Just trying to get a consensus,
Got a backflow in a building at the riser location, what is the preferred type
of connection at the wall which would allow for forward flow testing?
Craig L. Prahl, CET
Fire Protection Specialist
Mechanical Department
CH2MHILL
Lockwood Greene
1500
Main drain.
Ron Fletcher
Aero Automatic
Phoenix, AZ
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craig.pr...@ch2m.com
Sent: Monday, July 26, 2010 5:32 AM
To: sprinklerforum@firesprinkler.org;
HOSE VALVES.
Richard Carr, SET
Design Manager
Associated Sprinkler Co., LLC
336.373.3901 ext 217
richa...@associatedsprinkler.com
-Original Message-
From: sprinklerforum-boun...@firesprinkler.org
[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of
craig.pr...@ch2m.com
Hello Craig,
Fire pump test header for sizes over 2, Otherwise the main drain
Monday, July 26, 2010, 8:31:34 AM, you wrote:
Just trying to get a consensus,
Got a backflow in a building at the riser location, what is the preferred
type of connection at the wall which would allow for forward
The way I have handled this if the system demand is more than the main drain
can handle is to provide a valved discharge,onto a paved area or splash
block,calculated to a size to give an equivilent flow to the system
demand.Sounds like a pain but I haven't found any other way.
Lamar Vaughn,SET
What if you don't have a fire pump and the system demand is more than what can
be flowed out of the main drain (BTW, how do you measure the flow out of the
main drain?)
We typically spec a 2 1/2 single outlet (size and # of outlets dependent on
the system demand), flush-type test connection
you could simply leave a single FHV if that's suffieient for your flow; if
you start getting in to needing multiples, we'd stick a valved outlet on it
and when the test is performed, install a piece of 8 we have with 6- 2.5
FHVs, run the test, take it home for the next time we need to flow a fire
Here is the problem
Have a dry pipe system where a portion of the building is rated R and the
remainder
is A B.
Recently TYCO has come out with residential dry pendent sprinkler for
residential systems.
OK now here is my question What have you contractors' done in the past in
Does anybody have any experience using Big Ass Fans and ESFR heads? I have a
Fire Marshall questioning the use of the (2) in the same warehouse.
Brian Harris
Design Engineer
First Defense Fire Protection
11957 Ramah Church Road
Huntersville NC 28078
br...@firstdefensefire.com
The residential dry pendant is approved for dry pipe systems!
Matt Grisé PE*, LEED AP
Sales Engineer
Alliance Fire Protection
*Licensed in KS MO
913.888.0647 ph
913.888.0618 f
913.927.0222 cell
www. AFPsprink.com
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From: sprinklerforum-boun...@firesprinkler.org
The residential area is a conditioned space above and below the ceiling, why
can't we use residential pendents on return bends?
Mike
From: m...@afpsprink.com
To: sprinklerforum@firesprinkler.org
Date: Mon, 26 Jul 2010 13:36:35 -0500
Subject: RE: Residential Sprinklers on a dry System
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Anyone have experience with an ammonia quenching systems?
Ron Fletcher
Aero Automatic
Phoenix, AZ
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For Technical
EXTREME amounts of water to knock it down if you go that route. There are
several methods of handling mitigation but no specific design criteria, mostly
industry recommendations. You need to check with local Haz Mat responders,
owner's insurance underwriter, as well as other interested AHJ's
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The Sprinkler Age magazine has an article about this with pictures of various
options in last months edition.
Forest Wilson
Cherokee Fire
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From: George Church for...@ptd.net
Date: Mon, Jul 26, 2010 11:27 am
Subject: Test connection
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