If the life safety system will operate with or without the drain and if it being damaged won't cause damage to the primary life safety system and there is no text stating such ancillary piping is required to be braced, I'd say stick a fork in it, you're done. Sign, seal and deliver.
Craig Prahl | Jacobs | Fire Protection SME - Special Hazards | craig.pr...@jacobs.com<mailto:craig.pr...@jacobs.com> | www.jacobs.com<https://urldefense.com/v3/__http:/www.jacobs.com/__;!!KZTdOCjhgt4hgw!-_khxU8gU0_6jc895I7kRbnU8JghRDsWgqOblZ4jr7Qp2IVbR30VYw_hWvNFtphnl0uWpB9KIvbYi1pvZz4$> 1041 East Butler Road Greenville, South Carolina 29606 CONTACT BY: Phone 1-864-676-5252, Email or MS TEAMS From: Steve Leyton <st...@protectiondesign.com> Sent: Thursday, March 14, 2024 4:19 PM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org> Subject: [EXTERNAL] [Sprinklerforum] Re: Gang drain crossing seismic joint No, and that's exactly my reasoning too. I should have said in my post that I'm not 100% certain because it's being submitted to a preposterously fickly AHJ and they're historically very subjective, but my personal opinion is that it's not required for the reason that you mention. Steve From: Prahl, Craig <craig.pr...@jacobs.com<mailto:craig.pr...@jacobs.com>> Sent: Thursday, March 14, 2024 1:03 PM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>> Subject: [Sprinklerforum] Re: Gang drain crossing seismic joint If the section that crossed the expansion joint were to be torn apart would it have any functional effect on the bldg. sprinkler or standpipe systems? Craig Prahl | Jacobs | Fire Protection SME - Special Hazards | craig.pr...@jacobs.com<mailto:craig.pr...@jacobs.com> | www.jacobs.com<https://urldefense.com/v3/__http:/www.jacobs.com/__;!!KZTdOCjhgt4hgw!-_khxU8gU0_6jc895I7kRbnU8JghRDsWgqOblZ4jr7Qp2IVbR30VYw_hWvNFtphnl0uWpB9KIvbYi1pvZz4$> 1041 East Butler Road Greenville, South Carolina 29606 CONTACT BY: Phone 1-864-676-5252, Email or MS TEAMS From: Steve Leyton <st...@protectiondesign.com<mailto:st...@protectiondesign.com>> Sent: Thursday, March 14, 2024 3:35 PM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Subject: [EXTERNAL] [Sprinklerforum] Gang drain crossing seismic joint All (especially Californicators): We have to cross a seismic joint with the piping that supplies a combination standpipe in a mid-rise building (no PRV's to test). As a combo, there's a collection pipe for sectional test and drain discharge, and for reasons peculiar to this building, our first choice is to bring the gang drain back to the riser room, as it's the only place with a SS trap in the basement. We're trying to decide whether a seismic joint is required of the drain pipe, which is normally dry and never under system pressure in any case. I reckon I should know this, but I don't think we've had to address this condition in forever, maybe never. [cid:image001.jpg@01DA762C.974FD100] Steve Leyton, President T | 619.255.8964 x 102 | www.protectiondesign.com<https://urldefense.com/v3/__http:/www.protectiondesign.com/__;!!B5cixuoO7ltTeg!B-osHGi12Nh6KrP6j70pU15mcljhMbj_QrSX3cHq6GBKaT4zMYyaRasjayk68mR8TImBjGXnp3lBg2xCo4Iu1Rw$> 2851 Camino Del Rio South | Suite 210 | San Diego, CA 92108 Fire Protection System Design | Consulting | Planning | Training ________________________________ NOTICE - This communication may contain confidential and privileged information that is for the sole use of the intended recipient. Any viewing, copying or distribution of, or reliance on this message by unintended recipients is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and deleting it from your computer. ________________________________ NOTICE - This communication may contain confidential and privileged information that is for the sole use of the intended recipient. Any viewing, copying or distribution of, or reliance on this message by unintended recipients is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and deleting it from your computer.
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