Ron, How many did you see corroded and leaking that didn't have a tri-seal or flush-seal? I can send you many of pictures of corroded, leaking ends of pipe with roll grooves and no tri-seal or flush-seal. Some as early as ten years.
Scott Office: (763) 425-1001 x 2 Cell: (612) 759-5556 -----Original Message----- From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Ron Greenman via Sprinklerforum Sent: Friday, April 30, 2021 3:44 PM To: sprinklerforum@lists.firesprinkler.org Cc: Ron Greenman <rongreen...@gmail.com> Subject: Re: Dry System Couplings Scott, My anecdotal experiences as someone that was a troubleshoot and repair mechanic when I was doing hands-on work, has been that I can't recall ever seeing a leaky tri-seal fitting in a heated, unheated, or cold storage facility whether part of a dry or a preaction system. On Fri, Apr 30, 2021 at 10:47 AM Scott Futrell via Sprinklerforum < sprinklerforum@lists.firesprinkler.org> wrote: > I'd sure be interested in hearing more on this subject. > "Listing" only partially answers the question. > Roll groove v. cut groove makes a difference. > If the bottom line is as cheap as possible then you go one route. > If the bottom line is an effective fire sprinkler system for the life > of the building, you go a different route. > > Scott > > Office: (763) 425-1001 x 2 > Cell: (612) 759-5556 > > -----Original Message----- > From: Sprinklerforum [mailto: > sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Tom Noble > via Sprinklerforum > Sent: Friday, April 30, 2021 8:14 AM > To: Ron Greenman via Sprinklerforum > Cc: Tom Noble > Subject: Re: Dry System Couplings > > NFPA 13 2016 edition section 6.5.3.2 only requires the couplings to be > listed for dry system use. If the coupling is listed for use in dry > or precaution systems it is fully acceptable to be used. Some > manufactures will suggest to use a “Flush or Tri-seal” gaskets in cold > storage or freezer applications to prevent the water build up in the gasket > itself. > Ultimately, not a code requirement. > > The above is my opinion and has not been processed as a formal > interpretation in accordance with the NFPA Regulations Governing > Committee Projects. This is provided with the understanding that the > AFSA assumes no liability for this opinion or actions taken on it and > they are not to be considered the official position of the NFPA or its > technical committees. > AFSA cannot provide design or consulting engineering services, and > this opinion should therefore not be considered, nor relied upon, as such. > > > On Apr 30, 2021, at 7:42 AM, Taylor Schumacher via Sprinklerforum < > sprinklerforum@lists.firesprinkler.org> wrote: > > > > I'm digging through coupling data sheets and I'm seeing that most > > are > listed for use in wet and dry systems even when they do not have the > gap seal. Is there a requirement for using gaskets that have this gap > seal gasket or is it more of a best practice thing? > > > > Taylor Schumacher > > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl > er.org > _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
