b54OP5%2BAZvlHhABSexWY%3D=0
> >
>
> From: Sprinklerforum On
> Behalf Of Richard Carr via Sprinklerforum
> Sent: Tuesday, October 26, 2021 10:56 AM
> To: sprinklerforum@lists.firesprinkler.org
> Cc: Richard Carr
> Subject: RE: Gridded dry system
>
> With the ce
.
Matt
-Original Message-
From: Sprinklerforum On Behalf
Of Travis Mack via Sprinklerforum
Sent: Tuesday, October 26, 2021 1:01 PM
To: sprinklerforum@lists.firesprinkler.org
Cc: travis.m...@mfpdesign.com; rich...@diboco.com
Subject: RE: Gridded dry system
Gridded System - parallel cross
26, 2021 10:56 AM
To: sprinklerforum@lists.firesprinkler.org
Cc: Richard Carr
Subject: RE: Gridded dry system
With the center fed main and not two outer mains with lines fed from both
mains, I would not call it a grid, no matter what you call it, I like the
layout and should not be anything code wise to p
Hall
Subject: Re: Gridded dry system
The operating sprinkler will receive water from two directions. That meets more
of the definition of gridded than it does loop.
The above is my opinion and has not been processed as a formal interpretation
in accordance with the NFPA Regulations Governing
-Original Message-
From: Sprinklerforum On Behalf
Of Ed Kramer via Sprinklerforum
Sent: Tuesday, October 26, 2021 1:31 PM
To: sprinklerforum@lists.firesprinkler.org
Cc: Ed Kramer
Subject: Gridded dry system
Is this sprinkler system a gridded system? I've avoided this type of
design
Look up the definition of a gridded and looped systems in 13. See what fits
Todd G Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860-535-2080 (tel:860-535-2080) (ofc)
860-554-7054 (tel:860-554-7054) (fax)
860-608-4559 (tel:860-608-4559) (cell)
8-696-3400
> 828-696-2288 Fax
> 828-708-9118 Mobile
>
>
>
> -Original Message-
> From: Sprinklerforum On
> Behalf Of Ed Kramer via Sprinklerforum
> Sent: Tuesday, October 26, 2021 1:31 PM
> To: sprinklerforum@lists.firesprinkler.org
> Cc: Ed Kramer
>
-
From: Sprinklerforum On Behalf
Of Ed Kramer via Sprinklerforum
Sent: Tuesday, October 26, 2021 1:31 PM
To: sprinklerforum@lists.firesprinkler.org
Cc: Ed Kramer
Subject: Gridded dry system
Is this sprinkler system a gridded system? I've avoided this type of
design in the past for dry systems
Is this sprinkler system a gridded system? I've avoided this type of
design in the past for dry systems because it 'kinda' a grid, but not
really. Now I'm questioning my questioning. What are your thoughts?
Reference NFPA 13 (2019) sections 8.2.3.10 and 3.3.206.5.
To: sprinklerforum@lists.firesprinkler.org
Subject: Re: Gridded dry system
Adding to Mark Phelps comments,
Sometime around 1979 or 1980, Frank Hill, of Culligan Fire, conducted a series
of tests that determined the delivery time of around 50 dry systems (tree,
looped, and gridded). Around half of them were
@lists.firesprinkler.org
Subject: Re: Gridded dry system
The language prohibiting gridded dry systems was added in 1991 according to a
message in the group archive.
Mike Morey, CFPS, SET
Planner Scheduler/Designer
BMWC Constructors, Inc.
1740 W. Michigan St, Indianapolis, IN 46222
O: 317.651.0596 | C: 317.586.8111
mo
alf
of mphe...@aerofire.com <mphe...@aerofire.com>
Sent: Tuesday, May 3, 2016 12:07 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: Re: Gridded dry system
In late 79 early 80, FM and IRI both were doing research on the performance of
dry grids. By late 80 IRI was no longer approving plans
Thanks for the clarifications. It's still "relatively recent" :-) I
feel like such an old timer.
I was shocked when I saw the plans though for a project designed last
year with a gridded dry system..and reviewed/approved by a NICET
IV...and approved by a local official..and
> On May 3, 2016, at 9:42 AM, "Steve Sorrell" <ssorr...@performancefire.com>
> wrote:
>
> All,
> I have come upon a gridded dry system fed by a fire pump that was installed
> in 1985.
> I was sure that these are not legal, but could they have been in 1
copy them in any medium.
Thank you for your cooperation.
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Travis Mack, SET
Sent: Tuesday, May 03, 2016 12:46 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: Re: Gridded dry syst
ubject: Re: Gridded dry system
The language prohibiting gridded dry systems was added in 1991 according to a
message in the group archive.
Mike Morey, CFPS, SET
Planner Scheduler/Designer
BMWC Constructors, Inc.
1740 W. Michigan St, Indianapolis, IN 46222
O: 317.651.0596 | C: 317.586.8111
mo..
forum-boun...@lists.firesprinkler.org] On
Behalf Of Steve Sorrell
Sent: Tuesday, May 03, 2016 11:42 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: Gridded dry system
All,
I have come upon a gridded dry system fed by a fire pump that was installed in
1985.
I was sure that these are
org> on behalf of
Steve Sorrell <ssorr...@performancefire.com>
Sent: Tuesday, May 3, 2016 12:42:03 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: Gridded dry system
All,
I have come upon a gridded dry system fed by a fire pump that was installed in
1985.
I was sure that these a
From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> on behalf
of Steve Sorrell <ssorr...@performancefire.com>
Sent: Tuesday, May 3, 2016 12:42:03 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: Gridded dry system
All,
I ha
As far as I know, it was sometime in the 70's or earlier where it was no
longer permitted. I ran into one that was installed last year as a
gridded dry system. No one caught it and it is sitting there today.
Things slip through the cracks.
Travis Mack, SET
MFP Design, LLC
2508 E Lodgepole
All,
I have come upon a gridded dry system fed by a fire pump that was installed in
1985.
I was sure that these are not legal, but could they have been in 1985 ?
Any help would be appreciated,
Steve
Stephen J. Sorrell, CET
NICET# 77901 Level III
E mail: ssorr...@performancefire.com<mailto:ss
68508
402-471-9659
402-471-3118 fax
www.sfm.ne.gov
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Joe Burtell
Sent: Wednesday, March 07, 2007 9:36 AM
To: sprinklerforum@firesprinkler.org
Subject: Gridded Dry System
Can anyone tell me what edition of 13
: 970-879-7952
Fax: 970-879-7926
- Original Message -
From: David Autry [EMAIL PROTECTED]
To: sprinklerforum@firesprinkler.org
Sent: Wednesday, March 07, 2007 8:46 AM
Subject: RE: Gridded Dry System
1985 Edition allowed dry gridded systems to 500 gallon capacity with the
exceptions for sub
@firesprinkler.org
Subject: Re: Gridded Dry System
The other side of this Sticky question is what code the AHj was using at
the time the design/layout and installation were approved. In 1985, it could
have been a much older version of 13. (This is Mote, with David's info below
but always worth
: Richard Mote [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 07, 2007 2:59 PM
To: sprinklerforum@firesprinkler.org
Subject: Re: Gridded Dry System
Ron,
Am I to take it then I am not actually a sprinkler layout technician but
instead a slight moral defect.
Richard MOTE
Engineering Technician
maybe ...
Steve Leyton
Sitting Under My Mushroom Just LMAO
-Original Message-
From: Richard Mote [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 07, 2007 2:59 PM
To: sprinklerforum@firesprinkler.org
Subject: Re: Gridded Dry System
Ron,
Am I to take it then I am not actually a sprinkler
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