Sorry, meant Todd.  Just typing too fast today.

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Dewayne
Martinez
Sent: Wednesday, December 21, 2011 2:30 PM
To: [email protected]
Subject: RE: Residential pendants - deflector distance

Never knew these were listed for this, thanks Tom.

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Todd
Williams
Sent: Wednesday, December 21, 2011 2:09 PM
To: [email protected]
Subject: Re: Residential pendants - deflector distance

I just did a job where that was an issue. We used the Reliable F1 Res 49
LL residential sprinkler and designed using the 4" to 8" criteria.


At 02:56 PM 12/21/2011, you wrote:
>What has the forum done to run residential pendants in exposed pipe 
>applications to meet the 1-4" deflector distance criteria?
>
>There doesn't seem to be a res pnd listed for more than a 4in deflector

>distance.
>
>I have an concrete deck / beam residential application and wanted to 
>run steel pipe but would need to run a 1" Bts  pipe C/L
>
>to keep the deflector within 4in.  .  I am hesitant to run CPVC with 
>2-hole straps tight to the deck because of the possible stress 
>fractures at the fitting/pipe joint.
>
>I guess I will go with QR sprinklers , steel pipe, and run a -8 C/L 
>with uprights and calc 900 SF.
>
> 
>
> 
>
>Dewayne Martinez
>
>Design Build Fire Protection
>
>262-781-7900 (w)
>
>262-781-8401 (f)
>
>414-349-0468 (cell)
>
> 
>
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Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860.535.2080
www.fpdc.com

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