Same year? Gotta be an old fitter rule. Same K-factor and style, response, etc. is generally the rule. Year wouldn't really matter, performance does.
Craig L. Prahl, CET Fire Protection Specialist 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.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jay Jay Blocker Sent: Tuesday, July 07, 2009 11:59 PM To: [email protected] Subject: Heads As far back as the days of apprenticeship I have been told that if you pull a head out to replace the pipe you only install heads made in the same year as the work. But I can not seem to remember where it was written. Is this true or is it just one of those trade rules? JB _______________________________________________ Sprinklerforum mailing list 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) _______________________________________________ Sprinklerforum mailing list 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)
