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® WorleyParsons <br /> resources&energy <br /> • Diesel Fire Water Pump <br /> • Jockey Fire Water Pump <br /> 3.12.6 Positive Displacement Pumps <br /> Rotary positive displacement pumps will be either gear or screw type. All rotary <br /> positive displacement pumps will be provided with an exterior relief valve to protect the <br /> pump and piping upstream from an inadvertently isolated discharge valve. <br /> 3.13 Storage Tanks <br /> Large outdoor storage tanks will be freeze protected as required through the use of <br /> insulation and heaters and nozzle insulation and heat tracing. <br /> Overflow connections and drop downs to grade lines will be provided. Maintenance <br /> drain connections will be provided for complete tank drainage. <br /> Manholes, where provided, will be at least 24 inches in diameter and hinged to facilitate <br /> removal. Storage tanks will have ladders and cleanout doors as required to facilitate <br /> access/maintenance. Provisions will be included for proper tank ventilation during <br /> internal maintenance. Ladders and platforms will be galvanized and designed in <br /> accordance with API and OSHA standards. <br /> Local level indication will be provided with level transmitters for monitoring in the <br /> control room and a float system for local monitoring. <br /> Bolted tanks will utilize encapsulated nuts for interior bottom seams and polycapped <br /> bolts in sidewalls and deck vapor areas. <br /> Tanks will be designed using the following criteria: <br /> Tank Quantity Description Size in Gallons(see <br /> note) <br /> Fire/Raw Water Carbon Steel Bolted Fab&Erect <br /> Storage 1 AWWA D103-97/NFPA 22 with factory TBD <br /> applied exterior and interior coating <br /> Demineralized Water Carbon Steel Bolted Fab&Erect <br /> Storage 1 AWWA D103-97 with factory applied 200,000 <br /> exterior and interior coating <br /> Water Wash Drain 1 Horizontal,Cylindrical Double Wall 5 000 <br /> Tank Tank,Fiberglass ' <br /> Horizontal,Cylindrical Double Wall 500 <br /> Gas Turbine 1 Tank,Fiberglass,Integral with Water To be integral with <br /> Drains Tank Wash Drain Tank water wash drain <br /> tank(divided) <br /> Lodi Energy Center 3.3 - 17 LEC AFC <br /> 071508 Rev.A <br />