Yea, I'm with Bob- we use Mega or Kwik flanges all the time without incident. Guess Joe was right in waiting for a U Certificate :) LOL
And almost ANY device or method is subject to screwup when done wrong. There's a grocery store chain around here that doesn't allow welded outlets AT ALL. All mech tees (sigh). Must be a horror story there somewhere- cause in the rest of the industry, we sure use a lot of welded outlets day in and day out. Hm. Or at least- we used to ! glc -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bob Knight Sent: Tuesday, October 20, 2009 5:25 PM To: [email protected] Subject: RE: Retaining rod on UG-tangent In my personal experience, except for Joe's example, haven't seen or heard any horror stories of retainage flanges giving when properly installed. BK -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Greg McGahan Sent: Tuesday, October 20, 2009 3:15 PM To: [email protected] Subject: RE: Retaining rod on UG-tangent Out of curiosity, what is the performance report you guys have experienced when using megalugs in this fashion without rods? Greg McGahan Operations Manager Living Water Fire Protection 1160 McKenzie Road P.O. Box 877 Cantonment, Florida 32533 (850) 937.1850 | Fax (850) 937.1852 | Cell (850) 554.3231 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, October 20, 2009 4:05 PM To: [email protected] Subject: RE: Retaining rod on UG-tangent Simply put, assuming you using push-on type joints for the underground, you rod from the base 90 up to the flange to keep the vertical piece in place. The flange isn't moving so it holds it all together. If the underground joint at the 90 used mega-lug or mechanical joints as it rose up to the flange at the floor then the rods between the base 90 and the riser flange are superfluous. Check NFPA 24, 10.8.3 (2007) for the restrained joint details. Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Mark Sornsin Sent: Tuesday, October 20, 2009 4:50 PM To: '[email protected]' Subject: RE: Retaining rod on UG-tangent Geo.: Are you saying these rods may not be necessary because of the restraint that may be present at the 90 deg. elbow below ground? If so, what would be restraining the flange they're tying into (above the floor)? Mark A. Sornsin, PE Fire Protection Engineer Ulteig Engineers, Inc. Fargo, ND Direct: 701. 280.8591 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Church Sent: Tuesday, October 20, 2009 1:10 PM To: [email protected] Subject: RE: Retaining rod on UG And if there's already a megalug and/or thrust block on the 90 below, they're superfluous code-wise. Only need 1 of the 3 methods of joint restraint. glc -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, October 20, 2009 2:00 PM To: [email protected] Subject: Re: Retaining rod on UG Chris, Sounds like the installer went to far more trouble than it was worth and may have done damage in the process.The rod could have been left alone and connected to the flange by way of right angle "tie bolts".I have not found a restriction on welding the rod (we always used threaded rod couplings) and as for bending the rod,as long as you don't try to bend @ a 90 so as to break the core of the rod between the threads the inspector may not take any issue with it.But who knows,bending is bending.At least it isn't yours,since you are starting at the flange. Has the floor already been poured @ the run-in? Lamar Vaughn -------------- next part -------------- No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 8.5.422 / Virus Database: 270.14.23/2448 - Release Date: 10/20/09 10:43:00 _______________________________________________ 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)
