Therein is the difference, a preaction system uses a deluge valve, not a dry pipe valve. It's an apple/orange comparison.
On Fri, Feb 6, 2015 at 8:51 AM, markloganryan <[email protected]> wrote: > The book shows single preaction systems fdc on the system side with a > check valve after fdc supply. Which means the trim to the valve must > connect above that check valve. (Never ran into this situation). I suppose > the same could be done with a solenoid released dry valve. > > > Sent from my Verizon Wireless 4G LTE smartphone > > <div>-------- Original message --------</div><div>From: Lamar Vaughn < > [email protected]> </div><div>Date:02/06/2015 3:13 AM (GMT-07:00) > </div><div>To: [email protected] </div><div>Subject: > Re: FDC on a dry system </div><div> > </div> > I recently researched this issue for a customer just to make sure I was > right. I have been in this industry since 1969, and FDC's have NEVER been > allowed on the system side of the dry pipe valve. > > Respectfully Submitted, > > Lamar Vaughn, SET > _______________________________________________ > 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
