How is it that you have the test meter hooked up to city water?
Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: George Medina Jr [mailto:[email protected]] Sent: Wednesday, March 18, 2009 2:04 PM To: [email protected] Subject: Check Valve On Discharge side of Flow Meter NFPA No.:Z4Pump02 page 108 - States that a check valve is required on the discharge side of flow meter. Our union field guys state they never put one on?there. Is this correct? I believe a flow meter would be damaged from positive city pressure back flowing through the meter after shutting down the pump and before closing the isolation valve. Somebody correct me for being wrong. George Medina Jr. Sr. Fire Sprinkler Designer Dorvin D. Leis Inc. Honolulu, HI 96819 _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
