Flowserve Corp. has announced three orders totaling more than USD 10 million from China Nuclear Power Engineering Co. Ltd for nuclear main steam isolation valves (MSIVs). The valves are intended to be used at three facilities in China: Yangjiang Units 3 and 4, Fangchenggang Units 1 and 2, and Ningde Units 3 and 4. The type CPR1000 units are scheduled to begin commercial operation between 2014 and 2016, each with a capacity of 1000MW. Flowserve MSIVs are specially designed, large gate valves with fast-acting, stored energy actuators. MSIVs are designed to be installed in a plant’s nuclear steam supply system where their primary function is to close within 3 to 5 seconds in the unlikely event of a rupture in the steam piping. The valves will be manufactured at the Flowserve facility in Raleigh, North Carolina, and are scheduled to be delivered in 2011 and 2012.