Re: Dry system return bend - aux drain needed?

2017-03-30 Thread Roland Huggins 
Another one of those things are are assumed to be understood.  Since the return 
bend is not in an area that is subject to freezing, we don’t worry about 
getting the water out.  Having said that, with the new emphasize on corrosion, 
that’s a problem.  It’s still allowed but needs to be revisited.


Roland Huggins, PE - Senior VP Engineering
American Fire Sprinkler Assn.
Dallas, TX
http://www.firesprinkler.org 

Fire Sprinklers Saves Lives




> On Mar 29, 2017, at 9:19 PM, Forest Wilson  wrote:
> 
> What a horrible waste of time. Hopefully this wasnt your local government 
> inspector asking this. If so, you should call the mayor and ask to be 
> reimbursed. Of course you dont need a drain on every sprinkler.
> 
> On Fri, Mar 3, 2017 at 1:49 PM, Dewayne Martinez 
> > 
> wrote:
> NFPA 13 (07ed)
> 
>  
> Section 8.16.2.5.3.3 states that aux drains are not required for pipe drops 
> supplying dry-pendant sprinklers installed per 7.2.2
> 
> 7.2.2 address both listed dry type sprinklers and pendant sprinklers 
> installed on a return bend in a heated space
> 
>  
> I have someone questioning if aux drains are required for pendant sprinklers 
> on return bends because they not specifically “dry-pendant”.  I have always 
> figured that if they were in section 7.2.2 then no aux drain would be needed. 
>  What say’s the forum on this?
> 
> Thanks,
> 
>  
> Dewayne
> 
>  
> 
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Re: Dry system return bend - aux drain needed?

2017-03-29 Thread Forest Wilson 
What a horrible waste of time. Hopefully this wasnt your local government
inspector asking this. If so, you should call the mayor and ask to be
reimbursed. Of course you dont need a drain on every sprinkler.

On Fri, Mar 3, 2017 at 1:49 PM, Dewayne Martinez <
dmarti...@total-mechanical.com> wrote:

> NFPA 13 (07ed)
>
>
>
> Section 8.16.2.5.3.3 states that aux drains are not required for pipe
> drops supplying dry-pendant sprinklers installed per 7.2.2
>
> 7.2.2 address both listed dry type sprinklers and pendant sprinklers
> installed on a return bend in a heated space
>
>
>
> I have someone questioning if aux drains are required for pendant
> sprinklers on return bends because they not specifically “dry-pendant”.  I
> have always figured that if they were in section 7.2.2 then no aux drain
> would be needed.  What say’s the forum on this?
>
> Thanks,
>
>
>
> Dewayne
>
>
>
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> Sprinklerforum@lists.firesprinkler.org
> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.
> org
>
>
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RE: Dry system return bend - aux drain needed?

2017-03-03 Thread Matthew J Willis 
Does the ½” outlet provided by removing the sprinkler not satisfy this?

Unless you have some more trapping?

R/
Matt

Matthew J. Willis
Project Manager
Rapid Fire Protection Inc.<http://rapidfireinc.com/>
1530 Samco Road
Rapid City, SD 57702
Office-605.348.2342
Direct Line-605.593.5063
Cell-605.391.2733
Fax:-605.348.0108

[cid:image001.png@01D159E8.1A3A2D00]

From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On 
Behalf Of Dewayne Martinez
Sent: Friday, March 3, 2017 11:50 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: Dry system return bend - aux drain needed?

NFPA 13 (07ed)

Section 8.16.2.5.3.3 states that aux drains are not required for pipe drops 
supplying dry-pendant sprinklers installed per 7.2.2
7.2.2 address both listed dry type sprinklers and pendant sprinklers installed 
on a return bend in a heated space

I have someone questioning if aux drains are required for pendant sprinklers on 
return bends because they not specifically “dry-pendant”.  I have always 
figured that if they were in section 7.2.2 then no aux drain would be needed.  
What say’s the forum on this?
Thanks,

Dewayne

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Dry system return bend - aux drain needed?

2017-03-03 Thread Dewayne Martinez 
NFPA 13 (07ed)



Section 8.16.2.5.3.3 states that aux drains are not required for pipe drops
supplying dry-pendant sprinklers installed per 7.2.2

7.2.2 address both listed dry type sprinklers and pendant sprinklers
installed on a return bend in a heated space



I have someone questioning if aux drains are required for pendant
sprinklers on return bends because they not specifically “dry-pendant”.  I
have always figured that if they were in section 7.2.2 then no aux drain
would be needed.  What say’s the forum on this?

Thanks,



Dewayne
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