Cooling System Check Valve Replacement

INTRODUCTION Battelle Energy Alliance, LLC (BEA) Management and Operating Contractor of the U.S. Department of Energy (DOE) owned Idaho National Laboratory (INL), is seeking an Expression of Interest (EOI) from qualified vendors capable of providing tilting-disc style, 20-inch, 300-lb check valves for use at the Advanced Test Reactor (ATR). These valves are critical safety-related components used on the discharge side of high-capacity pumps and support safe operation of ATR. BACKGROUND INL is a U.S. Department of Energy (DOE) national laboratory dedicated to nuclear energy, national security, and clean energy innovation. The existing ATR check valves are original components with aging hydraulic dashpot systems. They have undergone numerous repairs, lack available spare parts, and are experiencing increased failure rates, warranting full replacement to maintain reliable reactor operation. The new valves must meet stringent design, operational, environmental, and safety requirements def…

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