I know I am late on this one but I have to know. My fitters commonly core a 6in hole in the stair landing for 4in pipe when running standpipes. It looks like we should be coring a 8in hole per 9.3.4.2. Am I reading this correct? Thanks, Dewayne
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bobby Gillett Sent: Thursday, July 07, 2011 3:57 PM To: [email protected] Subject: Pipe Sleeves We have an existing school we are sprinkling. When we pass through a block wall, non-rated (smoke, fire etc.) we plan on providing clearance or a flex coupling within a foot of the wall on both sides of the wall. Does it say anywhere we have to use sleeves for block walls? We will be using Sch. 10 & 40 pipe as well as CPVC. I can't seem to find anything other than NFPA 13 - 2007 9.3.4.3 "Where clearance is provided by a pipe sleeve.." But nothing requiring one. Thank you in advance. 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)
