2010 NFPA 13 allows the use of a "Pressure Relief valve in lieu of an expansion tank. (I guess the committee got tired of waiting for the price of those expensive expansion tanks to come down, and came up with an alternative.) But if you read 7.6.3.5 carefully all three conditions must be met. Pump, relief and make up.
Thom McMahon, SET Firetech, Inc. 2560 Copper Ridge Dr P.O. Box 882136 Steamboat Springs, CO 80488 Tel: 970-879-7952 Fax: 970-879-7926 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ron Greenman Sent: Tuesday, January 19, 2010 8:34 PM To: [email protected] Subject: Re: Antifreeze Backflow Prevention but require the expansion tank. eld) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.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)
