Vessel dished end

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Drawing of a vessel dished end
Manufacturing of a vessel dished end

A vessel dished end is a concave end of a vessel.

Principle[edit]

Vessel dished ends are mostly used in storage or pressure vessels in industry. These ends, which in upright vessels are the bottom and the top, use less space than a hemisphere (which is the ideal form for pressure containments) while requiring only a slightly thicker wall.

Manufacturing[edit]

The manufacturing of such an end is easier than that of a hemisphere. The starting material is first pressed to a radius r1 and then curled at the edge creating the second radius r2. Vessel dished ends can also be welded together from smaller pieces.