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Many different materials can be used in the design of a butterfly valve.
A typical butterfly valve will use several different materials within its construction to achieve the best combination of functionality and cost.
An ever-increasing number of stainless steels are available, of which the simple iron-chromium-nickel grades are most often termed ‘stainless steel’.Nickel aluminium bronze is a copper-based alloy containing approximately 10% aluminium, 5% nickel and 5% iron.
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