We are currently replacing some existing deluge systems with a dry pilot line. We are trying to determine the correct testing methods for this piping in accordance with NFPA 13 - 2013.
We are trying to determine if a 200 psi hydrostatic test is required and/or a 24 hour air test. 25.2.2 which describes the air test addresses Dry Pipe and Double Interlock Preaction systems by title. While the pilot line is like a dry system it isn't one by definition. At the same time 25.2.1.1 prescribes hydrostatic testing for "all piping and attached appurtenances subjected to system working pressure" this line should not normally see system water and water pressure. 25.2.1.12 deals with deluge systems, but appears to address only the discharge piping? We've already hydro tested the line, but the question has been brought up about 24 hour air testing. Mike Morey, CFPS, SET Planner Scheduler/Designer BMWC Constructors, Inc. 1740 W. Michigan St, Indianapolis, IN 46222 O: 317.651.0596 | C: 317.586.8111 [email protected]<https://owa.bmwc.com/owa/redir.aspx?C=hEc2LsZXLUqfB3v1fAsIUDtQSkfsw9AIUxDXhx81O08DpGEK3NHRaSbWuncnZEk-mLpe2vYiBJY.&URL=mailto%3amanta%40bmwc.com> | www.bmwc.com<https://owa.bmwc.com/owa/redir.aspx?C=hEc2LsZXLUqfB3v1fAsIUDtQSkfsw9AIUxDXhx81O08DpGEK3NHRaSbWuncnZEk-mLpe2vYiBJY.&URL=http%3a%2f%2fwww.bmwc.com%2f> _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
