If it works hydraulically, I would submit it that way and if it gets approved, your good to go. Try explaining the physical difficulty of grooving the main in the air, most AHJ's I've dealt with will work with under such circumstances.
-----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Friday, November 12, 2010 8:57 AM To: [email protected] Subject: RE: Re: reduce then increase pipe sizes Can you have a reducing tee welded up? Or again, are the clearances too tight? >Cc : >Subject : RE: Re: reduce then increase pipe sizes > >That would be great is we had clear access to the pipe to do that. This is a 100+ year old mill (and 100+ y.o. system) and there are lots of other things in the vicinity of the main. We would have to go a lot further away to be able to do that. At 09:36 AM 11/11/2010, you wrote: > 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 > 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" > _______________________________________________ _______________________________________________ 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)
