No. You may still supply a multi-story building with a "riser" and come off with sectional control assembly. That "riser" can be a dedicated sprinkler main or a standpipe in a combined system.
Steve Leyton -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, April 12, 2012 8:02 AM To: [email protected] Subject: RE: Floor control valve So each floor will have a separate riser instead of using a combined standpipe riser? Craig L. Prahl, CET Fire Protection CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roland Huggins Sent: Thursday, April 12, 2012 10:59 AM To: [email protected] Subject: Floor control valve The floor control valve for all intents and purposes is going the way of the dodo bird. Starting with the next edition, each floor for building 3 stories and above must be set-up as an individual system. It's also amusing if you follow the current criteria trail, there is nothing that dictates the floor assembly displayed in A.8.17.4.2(b) is currently required (even on a high-rise)!!! Roland On Apr 12, 2012, at 5:08 AM, Morey, Mike wrote: > From NFPA 25 2011: > 3.3.7.2 Sectional Drain. A drain lo cated beyond a sectional control > valve that drains only a portion of the system (e.g., a drain > located beyond a floor control valve on a multistory building). > > Interestingly there is a conflicting entry in NFPA 13 2010 that > probably should be addressed if this is the way we're going (not > requiring full flow main drain tests @ floor controls): > 8.17.3.1 A pressure gauge with a connection not smaller than 1/4 in. > (6 mm) shall be installed at the system main drain, at each main > drain associated with a floor control valve, and on the inlet and > outlet side of each pressure-reducing valve. > > > Mike Morey, SET, CFPS > Sprinkler Designer -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20120412/c14b2722/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
