Hello Matthew,
I did some seismic for CPVC here in SC a few months ago. Using the
Afcon Lateral brace for Longitudinal brace om 1 1/2" pipe. The part
number is #030/040 Sway Brace (Model K).
See Below
Main
|
| 6" nipple with Cap Same size as the main pipe
T-Fitting > |--------)
| ^
| ^
^Attach Brace here running along arrows.
I put this note on my drawings RIGHT below the detail picture (YOU
need to edit the values for YOUR piping):
>T Fitting in pipe with 3" nipple and pipe cap for attachment.
>T Fitting and nipple are same size as pipe run.
>(8 locations)
>We request acceptance of the proposed longitudinal bracing support
>as detailed above as an alternate method of construction per State
>Regulation 71-8300.12. We believe the proposed installation meets the
>intent of longitudinal bracing requirements for this project.
>The weight of 59 feet of 1 œ" waterfilled CPCV piping and 15 feet of
>1" waterfilled CPVC piping 83.603 and 10.125 pounds respectively
>(1.417 lbs/foot for 1 œ" piping and .675 lbs/foot for 1" piping per
>Blazemaster Pipe Dimensions and Weight table found on page 16 of the
>April 2006 Blazemaster Engineering Manual).
If you need a detail for this look on the Afcon Site or contact me off
list and I will dig it out and send it.
Wednesday, April 4, 2007, 1:09:02 PM, you wrote:
> 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
> |---------+---------------------------------------->
> | | Roland Huggins |
> | | <[EMAIL PROTECTED]>|
> | | Sent by: |
> | | [EMAIL PROTECTED]|
> | | prinkler.org |
> | | 04/04/2007 12:32 PM |
> | | Please respond to |
> | | sprinklerforum |
> |---------+---------------------------------------->
>
> >-------------------------------------------------------------------------------------------------------------------|
> |
> |
> | To|
> | [email protected]
> | cc|
> |
> | Subject|
> | Re: CPVC & Seismic Bracing
> |
> |
> |
> |
> |
> |
>
> >-------------------------------------------------------------------------------------------------------------------|
> 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
>>
> _______________________________________________
> Sprinklerforum mailing list
> [email protected]
> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
> To Unsubscribe, send an email
> to:[EMAIL PROTECTED]
> (Put the word unsubscribe in the subject field)
> -----------------------------------------------------------------------------------------------------
> The information transmitted is intended only for the person
> or entity to which it is addressed and may contain proprietary,
> business-confidential and/or privileged material.
> If you are not the intended recipient of this message you
> are hereby notified that any use, review, retransmission,
> dissemination, distribution, reproduction or any action taken
> in reliance upon this message is prohibited. If you received
> this in error, please contact the sender and delete the
> material from any computer. Any views expressed in this message
> are those of the individual sender and may not necessarily reflect
> the views of the company.
> -------------------------------------------------------------------------------------------------------
> _______________________________________________
> Sprinklerforum mailing list
> [email protected]
> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
> To Unsubscribe, send an email
> to:[EMAIL PROTECTED]
> (Put the word unsubscribe in the subject field)
--
Best regards,
Charles mailto:[EMAIL PROTECTED]
_______________________________________________
Sprinklerforum mailing list
[email protected]
http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum
To Unsubscribe, send an email to:[EMAIL PROTECTED]
(Put the word unsubscribe in the subject field)
