Butt weld fittings: pipe cap
Basically a pipe cap will be applied, to shut down the end of a pipe. The pipe cap, as it is shown in the image below, is available for all pipe dimensions, and is sometimes also used for other purposes.
The large variations of pipe caps, are the so-called ellipsoidal or dished heads. There are used to close pipes of large diameters, and are similar to those used for constructing vessels.
Often you can see on a vessel drawing the name “Klöpperboden” according to ASME F & D, and it is a German name for a special pipe cap head. F & D stands as an abbreviation for flanged and dished, and this form is also known as torispherical head defined.
“Korbbogenboden”, is also an german indication that you can find on a vessel drawing. This head is similar to the ellipsoidal head.
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