We work with variety of materials at Copley Engineering. This large valve is made of high grade super duplex, 25% chromium and copper-free stainless steel. It provides excellent strength and ductility combined with high marine corrosion resistance. Machining the super duplex is much more difficult and as a very complex job, requires experience and precision. This valve is going to be used by our customer on mature platforms in the gruelling North Sea and other offshore environments.
February 14, 2016