Installation Instructions - Watts

957 OSYRP/IS-957/957 RPDA 957 OSYI nstallation, Maintenance, & RepairSeries 957, 957 RPDA, LF957 RPDAR educed pressure Zone AssembliesReduced pressure Detector AssembliesSizes: 21 2" 10" (65 250mm)NOTICEFor Australia and New Zealand: Pipeline strainers should be installed between the upstream shutoff valve and the inlet of the backflow 's important that this device be tested periodically in compli-ance with local codes, but at least once per year or more as service conditions warrant. If installed on a fire sprinkler system, all mechanical checks, such as alarm checks and backflow preventers, should be flow tested and inspected internally in ac-cordance with NFPA 13 and NFPA field testing procedure, refer to Watts Installation sheets IS-TK-DP/DL, IS-TK-9A, IS-TK-99E and IS-TK-99D found on other repair kits and service parts, refer to our backflow Pre-vention Products Repair Kits & Service Parts price list PL-RP-BPD found on technical assistance, contact your local Watts building or plumbing

Reduced Pressure Zone Assemblies Reduced Pressure Detector Assemblies Sizes: 21⁄2" – 10" (65 – 250mm) NOTICE For Australia and New Zealand: Pipeline strainers should be installed between the upstream shutoff valve and the inlet of the backflow preventer. It's important that this device be tested periodically in compli-

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  Pressure, Reduced, Watt, Backflow, Reduced pressure

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