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A small flag saying the weld is made on site.
Also known as: Site weld symbol, Erection weld marking
A flag at the elbow of a welding symbol means the weld is made at the erection site rather than in the shop. It is a scheduling and access instruction as much as a fabrication one, since site welding is harder to inspect and to control.
Marks a weld to be made at the site of erection rather than in the fabrication shop.
Contexts: Technical drawing
Carries practical consequences beyond location: site welds are made in less controlled conditions and are inspected differently.
Contexts: Technical drawing
A small triangular flag on a short staff rising from the bend of the reference line.