In my 1983 edition the requirement is listed and there is a bar next to the section indicating that it was either new or changed. But, there are other references to the check valve that don't indicate changes, so the requirement definitely predates 1983.
Paul J. Pinigis, P.E. Chief Life Safety Engineer -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Sean & Christine Conlin Sent: Thursday, May 31, 2007 9:44 AM To: [email protected] Subject: FDC check valves Good day to all! Does anyone know when NFPA 14 or other NFPA standard first initiated the requirement for a check valve in the fire department connection? Thanks for the help in advance. Sean _______________________________________________ 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) _______________________________________________ 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)
