Line size, not like size. Steve, how do you turn off the stinking spellchecker?
Mark at Aero 602 820-7894 Sent from my iPhone > On Jan 18, 2016, at 1:59 PM, "[email protected]" <[email protected]> > wrote: > > Scott, many if not most like size threaded fittings are now manufactured from > ductile iron. It's cheaper than malleable and stronger than cast iron. > > Mark at Aero > 602 820-7894 > > Sent from my iPhone > >> On Jan 18, 2016, at 1:52 PM, "[email protected]" >> <[email protected]> wrote: >> >> B16.4 is for gray iron which I think is the most common form for fire >> sprinkler system above ground threaded fittings. >> >> I'm attempting to determine the applicable standard for ductile iron flanged >> fittings AND whether or not such fittings are permissible in the above >> ground portion of the fire sprinkler system. Specifically in the riser >> manifold. It could be a flanged ductile iron tee or flanged ductile iron >> spool piece, etc. >> >> I heard that they are being used as I described. So, I thought I'd look it >> up to see if NFPA 13 allowed it. And, none of the standards listed in the >> acceptable materials table address ductile iron. >> >> I'm comfortable with pointing to 1.7 as a "back up" justification. But, any >> more help would be appreciated. >> >> J. Scott Mitchell, PE >> Fire Protection Engineer | >> Projects Engineering >> CNS Pantex | 806.477.5883 | >> >> >> -----Original Message----- >> From: Sprinklerforum [mailto:[email protected]] >> On Behalf Of Matthew J Willis >> Sent: Monday, January 18, 2016 2:29 PM >> To: [email protected] >> Subject: RE: Ductile Iron Fittings >> >> Scott, >> >> Isn't 36.10M for Welded and Seamless pipe? >> B16.4 is for fittings. >> >> R/ >> Matt >> >> Matthew J. Willis >> Project Manager >> Rapid Fire Protection Inc. >> *NEW ADDRESS* >> 1530 Samco Road >> Rapid City, SD 57702 >> Office-605.348.2342 >> Direct Line-605.593.5063 >> Cell-605.391.2733 >> Fax:-605.348.0108 >> >> >> >> -----Original Message----- >> From: Sprinklerforum [mailto:[email protected]] >> On Behalf Of [email protected] >> Sent: Monday, January 18, 2016 7:27 AM >> To: [email protected] >> Subject: RE: Ductile Iron Fittings >> >> Thanks for all the responses. >> >> The reason is because NFPA 13 does not include ductile iron (ASME B36.10M) >> in the acceptable materials table. My opinion is that it is functionally >> more than adequate. >> >> Would this be covered by section 1.7 (2016) for alternate arrangements? >> >> 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 >> _______________________________________________ >> 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 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
