Westinghouse Electric Co. awarded Emerson Process Management more than $8 million to supply critical control valves for two AP1000 pressurized water reactors at SCANA Corp.’s Virgil C. Summer Nuclear Generating Station in Jenkinsville, SC.
With site preparation already under way, construction should begin late this year or early next year. The two new reactors come on line in 2016 and 2019, respectively.
These control valves are identical to those selected for the first four AP1000 nuclear power units under construction in China and two additional units in the Southeast United States.
Fisher air-operated control valves will serve as part of the safety-related system in the nuclear containment area. Engineered to comply with ASME Section III standards for components of nuclear facilities, they undergo rigorous qualification testing at the Emerson Innovation Center in Marshalltown, IA.
Valve actuators undergo sizing in accordance with EPRI (Electric Power Research Institute) guidelines to ensure adequate operating margins that meet industry standards. They should also survive vibration loads of six times gravity in three axes to confirm they can operate after a seismic event.