From a. Fitters asspect. I would just cut the 3" main , roll groove it in place and install a 3" grooved tee then reduce the bull outlet Tom berry Precision fire protection Service/inspections [email protected].
Sent via DROID on Verizon Wireless -----Original message----- From: John Denhardt <[email protected]> To: "[email protected]" <[email protected]> Sent: Thu, Nov 11, 2010 13:59:36 GMT+00:00 Subject: Re: reduce then increase pipe sizes It is allowed. You are not missing anything. Ask the AHJ for a reference. John Sent from my BlackBerry® smartphone with Nextel Direct Connect -----Original Message----- From: Todd Williams <[email protected]> Sender: <[email protected]> Date: Thu, 11 Nov 2010 08:50:35 To: <[email protected]> Reply-To: <[email protected]> Subject: reduce then increase pipe sizes I am working on an existing system where we have to tie in a new 2-1/2" main into an existing 3". Since they do not make a 3x2-1/2 mechanical tee, that option is out. My proposal is to utilize an existing plugged 2" outlet, install a 2 x 0-6 TxG nipple and then increase to 2-1/2". It works hydraulically with 18+ psi left over (reducing the 2-1/2" main not an option hydraulically). I don't see anything in the Code that states that it is not allowed. However, the AHJ says it isn't. Before I argue the point, am I missing something? Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
