..@rowesprinkler.com
> >
> >
> >
> > -Original Message-
> > From: sprinklerforum-boun...@firesprinkler.org [mailto:
> > sprinklerforum-boun...@firesprinkler.org ] On Behalf Of
> > David deVries
> > Sent: Thursday, April 26, 2012 5:04 PM
> &
just think about how with #13 calcs u start at the end and work
backwards. when you get to the start you're done
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just think about how with #13 calcs u start at the end and work
backwards. when you get to the start you're done
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>
> -Original Message-
> From: sprinklerforum-boun...@firesprinkler.org [mailto:
> sprinklerforum-boun...@firesprinkler.org ] On Behalf Of
> David deVries
> Sent: Thursday, April 26, 2012 5:04 PM
> To: sprinkle
g
[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of David deVries
Sent: Thursday, April 26, 2012 5:04 PM
To: sprinklerforum@firesprinkler.org
Subject: Re: Rounding off {Squaring off?}
Don't know if there is a connection without researching it, but it seems that
staggered sprinkl
aps the 7'-6" maximum distance, but does not reach the maximum
> diagonal distance of 10.6 ft. At 30 psi, you get closer to the 10.6 ft.
> Obviously, at smaller spacing, the overlap increases (another variable to
> consider).
>
> Mark A. Sornsin, PE| Fire Protection Engineer
>
tlanta, GA 30303
e-mail: dbohan...@atlantaga.gov
phone: 404-330-6193
fax: 404-739-4172
- Original Message -
From: "Mark Sornsin"
To: sprinklerforum@firesprinkler.org
Sent: Wednesday, April 25, 2012 4:18:18 PM
Subject: RE: Rounding off {Squaring off?}
I
Ed,
IF you have the IRI book it's number 42. MASCO stands for Manufacturers
Automatic Sprinkler Company. There's is dated 1907. I have the same one as
you dated 1908. Mine also says Pat. 3-19 95. The Pat. is on one side of the
central disc with the lettering outward. The 95 is opposite it with the
Thanks Roland. This is what I've been preaching for years. Finally someone
that has some respect and status has said it. IT'S A MATHEMATICAL MODEL-NOT
THE REAL THING
On Wed, Apr 25, 2012 at 12:55 PM, Roland Huggins wrote:
> The problem is that many think a sprinkler design per NFPA 13 re
sage-
From: sprinklerforum-boun...@firesprinkler.org
[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Bruce Verhei
Sent: Tuesday, April 24, 2012 12:51 PM
To: sprinklerforum@firesprinkler.org
Subject: Re: Rounding off {Squaring off?}
I've read in the past that this fell in the not well un
The problem is that many think a sprinkler design per NFPA 13 reflects
reality. The only reality it reflects is that it provides a
repeatable methodology that will control a fire. The actual
deliverable density is unknown. Its both the assigned rectangle or
square verses the much larger c
Todd
You're getting younger every day.
Bruce
Sent from my Motorola ATRIX™ 4G on AT&T
-Original message-
From: Todd Williams
To: sprinklerforum@firesprinkler.org
Sent: Wed, Apr 25, 2012 15:39:31 GMT+00:00
Subject: Re: Rounding off {Squaring off?}
See, I'm years behind
See, I'm years behind my time!
At 11:09 AM 4/25/2012, you wrote:
>I have a 1908 sprinkler with a rotating deflector. Can't read its name,
>but looks like MASCO Model C.
>
>The old IRI collection pamphlet shows also a 1888 Gleason which has one.
>Ed Vining
>4819 John Muir Rd
>Martinez CA 94553
>9
I have a 1908 sprinkler with a rotating deflector. Hard to read the
manufacturer, but looks like MASCO Model C. The old IRI Early Automatic
Sprinkler Heads pamphlet shows an 1888 Gleason with one.
Ed Vining
4819 John Muir Rd
Martinez CA 94553
925-228-8792
Cell 925-787-0465
On Wed, Apr 25, 2012
Thomas,
The pattern and the floor are merely after-thoughts concerning the density.
If it takes 6 pounds of fuel to vaporize 1 gallon of water, 15 gallons of
water would control 90 pounds of fuel. If the fuel burning rate is 90 pounds
per minute, you need 15 gallons per minute. If the head covers
I have a 1908 sprinkler with a rotating deflector. Can't read its name,
but looks like MASCO Model C.
The old IRI collection pamphlet shows also a 1888 Gleason which has one.
Ed Vining
4819 John Muir Rd
Martinez CA 94553
925-228-8792
Cell 925-787-0465
On Wed, Apr 25, 2012 at 7:50 AM, Todd Willi
I won't go into my idea of a spinning deflector to improve water distribution
(this may have already been done; i'm not sure)
At 10:18 AM 4/25/2012, you wrote:
>Thanks Todd.
>
>I was really thinking along these lines. When calc'ing coverage, density
>and such...we measure linearly right?. And th
omeone to show up and put it out.
Mike Morey, SET, CFPS
Sprinkler Designer
BMW Constructors, Inc.
O: 317.651.0596 | C: 317.586.8111
www.bmwc.com
From: sprinklerforum-boun...@firesprinkler.org on behalf of Thomas Watt
Sent: Wed 4/25/2012 10:18 AM
To: sprinklerforum@fi
Thanks Todd.
I was really thinking along these lines. When calc'ing coverage, density
and such...we measure linearly right?. And thus, we measure squares of
coverage. However, the sprinkler generally throws in a circular pattern.
What percentage of a circle lies outside the box once it is drawn in
I've read in the past that this fell in the not well understood effect category
when engineers have desired to model how sprinklers actually work. This seems
to be difficult. They say something that ends with but sprinklers installed
and maintained to standards have a remarkable record of contr
Often wondered about the round peg in a square hole concept myself. Probably
has something to do with overlap. My idea for the square deflector didn't get
much traction. Good luck with the job search.
At 09:05 AM 4/24/2012, you wrote:
>I had a brain-fart and came up with this question for the f
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