I don't think NFPA 13 really addresses expansion joints. Normal systems don't generally need to account for movement through other than the built-in flexibility of the piping system.
Now, if you are talking not normal, I was involved in a facility that had a 2000-foot long fire main in the basement, 10-inch diameter, that had three expansion joints along its length. I think they were Dressers, but don't recall for sure. They were the telescoping style to accommodate linear movement. They were not listed for fire main application. You do what is necessary in situations like that. I doubt there is a UL or FM expansion joint, other than for seismic applications. John Hoffman Burns & McDonnell From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Brian Harris Sent: Wednesday, April 11, 2018 3:47 PM To: sprinklerforum@lists.firesprinkler.org Subject: Expansion Joint Trying to find something in NFPA-13 that addresses expansion joints, not a seismic separation, but come up empty. Any help? Brian Harris, CET BVS Systems Inc. Design Manager bvssystemsinc.com<http://bvssystemsinc.com/> Phone: 704.896.9989 Fax: 704.896.1935
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