As operating pressures and temperatures of supercritical power plants increase, they place greater demands on flow control equipment. The Edward Equiwedge gate valve from Flowserve is engineered to deliver outstanding sealing performance, flow efficiency and reliability under the challenging operating conditions found in these critical applications.
Designed per ASME B16.34 and functionally qualified to ASME QME-1, the Edward Equiwedge gate valve, fitted with the Edward gas/hydraulic actuator, is the market leader for main-steam and main-feedwater isolation systems. Since 1985, it has been used in more than 80% of the world’s MSIV and MFIV applications.
The key to the Equiwedge valve’s exceptional sealing ability is its hybrid design. It incorporates the best elements of parallel-slide and flexible-wedge gate valves to minimize leakage across the seats. The resulting two-piece assembly allows each wedge — or gate — to flex independently to accommodate distortion loads. A hard-faced body guiding system ensures easy actuation. Thermal binding, wear, and stresses are minimized without any loss in sealing performance. The upsides are improved process integrity, increased equipment longevity, and reduced maintenance costs.
The Equiwedge valve also delivers excellent flow efficiency. An optimized flow path maximizes Cv with minimal pressure drop. Reliability is ensured by a proven pressure-seal bonnet design that minimizes leakage, and a strong captured stem that eases actuation.
With the Edward Equiwedge gate valve, you get exceptional sealing performance, flow efficiency and reliability. Contact your local Flowserve representative for more information.
