Thank you everyone for your reply's.
Gone out now, too late for more changes. See if we get it before I start to
sweat.
Thanks again
Thom McMahon
Firetech, Inc.
2560 Copper Ridge Dr
Steamboat Springs, CO 80488-2136
Tel: 970-879-7952
Fax: 970-879-7926
----- Original Message -----
From: "Ray Schmid" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, April 13, 2007 7:30 AM
Subject: RE: Computer rooms
Although it may not applicable to this project, under the 2007 edition,
PA system piping is now required to be pitched.
The DoD, under the UFC guidelines typically requires an operating area
of 3,000 sf, plus 30% for PA. The "major defense contractor" may be held
to this criteria, in which case the 1-hr separation is critical.
Ray Schmid
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Thom
McMahon
Sent: Thursday, April 12, 2007 5:53 PM
To: [EMAIL PROTECTED]
Subject: Computer rooms
1200 Sf computer room, raised floor. Ceiling height unknown, maybe at
roof?
Media storage unknown, major defense contractor, possibly reel to reel
or
stacked DVD/CD. Computer racks, unknown. Main frames unknown. System
loss
impact to client unknown. Water supply unknown. Existing wet sprinkler
system in place, Light or Ord haz unknown.
To bid this project today we are assuming the following:
Minimum adequate water supply at room 50 Psi @ 250 Gpm in nearby fire
sprinkler main. (less than 50 LF away)
Flow control preaction system
OH II design density
ceiling /roof and under floor protection
Alarm and detection by others
Electric by others
Fire extinguishers by others
Minimum 1 hour rated room
Anyone see anything I should have said besides "Forget it"? Or Add 100%
for
lack of candor.
Thom McMahon
Firetech, Inc.
2560 Copper Ridge Dr
Steamboat Springs, CO 80488-2136
Tel: 970-879-7952
Fax: 970-879-7926
----- Original Message -----
From: "Roland Huggins" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, April 12, 2007 1:21 PM
Subject: Re: CPVC products
You'll want to confirm that the LISTING allows mixing. I looked in
the
past for mixing fittings and elbows (metal) from different
manufacturers
and the two are generally restricted to be from the same mfg.
Roland
On Apr 12, 2007, at 9:58 AM, Paul Sincaglia wrote:
Folks-
Just a general question regarding CPVC.
As a specifier, I normally make no distinctions regarding the
manufacturer or brand name for piping or fittings. I simply state
the
material and relevant/applicable ASTM standards etc. After all, I
want
my clients to get the best pricing and open specs tend to do that.
Obviously I make exceptions to that if I have a good reason
(hydraulic
performance, specific feature needed/wanted, similarity with an
owners
other systems etc.)
Which brings me to my question...Is there any need to be more
specific
about CPVC products? I have always held the belief that CPVC is
CPVC.
Provided that supplier of pipe and/or fittings maintains a UL listing
(or other listing) for their products for fire protection use, then
the
parts are essentially interchangeable. Am I wrong?
I know that Blazemaster in their literature will generally steer you
toward product mfg/suppliers that use their resin and assume the
others
do the same. But I have always seen this as being the equivalent of
GM
wanting me to use Genuine GM parts.
Does anyone have any hard factual data to the contrary such as
technical
bulletins etc.
Thanks
Paul Sincaglia
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Chris
Brown
Sent: Wednesday, April 04, 2007 1:43 PM
To: [EMAIL PROTECTED]
Subject: RE: CPVC & Seismic Bracing
Maybe this will help
To register click on this link https://www.krm.com/clse
Topic: New Seismic Requirements with NFPA and IBC The topic of
seismic
design has become well known to many over the past five years. And
like
many, your learning experience has most likely come with a cost. The
new editions of NFPA and IBC have arrived and offer a much more
understandable process for those of us involved with fire protection
systems to apply. This seminar has been organized with condensed
step-by-step information that leads from the "when" through to the
"how". Whether you have wrestled with this before or you have not
yet
experienced this process, this seminar will be valuable to both
engineers of record, sprinkler system designers and authorities of
jurisdiction. You do not want to miss this.
Thank you,
Chris Brown
Fire Protection Designer, Poole Fire Protection
Office: 913.829.8650 Direct: 913.747.2056 Cell: 913.208.3600
Fax:
913.829.8690
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, April 04, 2007 12:09 PM
To: [EMAIL PROTECTED]
Subject: Re: CPVC & Seismic Bracing
Roland,
That's exactly what I thought and tried to explain to the South
Carolina
State Fire Marshall's office. They insist the piping has to be 2
1/2" or
larger.
Matt
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| | Roland Huggins |
| | <[EMAIL PROTECTED]>|
| | Sent by: |
| | [EMAIL PROTECTED]|
| | prinkler.org |
| | 04/04/2007 12:32 PM |
| | Please respond to |
| | sprinklerforum |
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| [EMAIL PROTECTED]
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the pipe size on the branch line is when a sway brace is REQUIRED for
the branch line. That criteria does NOT eliminate the requirement to
sway brace the main by use of an offset brace thus size is immaterial
(except for the brace being listed for the size of interest). If the
brace wasn't listed for 1 inch (which it is), then as the designer,
you'd need to size the starter piece to meet the needs of the brace.
Roland
On Apr 4, 2007, at 8:35 AM, [EMAIL PROTECTED] wrote:
I know this was discussed recently but I don't think this specific
point was brought up. Currently there is only one listed sway brace
for CPVC and it is a lateral brace. Now in order to provide
longitudinal bracing it was suggested to install a lateral brace on
the branch line within 24 in. of the main. However if you read
9.3.5.3.5 it states "...for lines that are 2 1/2" and greater in
diameter". So what do you do for a 13R system with lets say 1 1/2"
mains and 1" branch lines?
Matt Drewello
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