NUCLEAR POWER Fisher TM FIELDVUE TM DVC6200 Instruments Monitor Critical Control Valves and Reduce Downtime for Vogtle Nuclear Units RESULTS • Reduced process cycling and unit swings from 3% to 0.25% • Decreased maintenance issues with feedwater regulator valves to zero • Replaced analog with digital instruments and increased uptime by three days per year per unit APPLICATION Feedwater regulator, feedwater bypass, and temperature control valves CUSTOMER Vogtle Units 1 and 2 in Waynesboro, Georgia, USA CHALLENGE Vogtle 1 and 2 are twin units using pressurized water reactors (PWRs) to produce 2400 megawatts of power. Vibration and temperature caused problems for the positioners on the feedwater regulator and bypass valves, whose performance is critical to the process. The valves a

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