NFPA 13, 2007 8.3.4.3 Sprinklers with nominal K-factors of K-4.2 (60) shall be permitted to be installed on dry pipe systems where piping is corrosion resistant or internally galvanized.
8.4.7.1 Large drop sprinklers shall be permitted to be used in wet, dry, or pre-action systems. 8.4.7.2* Galvanized Pipe. 8.4.7.2.1 Where steel pipe is used in pre-action and dry pipe systems, piping materials shall be limited to internally galvanized steel. 8.4.7.2.2 Non-galvanized fittings shall be permitted. 8.3.4.3 Sprinklers with nominal K-factors of K-4.2 (60) shall be permitted to be installed on dry pipe systems where piping is corrosion resistant or internally galvanized. Thom McMahon, SET Firetech, Inc. 2560 Copper Ridge Dr P.O. Box 882136 Steamboat Springs, CO 80488 Tel: 970-879-7952 Fax: 970-879-7926 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Denhardt Sent: Wednesday, March 17, 2010 11:57 AM To: [email protected] Subject: RE: Exterior dry system piping under canopy Not that I am aware. "Large drop" sprinklers had a requirement for galvanized pipe with dry and pre-action systems. John John August Denhardt, P.E. Strickland Fire Protection Incorporated 5113 Berwyn Road College Park, Maryland 20740 Office Telephone Number: 301-474-1136 Mobile Telephone Number: 301-343-1457 FIRE SPRINKLERS SAVE LIVES -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bobby Gillett Sent: Wednesday, March 17, 2010 2:02 PM To: [email protected] Subject: RE: Exterior dry system piping under canopy Thanks, John. Wasn't there somewhere in NFPA 13 that states preaction systems shall utilize galv piping? Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Denhardt Sent: Wednesday, March 17, 2010 12:39 PM To: [email protected] Subject: RE: Exterior dry system piping under canopy It is not required to be galvanized per NFPA 13. John John August Denhardt, P.E. Strickland Fire Protection Incorporated 5113 Berwyn Road College Park, Maryland 20740 Office Telephone Number: 301-474-1136 Mobile Telephone Number: 301-343-1457 FIRE SPRINKLERS SAVE LIVES -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bobby Gillett Sent: Wednesday, March 17, 2010 1:44 PM To: [email protected] Subject: Exterior dry system piping under canopy I have a dry system (non-FM in TN) under an exterior canopy. Is there somewhere it states the pipe and fittings are to be corrosion resistant (ex. Galv.)? I thought somewhere it stated for preact it had to be regardless, but I can't find that either. Maybe I'm pulling an old spec from a project out of my brain as the last two I've done have required galv. piping per the spec book. Bobby Gillett Sr. Project Manager Key Fire Protection, Inc. (731) 424-0130 office (731) 424-9285 fax (731) 267-4853 cell <mailto:[email protected]> [email protected] _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.791 / Virus Database: 271.1.1/2752 - Release Date: 03/17/10 02:33:00 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
