I wouldn't say it's "common" these days, but not because it's a bad practice. I think it's widely accepted that grooved joining is lower cost and lower impact all around. Grooved fittings are lighter, more compact, lower material cost, lower labor cost to install, easier to change pipe sizes into and out of fittings, easier and it's cheaper to prep piping for grooved joints. But flanges are a perfectly good means of joining pipe and fittings if you need to used them ...
SML -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Friday, January 15, 2016 2:08 PM To: [email protected] Subject: Ductile Iron Fittings Is it common practice to install ductile iron fittings in riser manifolds? For instance - a 6" x 6" x 4" flanged tee. J. Scott Mitchell, PE Fire Protection Engineer | Projects Engineering CNS Pantex | 806.477.5883 | _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
