NFPA 25 - 2002 Edition. The way I read 12.1 and Table 12.1 applies to all valves, valve components and trim. So yes check valves in the trim would need to be internally checked every 5 years.
David Autry Plans Examiner Nebraska State Fire Marshal's Office 246 S. 14th Street Lincoln, NE 68508 402-471-9659 402-471-3118 fax www.sfm.ne.gov ** Note new email address: [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of MOWLE Kevin(K) - BRUCE POWER Sent: Wednesday, August 27, 2008 10:36 AM To: [email protected] Subject: NFPA 25 section 13.4 System Valves I have an inquiry re" NFPA 25 section 13.4 for "System Valves". The paragraph for check valves, 13.4.2.2 specifies a 5 year internal inspection. Unfortunately NFPA 25 section 3.5 does not include a definition of "system valve" so this can lead to some interpretation problems. As per NFPA 14, 6.4.2 a check valve is installed at the Fire department connections which is tied directly to the main system header. As per 6.4.1 there is no isolation valve. In one example here the fire dept. connection is tied directly to the main header so there is no means to access this check valve short of a firewater system shutdown. What about the small check valves on sprinkler, deluge and foam system trim? Are these considered "system valves"? Are Class I and class III standpipe check valves considered "system valves"? thanks Kevin Mowle Bruce Power Ontario, Canada ************************************************************************************************** *** The contents of this email and any attachments *** are confidential and may be privileged. *** They are intended for the named recipient(s) only. *** If this message has been delivered to you in error, please reply to the *** sender to that effect, don?t forward the message to anyone *** and delete the message from your computer. *** Thanks for your help, and sorry for the inconvenience. (BP) ************************************************************************************************** _______________________________________________ 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)
