Flowserve Ships Main Steam Isolation Valve for Westinghouse AP1000® Nuclear Power Plant in China

DALLAS, May 9, 2012 - Main steam isolation valves will be installed in the first Westinghouse nuclear power plant in China.

DALLAS, May 9, 2012 – Flowserve Corporation (NYSE: FLS), a leading provider of flow control products and services for global infrastructure markets, announced it has shipped the first of several main steam isolation valves (MSIVs) to the Sanmen Nuclear Power Plant, located in the Zhejiang Province of China. The MSIVs will be installed in Unit 1 of the plant, the first Westinghouse AP1000® nuclear power plant ever built.  The shipment relates to several multi-million dollar valve orders for the China nuclear market that Flowserve has booked since early 2010.

The massive MSIV, the largest of its kind produced by Flowserve, utilizes a Flowserve Edward gas/hydraulic actuator. As part of the secondary system of the pressurized water reactor (PWR), the MSIV isolates the main steam line between the steam generator and the turbine. The total assembly of the valve and actuator together stands more than 6.1 m (20 ft.) tall and weighs more than 25,900 kg (57,000 lbs.). The MSIV is designed to close within 3 to 5 seconds, which can be critical in the event that plant operations need to be shut down quickly.

The AP1000, the Westinghouse advanced passive pressurized water reactor, incorporates a new and innovative design that requires 50 percent fewer safety-related valves, 80 percent less safety-related piping and 85 percent less control cable. This design also utilizes gravity in lieu of mechanical equipment to provide emergency cooling water flow.

“The global nuclear power industry requires excellence in performance, safety standards, aftermarket experience and capabilities,” said Arnold Wallace, president, Flow Control Operations. “After earning the opportunity to work with Westinghouse, Flowserve is proud to provide MSIVs for their new AP1000 nuclear power plant.”

About Westinghouse Electric Co.: Westinghouse Electric Company, a group company of Toshiba Corporation (TKY: 6502), is the world's pioneering nuclear energy company and is a leading supplier of nuclear plant products and technologies to utilities throughout the world. Westinghouse supplied the world's first pressurized water reactor in 1957 in Shippingport, Pa. Today, Westinghouse technology is the basis for approximately one-half of the world's operating nuclear plants, including 60 percent of those in the United States.

About Flowserve

Flowserve Corp. is one of the world's leading providers of fluid motion and control products and services. Operating in more than 55 countries, the company produces engineered and industrial pumps, seals and valves as well as a range of related flow management services. More information about Flowserve can be obtained by visiting the company's website at www.flowserve.com.

Technical Contact: Mike Mullin, Director Investor Relations (972) 443-6636

Media Contact: Steve Boone, director, global communications and public affairs, (972) 443-6644

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