It's not a Code requirement, just an idea to solve the original problem. Wait to install antifreeze until after the test valve.
At 02:24 PM 9/12/2011, you wrote: >Interesting! I am not able to find it in the 2010 NFPA 13; the requirements >of installing isolation or check valve above the test and drain to isolate >the antifreeze from a system during an inspectors flow test. >Any directive as to this being a code requirement will be appreciated. > >-----Original Message----- >From: sprinklerforum-boun...@firesprinkler.org >[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Douglas Hicks >Sent: Sunday, September 11, 2011 9:44 AM >To: sprinklerforum@firesprinkler.org >Subject: Re: Antifreeze system > > Yes, the BFV is in addition to and after the backflow valve. > >-----Original Message----- >From: Todd - FPDC >Sent: Sunday, September 11, 2011 3:50 AM >To: sprinklerforum@firesprinkler.org >Subject: Re: Antifreeze system > >Is the butterfly valve in addition to the valves on the backflow. If so, >why? > >I assume you have a riser manifold or something similar with a flow switch >and test valve. I would install a check valve above that to be the start of >the antifreeze. Don't forget to install a drain above the check as well. > >Sent from my iPhone > >On Sep 11, 2011, at 3:32 AM, "Douglas Hicks" <fire...@eoni.com> wrote: > >> I have a wet sprinkler system where the entire sprinkler system is filled > >> with antifreeze. The riser comes from the floor, makes a 90 * into a >> backflow device, to a butterfly valve, then to the attic. The inspectors > >> test valve tees off the riser to the attic. My concern is the possible >> loss of antifreeze when opening the inspectors test valve. Is my concern >> warranted? Or should I move the inspectors test valve to a location >> between the backflow device and the butterfly valve? >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: >> ><http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachment >s/20110911/bb8dc583/attachment.html> >> _______________________________________________ >> Sprinklerforum mailing list >> Sprinklerforum@firesprinkler.org >> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >_______________________________________________ >Sprinklerforum mailing list >Sprinklerforum@firesprinkler.org >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >_______________________________________________ >Sprinklerforum mailing list >Sprinklerforum@firesprinkler.org >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > >__________ Information from ESET NOD32 Antivirus, version of virus signature >database 6457 (20110912) __________ > >The message was checked by ESET NOD32 Antivirus. > >http://www.eset.com > > > >__________ Information from ESET NOD32 Antivirus, version of virus signature >database 6458 (20110912) __________ > >The message was checked by ESET NOD32 Antivirus. > >http://www.eset.com > > >_______________________________________________ >Sprinklerforum mailing list >Sprinklerforum@firesprinkler.org >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum Todd G. Williams, PE Fire Protection Design/Consulting Stonington, CT 860.535.2080 www.fpdc.com _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
