Didn't we just have a discussion about 13 allowing some unlisted materials used commonly such as pipe that meets certain other criterion. I'm not suggesting that split rings necessarily meet such a criterion but....
On 11/2/07, Bill Minkel <[EMAIL PROTECTED]> wrote: > 1" & 1 1/4" threaded sch. 40 branch lines in high-rise residential dwelling > units (owner declined CPVC). In order to clear HVAC in central corridor I > had to rise up to 2" CL below concrete deck and had to maintain this in the > dwelling units to clear HVAC in there. With not enough room for a rod & > swivel ring I opted for the split-ring since I had used them before for > stand-off and close clearance to deck. Our field superintendent pointed out > that split rings are not listed and only rated for 180# loads, so my > quandary. Even the Appendix of NFPA-13 (FigA.9.1.1) shows split rings as one > of the common acceptable types but the guts of 9.1(2002) seem to rule > unlisted split rings out and no point in trying to get a Structural PE > certify one (that's the manufacturers job). In desperation and squirming I > appealed to the Forum in hopes I might find some loophole, no luck, LOL. I > can't risk a building inspector making us tear out 1,500 supports on a > "technicality". I think from a realistic POV the split rings would be OK > supports for this application, no one will use them for Monkey Bars, but > technically ... > > So we will use an FM approved ERICO EPB ring support less swivel nut which > will let me get my 2" by using a QwikBolt or 1 1/2" lg. rod and HILTI and a > hexnut/washer to snug it tight to the deck. Here is a business opportunity > for someone to produce a Listed Split Ring, maybe from steel instead of > malleable iron. > > I guess I will stop using Split Rings except for stand-off of vertical > drops. > > > Bill Minkel, Designer > Member NFPA > Western States F.P., Dallas > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Gregg Fontes > Sent: Friday, November 02, 2007 1:17 PM > To: [email protected] > Subject: RE: Split-Ring Hanger > > Bill, > > What was the condition that would make one decide to use a split ring? Just > curious. > > Thanks, > Gregg Fontes > Cen-Cal Fire Systems, Inc. > (209)334-9119 > > > _______________________________________________ > 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) > -- Ron Greenman at home.... _______________________________________________ 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)
