Resolutions-1997-021

D. Valves & Valve Boxes 1. Gate valves shall conform to AWWA C509. Use full size gate valves with epoxy or polymer lining. Use Mueller or an approved equal with 200 psi working pressure and gaskets rated at 250 psi. The waterway must be a full sized waterway. Valves shall be capable of being repacked or replacing O-rings under pressure. 2. Butterfly valves shall conform to AWWA C504. Use Pratt, M&H or Mueller valves, or an approved equal. 3. Valves shall open left and be furnished with a 2" square operating nut. Use Cor-Ten steel. 4. Valve Boxes shall be 2-piece slip type Tyler Series 6655 Item 668A, or approved equal range 63 inches to 83 inches. Use lids marked "water". 5. Tapping valves shall be 175 psi minimum working pressure, mechanical joint manufactured by Mueller or Clow. 6. Valve boxes shall be installed flush with the final grade or as indicated by the engineer. Use valve box ADAPTOR II, Manufactured by Adaptor Inc.; or approved equal for all valve box installations. E. Hydrants <table> <tr> <th>Specification standard:</th> <td>AWWA Standard C502</td> </tr> <tr> <th>Acceptable manufacturers And model:</th> <td>Waterous Trend Traffic (WB77) or approved equal</td> </tr> <tr> <th>Type of shutoff:</th> <td>Compression</td> </tr> <tr> <th>Type of construction:</th> <td>Break flange or break bolt</td> </tr> <tr> <th>Main valve opening:</th> <td>5 ¼ inch minimum</td> </tr> <tr> <th>Nozzle arrangement and size:</th> <td>3 nozzle<br>Two 2 ½ inch hose nozzles and one 5-inch integrated Storz hose coupling pumper nozzle. The 5-inch Storz hose pumper nozzle is to face the street, or at an intersection, face the higher classification street.</td> </tr> <tr> <th>Nozzle thread:</th> <td>National Standard Hose Threads</td> </tr> <tr> <th>Type of inlet connection:</th> <td>Mechanical Joint</td> </tr> <tr> <th>Size of inlet connection:</th> <td>6-inch</td> </tr> </table>