Roland, for your discussion at the RoP meeting, I just surveyed an existing system that had some recent repairs and found a couple of new bushings in new tees. On checking closely, the orignal fittings had been 3-1/2 x 3 x 3-1/2. The new fittings were 4 x 3 x 4 with a pair of 4 x 3-1/2 bushings. There was no room to do reducers and I would bet finding the 3-1/2 tees, and probably the 4 x 3-1/2 reducers, would be pretty hard.
Dave at Firetech Engineering Inc Roland Huggins <[EMAIL PROTECTED]> wrote: The use of bushing has been expanded in 13 to allow for future system modifications. It's somewhat limited by being placed under 8.15.19.2 (Piping to Sprinklers Below Ceilings) since many facilities are not using ceilings. This issue was originally pushed by Caputo (I think) and should be further addressed at the upcoming ROP meeting. How's that for a nudge? Did any Forumites send in any proposals? Roland On Oct 22, 2007, at 8:31 AM, Thom McMahon wrote: > The best practices of the industry, should in my opinion include 1" > outlets for all areas that are designed for tenant fit out. I > really hate the 1/2" SSU heads 4" blow the deck and 15' AFF, on a > 11/2x11/2x1/2 tee, when you know the finish ceiling will be > somewhere between 9 and 14'. I know from asking that there are only > two reasons for this practice, 1) Its cheaper and 2) it allows the > contractor to charge more for the tenant fit out. Total life cycle > costs may be a stretch for us to estimate for a sprinkler system, > but Total installation costs should not. (Most AHJ's don't allow > the heads to be added as a retrofit, with a 1/2" nipple to a 1x1/2 > ell or such, they rightly believe that if the area was always > intended to have a tenant fit out with the possibilities of a lower > ceiling then that should have been allowed for in the original > design for the space.) _______________________________________________ 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) _______________________________________________ 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)
