You've got it! Working or continuous pressure is the rating of the components, not the maximum pressure to which they may be subjected. Just as a 125# screw flange will hold 400 Psi of water pressure, but not steam or oil. All things are relative.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of IPA Sent: Thursday, May 29, 2008 4:03 PM To: sprinklerforum Subject: 200 psi test for components rated 175 I've got this question posed to me: Backflow preventor is rated at 175 (as are most of the fire sprinkler components) yet we are required to do a 200 psi test. Is the keyword here "working pressure" of 175 psi or am I missing something? thx, _______________________________________________ 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)
