The forged Equiwedge valve with hybrid design by Flowserve/Edward valves

The forged Equiwedge valve by Flowserve

The forged Equiwedge valve by Flowserve

The new forged Equiwedge gate valve is the solution by Flowserve and Edward valves for handling difficult operating conditions with increased temperatures and pressures that are found in modern supercritical and ultra-supercritical coal and Combined Cycle Power plants, as well as other critical service applications.
It delivers superior sealing performance by utilizing the best design elements of the parallel slide gate valve and the flexible wedge gate valve, ensuring minimized leakage across the seats, this increases process integrity and improves plant efficiency by reducing loss of steam that can affect productivity and
profit. The design provides greater flexibility of the valve internals, reduces thermal binding and wear/stress on valve components for lower maintenance costs and improved equipment life span. In addition, the new Equiwedge combines the inherent strength of forged material with a single-piece body design that eliminates fabrication welds. This reduces the risk of body failure due to poor welding practices and improves equipment reliability for preventing accidents and protecting the safety and health of employees, customers, the public and the environment. Crucially, it marries the design criteria and allowable stress levels of EN 12516-2 with the ASME B16.34 design standard to selectively increase valve wall thicknesses in critical areas. This results in a valve that provides strength where it is needed most, while optimizing weight. Weight reduction is important as it reduces the level – and therefore cost – of pipe supports.