Suggest C-900 PVC pipe, CL 150 or 200. Ductile iron push-on or MJ fittings, with SS hardware that in turn is coated with non-oxide grease. ALL ferrous joints then enveloped with seamless polyethylene sleeves and heavily taped at each end. 75 years? Who knows, but we've had success with these practices with very hot soils in SoCal, in areas that were experiencing blowouts from corrosion.
Steve L. Sent from my Verizon Wireless BlackBerry -----Original Message----- From: �... .... <[EMAIL PROTECTED]> Date: Sat, 27 Sep 2008 02:21:20 To: <[email protected]> Subject: which pipe is right for underground bury in very hot soil? Underground Question: we have got soil that is alkaline hot. and hot temperatures too in a desert with too few days below 100 F. what we have is miles of underground to install around this campus.� and cost savings is not one of the issues. longevity of service is. would ductile iron protected with tar or PE wrapper be preferred to simply PVC? or is another pipe option, � a better bet on � reaching 75 years? service life desired:� 75 years diameter:���������������� 8 inch depth of bury���������� 3+ feet scot deal excelsior fire engineering _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum <http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum> For Technical Assistance, send an email to: [EMAIL PROTECTED] To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) � __________ Information from ESET NOD32 Antivirus, version of virus signature database 3475 (20080926)__________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com <http://www.eset.com> �
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