Might be worth a call to the manufacturer. Matt Grisé PE*, LEED AP, NICET II Vice President – New Construction Alliance Fire Protection 130 w 9th Ave. North Kansas City, MO 64116
*Licensed in KS & MO 913.888.0647 ph 913.888.0618 f 913.526.7443 cell www. AFPsprink.com From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, January 11, 2017 7:57 AM To: [email protected] Subject: RE: Static pressure after backflow preventer Seems logical for a RPZ type backflow preventer. J. Scott Mitchell, PE Senior Fire Protection Engineer Mission Engineering CNS Y-12 | 865-576-5258 CNS PTX | 806-477-5883 From: Sprinklerforum [mailto:[email protected]] On Behalf Of Dewayne Martinez Sent: Wednesday, January 11, 2017 8:40 AM To: [email protected]<mailto:[email protected]> Subject: Static pressure after backflow preventer Is there really a pressure loss at 0gpm flow for backflow preventers like the curves show? I am trying to figure out my static pressure on a floor level with a fire pump at churn and it needs to be accurate. Thanks, Dewayne Martinez Fire Protection Design Manager TOTAL Mechanical Building Integrity W234 N2830 Paul Rd. Pewaukee, WI 53072 [email protected]<mailto:[email protected]> Ph: 262-522-7110 Cell: 414-406-5208 http://www.total-mechanical.com/ [cid:[email protected]] [cid:[email protected]] [cid:[email protected]] [cid:[email protected]] TOTAL Mechanical voted “Top Workplace” for a 4th consecutive year.
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