A Fabricated expansion bellow refers to an expansion joint made by assembling individual components, usually manually welded or formed, rather than being produced through seamless forming or hydraulic forming methods.
This term can apply to metallic, non-metallic (fabric), or composite bellows, but it's most commonly used in the context of custom metal expansion bellows for industrial applications.
Built from multiple metal sheets, plates, or rings
Assembled and welded into a convolution profile
Used when standard bellows canït meet size, shape, or load requirements
Often custom-designed for special ducting or piping systems
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