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SAMSON OCEANFRONT PARK <br />CITY OF SUNNY ISLES <br />TECHNICAL SPECIFICATIONS <br />DOMESTIC WATER PIPING SPECIALTIES 15145-2 <br /> <br /> <br /> <br />1. Standard: ASSE 1001. <br />2. Size: NPS 1/4 to NPS 3 <br />3. Body: Bronze. <br />, as required to match connected piping. <br />4. Inlet and Outlet Connections: Threaded. <br />5. Finish: Rough bronze <br />B. Hose-Connection Vacuum Breakers: <br />1. Standard: ASSE 1011. <br />2. Body: Bronze, nonremovable, with manual drain. <br />3. Outlet Connection: Garden-hose threaded complying with ASME B1.20.7. <br />4. Finish: Chrome or nickel plated <br />2.04 <br />A. Intermediate Atmospheric-Vent Backflow Preventers <br />BACKFLOW PREVENTERS: <br />1. Standard: ASSE 1012. <br />2. Operation: Continuous-pressure applications. <br />3. Size: NPS ½ or <br />4. Body: Bronze. <br />NPS 3/4 <br />5. End Connections: Union, solder joint. <br />6. Finish: Chrome plated <br />B. Reduced-Pressure-Principle Backflow Preventers: <br />1. Standard: ASSE 1013. <br />2. Operation: Continuous-pressure applications. <br />3. Pressure Loss: 12 psig <br />4. Body: Bronze for <br /> maximum, through middle third of flow range. <br />NPS 2 and smaller; cast iron with interior lining that complies with <br />AWWA C550 or that is FDA approved or steel with interior lining that complies with <br />AWWA C550 or that is FDA approved stainless steel for NPS 2-1/2 <br />5. End Connections: Threaded for <br /> and larger. <br />NPS 2 and smaller; flanged for NPS 2-1/2 <br />6. Configuration: Designed for horizontal, straight-through flow. <br /> and larger. <br />7. Accessories: <br />a. Valves NPS 2 <br />b. Valves <br /> and Smaller: Ball type with threaded ends on inlet and outlet. <br />NPS 2-1/2 <br />c. Air-Gap Fitting: ASME A112.1.2, matching backflow-preventer connection. <br /> and Larger: Outside-screw and yoke-gate type with flanged ends on inlet <br />and outlet. <br />C. Double-Check, Backflow-Prevention Assemblies <br />1. Standard: ASSE 1015. <br />2. Operation: Continuous-pressure applications unless otherwise indicated. <br />3. Pressure Loss: 5 psig <br />4. Body: Bronze for <br /> maximum, through middle third of flow range. <br />NPS 2 and smaller; cast iron with interior lining that complies with <br />AWWA C550 or that is FDA approved or steel with interior lining that complies with <br />AWWA C550 or that is FDA approved stainless steel for NPS 2-1/2 <br />5. End Connections: Threaded for <br /> and larger. <br />NPS 2 and smaller; flanged for NPS 2-1/2 <br />6. Configuration: Designed for horizontal, straight-through flow. <br /> and larger. <br />7. Accessories: <br />a. ValvesNPS 2 and Smaller: Ball type with threaded ends on inlet and outlet.