It is a hanger. But, if your Cp is <0.5 then you can use that you are 6” from top of pipe to point of attachment to structure to eliminate lateral brace and branch line restraint. You will still need longitudinal bracing. There are no listed longitudinal so you have to use a lateral on a short nipple to be your longitudinal.
Sprigs are not risers. But, you have a sprig >48” so it will need restraint. Again, your strap may eliminate the restraint requirement. Travis Mack, CFPS, CWBSP, RME-G, SET Engineering Manager MFP Design 3356 E Vallejo Ct Gilbert, AZ 85298 NEW EXTENSION: 480-505-9271 ext. 700 NEW MOBILE: 480-272-2471 [email protected] www.mfpdesign.com Send large files to us via: https://www.hightail.com/u/MFPDesign LinkedIn: https://www.linkedin.com/in/travismack “The bitterness of poor quality remains long after the sweetness of low price is forgotten.” Need/Want a faster way to check material pricing? Build a material quote? Check availability ? Searching for an invoice? *If you do not already have an account with ferguson.com, click here to register.* **Have a Ferguson account? Download the Ferguson app for on-the-go access to your favorite ferguson.com features. Apple iOS devices or Android devices** ________________________________ From: Sprinklerforum <[email protected]> on behalf of Matthew J Willis via Sprinklerforum <[email protected]> Sent: Wednesday, December 30, 2020 12:27:54 PM To: [email protected] <[email protected]> Cc: Matthew J Willis <[email protected]> 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_campaign=sig-email&utm_content=webmail&utm_term=icon<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon>> Virus-free. www.avast.com<http://www.avast.com> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=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<http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org> _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org<http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org> _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
