Matt, Having seen many cases of failed sch. 7 pipe over the past 10+ years I would tell anyone willing to listen to stay far, far away from it. Pipe schedule is the most basic form of corrosion/leak protection. The thinner the pipe, the shorter the lifespan.
I have also seen several instances where a GC or property owner came back and tried to sue the installing sprinkler contractor because the system started leaking after less than 10 years - through no fault of the contractor. In my opinion installing an inferior product exposes your company to more liability. Lucas Kirn, PE Engineered Corrosion Solutions (314) 415-1387 | http://ecscorrosion.com -----Original Message----- From: Matt Grise <[email protected]> Sent: Wednesday, January 20, 2021 9:58 AM To: [email protected] Subject: schedule 7 pipe? Has there been any push/interest in allowing unlisted (standard ASTM A53) schedule 7 steel pipe to be allowed by code in place of the listed "flow" piping options? Matt _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
