Nov 27, 2018 #1 Kashawy Mechanical Joined Nov 27, 2018 Messages 6 Location QA Hello, Is there any requirements by NFPA for fixing the levels of cross mains? in other words, is it possible to change the levels of cross mains to avoid any clashes with other pipes/ ducts?
Hello, Is there any requirements by NFPA for fixing the levels of cross mains? in other words, is it possible to change the levels of cross mains to avoid any clashes with other pipes/ ducts?
Nov 27, 2018 #2 SprinklerDesigner2 Mechanical Joined Nov 30, 2006 Messages 1,281 Location US We do it all the time just remember the Maine has to drain. Upvote 0 Downvote