Well????
You are correct based on the intent of NFPA 13 IN MY HONEST OPINION. However, 8.17.2.4.1.2 (2013) stated that attaching to a main is okay. This is a sub-section to 8.17.2.4.1 - The fire department connection shall be on the system side of the water supply check valve. And the main you are tying into complies but there is a dry valve in between. The practical issue is that the fire department connection most likely will leak pressurized air that is on the dry pipe system piping. What is going to keep the fire department connection check valve air tight? Is the rubber going to dry out? John -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Gregory Lindholm Sent: Thursday, February 05, 2015 5:01 PM To: SprinklerFORUM Subject: FDC on a dry system I always went by having to take the supply for the FDC, from a tee between the system control valve, and the dry pipe valve. (On a single dry pipe system). NFPA #13 - 2010, 8.17.2.4.2(2) states it this way. 8.17.2.4.1.2 says that it can be connected to the main piping on the system it serves, ie: the end of a cross main. I always believed that taking off the end of the cross main only applied to wet pipe systems. I am not agreeing with somebody that says that it can come off the end of the main on a dry system also. What am I missing, or have I been wrong? Greg Lindholm _______________________________________________ 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
