With the water traveling through the orifice at about 1336 mph, if I got my
decimal places correct. I do not have the reading glasses on.
The pressure is several times above that used for cutting stainless, granite,
glass, concrete. Also this is somewhat above UL test pressure.
Yours,
Bru
Go ask Bullwinkle what he installs in Frostbite Falls.
I think the EDPM gaskets are rated down to -20 or -30. You would
probably have to talk to the VIC rep on this one. They may have a
special gasket that was made for outdoor applications in places even
north of you 8-). I think the colde
Gentleman,
What are your thoughts on this piece of legislation? Is it similar to other
states? This seems to castrate our Fire Marshal and provide a means to have
a lot of un-protected buildings throughout our state.
http://www.legislature.idaho.gov/legislation/2009/H0202SOPBookmark.htm
Looking for any one that has done systems exposed to less than -40 F?
Canadians? Are there freezers this cold? Got some questions about the
gaskets on the couplings? Go ahead take your shot about someone from MN
looking for advice on cold.
Chris Cahill, P.E.
Fire Protection Engineer
Sent
Probably wont add to the debate on USA systems but as Chris says NZ systems
use "drop in pressure" alarm. For many years NZ govt specs had a clause
requireing valves or plugs to remove trapped air. This was always ignored
and waterlogged systems always produced false alarms. Relief valves and
word unsubscribe in the subject field)
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Check out the new Tyco RAVEN sprinkler. Upsides: VERY durable and a
locking escutcheon. Designed specifically to withstand efforts to pick
it apart, including blunt force. Downside: $24 each street pricing.
Steve Leyton
Protection Design & Consulting
San Diego, CA
-Original Message-
Thom,
The architect, court designer, sprinkler designer and owner felt that given
the circumstances institutional sidewalls were the best albeit not perfect
solution to suppression.
According to the court designer the upper sidewalls represented the least
impact area. I have to take his word on t
I'm re-sending this. We had trouble with our DSL connection. Pardon me if
this hits the forum twice.
Randy
_
From: Randy Knutson [mailto:ra...@shilosprinkler.com]
Sent: Wednesday, March 04, 2009 1:29 PM
To: 'sprinklerforum@firesprinkler.org'
Subject: New Proposed Idaho Legislation
An old fitter, perhaps wise, told me one should always throw a simple swing
check before a RP. This way once the high pressure stabilizes past the
first swing check the RP doesn't burp anymore. I don't know if that make
sense? We don't do RP's in these parts. Simple swing check is all that's
re
A question came up regarding when a domestic demand is taken on an
NFPA 13R system. Normally you would if the sprinkler and domestic
split inside the building and you would not when separate feeds come
off the public main. However, when a private main comes off the
public and splits outside the
It must be one of those FHO sprinklers.
Sent from my Verizon Wireless BlackBerry
-Original Message-
From: ParsleyConsulting
Date: Wed, 04 Mar 2009 09:02:20
To: SprinklerFORUM
Subject: Wow, that's quite a sprinkler!
20 gallons per second x 60 seconds = 1200 gallons a minuteusing
While "Institutional Sprinklers" may sound like the best option, I'd suggest
you read the literature closely.
These heads are "Tamper Resistant" not impact resistant. Because the
element/cover forms the smooth rounded center of the head, this exposes it
to the impact of the ball.
You may want to t
Chris-
Just reading your post and catching up some here I think I just figured out
a problem we had 2 summers ago.
I used to test a storage building next to Boston's Logan Airport. Large ELO
system above a high ceiling, 3 wet zones, fire pump, RP BFP.
The facilities guy called me almost every Mon
Somehow I think that the purpose of the Inspectors Test Connection has been
missed or lost in this discussion. The reason its location is not important
is that the only purpose it serves is to "Test" the alarm device.
Are there other benefits that can be had from a remote location? Possibly.
Are
The new SUPER-SOAKER sprinkler. Yeah man I'm specing them on my next job. You
only need one per building!
Craig L. Prahl, CET
Fire Protection Specialist
Mechanical Department
CH2MHILL
Lockwood Greene
1500 International Drive
PO Box 491, Spartanburg, SC 29304-0491
Direct - 864.599.4102
Fax -
Hear! Hear, for the let's drop the ITC at the end of line discussion
on wet systems. As for trial by failure I cross the bridge that
replaced Galloping Gertie (the big suspension bridge you see collapse
on all the "When Havoc Struck" type shows) on a daily basis. Trial by
failure is really, really
I say let's stop saying we want a remote ITC when what we really need is to
purge all air trapped in the systems.
What is the best most affordable way to do that? A combination ITC/Purge? If
we accept some air trapped in systems, how much is too much?
If it doesn't false trip it's OK? If it does th
20 gallons per second x 60 seconds = 1200 gallons a minuteusing the
standard math for k-factors and pressure, assuming a 1/2" orifice
sprinkler, that would require45,918 psi.
That is impressive to me. I bet the regulators to stop the toilets,
sinks and showers from exploding are massi
I tell too many stories as it is so today I'll just say that I have
ten for every one that Chris told today that displayed the same types
of symptoms and were cured in similar fashion all because of trapped
air, leaking checks and hydrant use. Many were just as predictable as
the one Chris describe
Air is not coming through the city mains. It's trapped when filling the
system. The air in the system is expanding and contracting with temperature
and pressure changes. Not unlike a bladder tank on your well or an
anti-freeze system.
You are underestimating the size of the air pocket. It's
Just wanted to advise this is coming up- I'm familiar with the Academy and
am supporting it fully.
glc
https://www2.gotomeeting.com/register/378416611
Everything you need to know about the world's first Fire Sprinkler degree
program! This webinar will update the attendees on all of the activitie
Interesting that you state the installation of the ITC at the riser being a
poor design. It makes for an easy install since you are at an outside wall
and don't have to run much pipe as I was told by one contractor. Plus NFPA 13
doesn't' prohibit it.
Well while his words may be true, I can se
Bruce,
Would you be suggesting this software can be adapted to fire sprinkler
inspections?
Bobby McCullough
-Original Message-
From: sprinklerforum-boun...@firesprinkler.org
[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of MOWLE
Kevin(K) - BRUCE POWER
Sent: Tuesday, March
Tim,
A squash court was just completed in our jurisdiction. Institutional QR
Sidewall Sprinklers were utilized for aesthetic and resistance to damage.
The manufacturer was Viking.
John Drucker
Fire Protection Subcode Official (AHJ)
Red Bank, NJ
-
Has anyone dealt
Seems like a good place for an institutional head?
I'd like to know what you tell the owner!
From: Tom Duross
To: sprinklerforum@firesprinkler.org
Sent: Wednesday, March 4, 2009 5:59:54 AM
Subject: RE: Indoor Squash court
Slick looking head.
Tom
New institut
Slick looking head.
Tom
New institutional head by Tyco called Raven, seems to have a low profile.
Pendent or sidewall
Standard or EC
Maybe worth looking into.
Bryan A. Dann
We have a large home here that will have a sprinkler system installed in
accordance with the requirements of NFPA 13. Ju
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