What is the orifice size or K factor of the old heads? What area of coverage per sprinkler? Pendent or sidewall? Is this a 13R system? You should be able to match the K or orifice size and not be trouble.
Arthur Tiroly ATCO Fire Protection Design Tiroly and Associates 24400 Highland Rd rm 25, CLE 44143 216-621-8899 216-570-7030 Cell WWW.ATCOfirepro.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Sean Lockyer Sent: Wednesday, January 09, 2013 4:27 PM To: [email protected] Subject: Pre-.05 density heads: What heads can be used as a replacement ? Does anyone know if NFPA has addressed the issue of what to do if you have pre-.05 density residential sprinklers that need to be replaced ? If you have painted and/or damaged heads that are not listed for a minimum .05 density what current residential sprinkler can be used ? To my knowledge NPFA has not addressed this issue yet and every manufacturer I talk to are at a loss for what to do to ensure that a current residential sprinkler can be hydraulically viable on an old pre-.05 system. Short of getting the old plans and doing calculations from scratch what can you do ? What then if you can't get it to work ? The sizes on those old systems were appreciably smaller than the sizes seen in apartments today which makes the problem worse..... The only feasible solution I can think of is to bring back the "replacement residential sprinklers" that were phased out about 10 years ago...... What says the community ? Sean Lockyer Project Designer 4617 Parkbreeze Court Cell 386-279-1197 Orlando, Florida 32808 [email protected] <mailto:[email protected]> Phone: 407-816-9101 www.AITLifeSafety.com <http://www.aitlifesafety.com/> Fax: 407-816-9104 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachment s/20130109/91612919/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 8903 bytes Desc: image001.jpg URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachment s/20130109/91612919/attachment.jpg> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2637/5521 - Release Date: 01/09/13 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
