Emerson Process Management has been awarded a multi-million dollar order from State Nuclear Power Engineering Corporation (SNPEC) for critical Fisher control valves to be used in Westinghouse AP1000 pressurized water reactors at both the Sanmen 2 and Haiyang 2 nuclear power plants in China. The order includes valves for two applications at each plant: a start-up or bypass valve and the main feedwater valve. The bypass valve is a specially-designed six-inch valve with a seismically qualified actuator and special trim to ensure a smooth transition with the main regulation valve. The main feedwater valve is a 20- by 16-inch valve with specially characterized trim and actuation to ensure rapid but stable response. The actuators for both valves have been sized using EPRI guidelines to meet industry standards.
