U-DEC Reactor tanks and Nuclear Plants The traditional procedure to access the reactor core during refueling is to first drain the reactor pool and then manually decontaminate the surface. This procedure is both time consuming and it generates unnecessary dose to personnel. Therefore, Westinghouse developed the underwater decontamination robot, U-DEC. Pool decontamination with U-DEC is time- and costefficient and an effective way towards meeting the as low as reasonably achievable (ALARA) objective. Description The Westinghouse U-DEC is engineered for the nuclear industry and designed for all types of steel-lined pools in boiling water reactors (BWR), pressurized water reactors (PWR), and vodovodyanoi energetichesky reactory (VVER). U-DEC allows the plant operator to decontaminate the reactor pool, walls, and floor surface before draining it. This saves both time and dose to personnel. It has two different floatation bodies (walls and floor), which are quick and easy to shift. It also has two individually driven decontaminating rollers, which enable easy cleaning of the surfaces. The integrated suction pump evacuates water together with loosened particles. U-DEC may be operated in a recirculation mode or by connecting the effluent hose to the plant’s own filtration system. With the Westinghouse U-DEC, a reactor pool can be decontaminated in approximately one day, by only one operator, and remove approximately 95 percent of surface contamination. U-DEC has been successfully delivered and used in nuclear power plants in both Europe and the U.S. Web: www.wedarobotics.com mail: [email protected] MADE IN SWED

WEDAExperience U-DEC has been successfully delivered and used in nuclear power plants in both Europe and the U.S. Cleaning unit Control box Technical data CONTACT Wedavagen 4A, 152 42, Sodertalje Web: www.wedarobotics.com mail: [email protected] MADE IN SWEDEN