Ben, Look at the Victaulic Sheet page 97 it states that they are UL Listed for branch connections, arm-overs,side-arms ( they must mean guns here) sprigs, drop nipples, and direct sprinkler head connections.Suitable hanger support of branch outlet should be considered to prevent Style 922 rotation. Mike
> From: [email protected] > Date: Wed, 30 Sep 2015 12:44:15 -0400 > Subject: Re: Hooklet tees > To: [email protected] > > Mike, > > The AHJ is stating that the installation instructions say that they are not > to be used for branch line outlets. > I've always taken that to mean that you can't come off a main and feed > multiple heads with one hooker. > The AHJ's interpretation is that this means you cannot come off of a branch > line with them... which makes no sense to anyone at my office. > > Now, though, after reading the data sheet that Damien linked to, where is > says that the strap tees are for heads, drops, or gauages, it makes me > wonder if they don't have a valid point. > http://www.vikinggroupinc.com/usrelated/vgs/V-723.pdf > > We normally use Grinnell 40-5 strap tees, and they specifically say it can > be used with full lengths of pipe... > I've never heard before that you can't (or shouldn't) use strap tees for > armovers. > http://www.tyco-fire.com/TD_TFP/TFP/TFP1720_05_2015.pdf > > Just as a backstory, this is an existing 10 story building that we're doing > basically TFO work for on a few floors. Another GC with another sprinkler > contractor is doing another TFO on another floor in the building, and all > four companies got put on email blast by the AHJ. > > We are about done with our portion of the job, and the hooker fittings were > basically used as WOLs for the shell spaces. Our installers won't touch > them, though, and we put it new mechanical tees if we need to reuse an > outlet (or so I'm told) > > > Benjamin Young > > On Wed, Sep 30, 2015 at 12:20 PM, Mike Hairfield <[email protected]> wrote: > > > They are Victaulic #922 Hooker Tees. > > How does the AHJ know that they were not installed properly? > > Mike > > > > > From: [email protected] > > > Date: Wed, 30 Sep 2015 11:43:36 -0400 > > > Subject: Hooklet tees > > > To: [email protected] > > > > > > Does anyone have any info on these? I know our field guys call them > > hooker > > > tees, but searching for these things on google has been a minefield. > > > > > > Nothing on Victaulic's website... > > > > > > Just to be clear, I'm talking about the strap-style tee with the one-side > > > cast 'hook' that goes around to the back of the piping with the snap-off > > > lock bolt. > > > > > > > > > I've always kind of treated them like FIT fittings or roustabouts: > > > interesting concept, poor execution, and don't touch them if they're > > > existing. > > > > > > We have an AHJ telling us that we have to replace them all on a tenant > > > fit-out because they were not installed properly. > > > > > > Any help would be appreciated. > > > > > > Benjamin Young > > > _______________________________________________ > > > Sprinklerforum mailing list > > > [email protected] > > > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > > _______________________________________________ > > Sprinklerforum mailing list > > [email protected] > > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
