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A tall rectangle with domed ends, drawn upright.
Also known as: Vertical vessel symbol, Upright pressure vessel
On a process diagram a vertical pressure vessel is drawn as a tall rectangle closed by curved ends, representing a vessel designed to hold contents above atmospheric pressure.
Denotes a vessel designed for internal pressure, drawn upright with curved closures at both ends.
Contexts: Technical drawing
Uses curved ends deliberately: a flat-ended outline denotes an atmospheric tank, and the difference is the whole of the distinction on the drawing.
Contexts: Technical drawing
A tall narrow rectangle standing upright, closed at top and bottom by outward curves rather than flat lines.