And testing requirements can easily exceed 200 PSI these days... -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thom McMahon Sent: Friday, May 30, 2008 6:24 PM To: [email protected] Subject: RE: 200 psi test for components rated 175
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) _______________________________________________ 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)
