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- The backflow preventer can be used in all plumbing systems where there is danger of the potable water supply system being contaminated. It prevents an accidental reduction in the pressure in the distribution system from causing backflow from contaminated water in user installations. The 574 comes complete with discharge air gap, all test ports are on top for easy access in spite of how the valve is mounted, union body connections make service and repair simple and fast, and a simple short list of parts is all that is required to do a rebuild.
574064A FlowShield™ 1/2" Reduced Pressure Zone Backflow Preventer Assembly, Press, 150 PSI, DZR Brass
- Listed by ASSE to Standard 1013 and is ICC-ES certified to CSA B64.4, AWWA C511, NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372 low lead laws.
- Meets codes IPC, IRC, NPC and UPC for use in accordance with the US and Canadian plumbing codes.
- Backflow TypeReduced Pressure ZoneBody MaterialDZR BrassEnd StylePRESSFlow Rate5 to 15 gpmNominal Size1/2 inSub-brandFlowShieldBall Material304 Stainless SteelBall Valve/ Gate Valve TypeIsolation Ball ValveConnection TypeAssemblyDimensions12-3/8 in L x 6-1/4 in HGland Nut MaterialBronzeHandle MaterialSteelManufacturerCaleffiManufacturer #574064AMediaWaterPort TypeTestPressure Rating150 psiSeries574Softgoods MaterialEPDM, PTFESprings materialStainless SteelTemperature Rating150 deg FTrim MaterialBrass StemTypeTestable