Steve, See NFPA 25/ 13.6.2.1(1)/2008 ed.
On Fri, May 30, 2008 at 11:57 AM, Steve Leyton <[EMAIL PROTECTED]> wrote: > Seeing as the backflow isn't a fire appliance, it makes sense that it's > outside the scope of 13. I'm pretty sure the "full forward flow test" > is a jurisdictional agency thing, i.e. NAVFAC or the serving water > company. So fire officials might require it too - for peace of mind > perhaps? > > BTW, you mitigate the clapper issue by turning the FDC body upside down. > Duh. > > Steve Leyton > Protection Design & Consulting > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mark > Sornsin > Sent: Friday, May 30, 2008 11:33 AM > To: [email protected] > Subject: RE: 200 psi test for components rated 175 > > Don't most FDCs include clappers? How do you backwards flow out an FDC > with clappers? And what do you do when the system has a high demand > volume - say over 500 gpm? You'll have a tough time flowing it out an > FDC even without clappers. > > Seems it's the responsibility of the engineer of record (when they're > present) to require the test outlet so the owner has a means of meeting > the requirements of NFPA 25 - even if the inspectors never end up > testing the backflow. > > When there is not an engineer of record, and a contractor is asked to > design/install a system per code, I don't believe there is any language > in NFPA 13 that would force a contractor to install the test outlet. > > Mark A. Sornsin, PE > Fire Protection Engineer > Ulteig Engineers, Inc. > Fargo, ND > 701.280.8591 > [EMAIL PROTECTED] > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Gregg Key > Sent: Friday, May 30, 2008 12:23 PM > To: [email protected] > Subject: Re: 200 psi test for components rated 175 > > Yep, that could be the reason it is shown. > > Yea Matt, sorta trick question, We have installed a few wall hydrants at > Military bases. > Funny thing is that they do there own inspections and they don't > follow NFPA 25 that requires an annual forward flow on the backflows. So > the only systems in our area that do have them , are not being used. > OK while we are at it, how many NFPA 25 inspectors perform the > required forward flow test annually? > > > - > _______________________________________________ > 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)
