I'd worked for a firm in the 80's that used DI for large diameter piping around fire pumps where we field cut spool pieces with a chop saw, added uni-flanges, and rodded the whole thing together.
Much easier field installation, and coated pipe on the suction side. Other than short stubs, however, I'd try to avoid running DI inside like the plague. I've seen it done, LHU was one instance in PA, and it wasn't pretty. If it's your best option, go do it. glc -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Greg McGahan Sent: Friday, November 30, 2007 9:15 AM To: [email protected] Subject: RE: A Pipe's Life DI is commonly seen hanging under bridges and overpasses for domestic water. Greg Living Water Fire Protection, LLC 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 Fax: 850-937-1852 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Friday, November 30, 2007 7:20 AM To: [email protected] Subject: RE: A Pipe's Life Typically black carbon steel is used for the foam-water systems but galv. can be used. Most foam mfgr. data will state not to used galvanized piping only where it would be in direct contact with the undiluted foam concentrate. CLDI is typical for UG, have never heard of anyone trying to use it above ground. Better check it's listing before proceeding down that road. As far as life span, might try calling various pipe mfgrs. and see if they have any data concerning life cycle based on various installation conditions. Craig L. Prahl, CET Fire Protection Group Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [EMAIL PROTECTED] http://www.lg.com ) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
