Thinking about it, if you remove the check valve water will put pressure to the FDC connection which will constantly leak water and freeze in winter. Are you asking about dry standpipes? The check valve was needed on all sprinkler systems since the early 1900's.
Art ATCO Fire Porotec -----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)
