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® WorleyParsons <br /> resources&energy <br /> o Suction Pressure <br /> o Suction Temperature <br /> o Suction strainer differential pressure (transmitter plus local indication) <br /> o Low NPSH alarm <br /> o Vibration Detection <br /> 3.12.3 Condensate Pumps <br /> Condensate pumps will be multistage, vertical, open shaft, canned type pumps with the <br /> suction nozzle in the discharge head (T-type head). The condensate pump will be <br /> selected specifically for low NPSH service. Pump sizing will assume the available <br /> suction pressure at the pump suction nozzle centerline is zero. The condensate pump <br /> will be equipped with a suction strainer. Loss through the suction strainer will be <br /> accounted for in setting the height of the surface condenser relative to the pump suction <br /> nozzle centerline. Condensate pumps will be provided with minimum flow recirculation <br /> lines satisfying the pump manufacturer's minimum flow requirements and with <br /> consideration for the gland steam condenser and air ejector minimum flow requirements. <br /> The pumps will be suitable for parallel operation over their full performance curve. <br /> Wetted parts of the pump will be stainless steel. <br /> 3.12.4 Circulating Water Pumps <br /> The circulating water pumps will be single stage, vertical, open shaft pumps with single <br /> suction impeller design in accordance with HI Standards. Head vs. capacity curves will <br /> rise continuously toward shut off head without reversing slope. An auxiliary source of <br /> water will be provided for pump shaft bearing lubrication when pumps operate in <br /> conditions where line bearings may be dry on start up, or when quality of the pumped <br /> water may cause damage to bearings. All wear rings will be fully renewable <br /> Each pump will be provided with a motor operated discharge valve. <br /> Each motor will be provided with a reverse rotation lock device to ensure the motor and <br /> pump do not reverse-rotate and cause damage. All wetted components will be suitable <br /> for worst-case water quality. <br /> 3.12.5 Fire Water Pumps <br /> It is not expected that additional fire pumps will be required beyond what is already <br /> installed at the existing plant. However, if new pumps are deemed necessary, a <br /> modularized system containing one each FM (Factory Mutual) approved pump of the <br /> following types will be provided for the plant fire suppression system. Fire water pumps <br /> will be tested in accordance with NFPA requirements. <br /> • Electric Fire Water Pump <br /> Lodi Energy Center 3.3 - 16 LEC AFC <br /> 071508 Rev.A <br />