Sprigs do not require sway bracing, but there is this: 9.3.6.6 Sprigs 4 ft or longer shall be restrained against lateral movement.
Thank you, Bob Knight, CET III Fire by Knight, LLC 208-318-3057 -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Matthew J Willis via Sprinklerforum Sent: Wednesday, December 30, 2020 12:28 PM To: [email protected] Cc: Matthew J Willis Subject: RE: CPVC EQ Bracing - 2 hole straps and another question To my knowledge, the 2 hole strap is listed as a hanger only. Not for seismic. The second question is a good one. I love Chapter 3, especially for seismic. Check 3.5.11 in the 2016 for a "Sprig". The standard mandates riser for 4 way if they exceed 3'-0". Riser Nipples, the piece between a Cross Main and Branchline, 3.5.9, are excluded. 3.5.10 is for "Risers". Given that the definition of a sprig, seems different than Riser, you may have a point. But Riser is pretty broad. R/ Matt -----Original Message----- From: Sprinklerforum <[email protected]> On Behalf Of J H via Sprinklerforum Sent: Wednesday, December 30, 2020 12:13 PM To: [email protected] Cc: J H <[email protected]> Subject: CPVC EQ Bracing - 2 hole straps and another question Hello, I thought that two hole straps used to secure CPVC acted as seismic bracing? I don't know where I've heard that and couldn't find anything in the standard. Is this correct? Also, if you have a 1"x8'-6" riser to a single horizontal sidewall sprinkler would that technically be an 'armover' and not require seismic or would that fall under being a riser requiring seismic bracing? Thanks, JH <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai gn=sig-email&utm_content=webmail&utm_term=icon> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai gn=sig-email&utm_content=webmail&utm_term=link> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> _______________________________________________ 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
