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SAMSON OCEANFRONT PARK <br />CITY OF SUNNY ISLES <br />TECHNICAL SPECIFICATIONS <br />DOMESTIC WATER PIPING SPECIALTIES 15145-6 <br /> <br /> <br /> <br />1. Standard: MSS SP-110 for standard-port, two-piece ball valves. <br />2. Pressure Rating: 400-psig <br />3. Size: <br /> minimum CWP. <br />NPS ¾ <br />4. Body: Copper alloy. <br />. <br />5. Ball: Chrome-plated brass. <br />6. Seats and Seals: Replaceable. <br />7. Handle: Vinyl -covered steel. <br />8. Inlet: Threaded or solder joint. <br />9. Outlet: Threaded, short nipple with garden-hose thread complying with ASME B1.20.7 and cap <br />with brass chain. <br />2.12 <br />A. Water-Hammer Arresters: <br />WATER-HAMMER ARRESTERS: <br />1. Standard: ASSE 1010 or PDI-WH 201. <br />2. Type: Metal bellows or Copper tube with piston <br />3. Size: ASSE 1010, Sizes AA and A through F, or PDI-WH 201, Sizes A through F. <br />2.13 <br />A. Supply-Type, Trap-Seal Primer Device: <br />TRAP-SEAL PRIMER DEVICE: <br />1. Standard: ASSE 1018. <br />2. Pressure Rating: 125 psig <br />3. Body: Bronze. <br /> minimum. <br />4. Inlet and Outlet Connections: NPS 1/2 <br />5. Gravity Drain Outlet Connection: <br /> threaded, union, or solder joint. <br />NPS 1/2 <br />6. Finish: Chrome plated, or rough bronze for units used with pipe or tube that is not chrome <br />finished. <br /> threaded or solder joint. <br />B. Drainage-Type, Trap-Seal Primer Device: <br />1. Standard: ASSE 1044, lavatory P-trap with NPS 3/8 <br />2. Size: <br /> minimum, trap makeup connection. <br />NPS 1-1/4 <br />3. Material: Chrome-plated, cast brass. <br /> minimum. <br />PART 3 - EXECUTION <br />3.01 <br />A. Install backflow preventers in each water supply to mechanical equipment and systems and to other <br />equipment and water systems that may be sources of contamination. Comply with authorities having <br />jurisdiction. <br />INSTALLATION: <br />1. Locate backflow preventers in same room as connected equipment or system. <br />2. Install drain for backflow preventers with atmospheric-vent drain connection with air-gap fitting, <br />fixed air-gap fitting, or equivalent positive pipe separation of at least two pipe diameters in drain <br />piping and pipe-to-floor drain. Locate air-gap device attached to or under backflow preventer. <br />Simple air breaks are unacceptable for this application. <br />3. Do not install bypass piping around backflow preventers. <br />B. Install water regulators with inlet and outlet shutoff valves. Install pressure gages on inlet and outlet.