Check out NFPA 13(2007) table 22.4.4.7 for your pre-action question.

Ryan Hinson
Burns & McDonnell
Direct: 952-656-6003 Ext 3662

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Eladio N.
Alvarado
Sent: Wednesday, September 09, 2009 8:26 AM
To: [email protected]
Subject: RE: Galvanized Pipe

Todd, I do recall that FM at one point required it, but I though that it
had
been incorporated to NFPA in subsequent revisions? Wasn't that the
reason
for the thread able light wall pipe "XL"? If you would, please
elaborate.


Eladio Alvarado
AFSDII

-----Original Message-----
From: [email protected]
[mailto:[email protected]]on Behalf Of Todd
Williams
Sent: Wednesday, September 09, 2009 9:15 AM
To: [email protected]
Subject: Re: Galvanized Pipe

It's not required by any specific standard, but is required by
several insurance companies


At 09:04 AM 9/9/2009, you wrote:
>Would someone be good enough to direct me to the specific location
where
>Galvanized pipe is required by 13 for Dry systems? And where it may be
>indicated that Pre-action systems are considered "Dry". I've been
trying to
>find it on the On-line codes but I seem to be having trouble dealing
with
>their search engine. Any help would be greatly appreciated.
>
>
>Eladio Alvarado
>AFSDII
>
>
>
>
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Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
www.fpdc.com
860.535.2080
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