butt weld reducer wleded to a socket weld fitting
butt weld reducer wleded to a socket weld fitting
(OP)
Does anyone see a problem if a 2x1 B16.9 reducer is welded into a B16.11 socket welded fitting?
thanks
mark
thanks
mark
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butt weld reducer wleded to a socket weld fitting
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RE: butt weld reducer wleded to a socket weld fitting
Some people may think there would be a problem with sediment in the extra gap space inside the socket created because of the weld bevel on the butt-weld reducer.
But, if you have a commodity that has sediment problems then you would not be using socket-weld fittings.
RE: butt weld reducer wleded to a socket weld fitting
They do make swage nipples for this purpose, though they are a lot harder to get your hands on than BW reducers are. Locally the true article is seldom stocked, and required swage nipples are usually hogged from solid barstock- a tremendous waste if you ask me.
RE: butt weld reducer wleded to a socket weld fitting
I'm guess you're tight on space...?
RE: butt weld reducer wleded to a socket weld fitting
However, pennpiper is correct. Does not degrade the strength of the system.
RE: butt weld reducer wleded to a socket weld fitting
If the end inserted is the large end it seems like they'll be bridging a bigger gap at the root and you might have a smaller weld throat than you'd otherwise expect if you were defining weld size just by legs on the fillet.
RE: butt weld reducer wleded to a socket weld fitting
Please recall that B16.9 fitting is a butt-welding element by its definition. This standard provides a fixed position for the welding ends (with reference to either centerlines of the fitting or the overall dimensions).
Design and use of B16.9 fitting is permitted only according to its proof test (B16.9 2.2).
Since a proof test assembly (B16.9 9.2) is made by welding of pipe section to each end of the fitting, the meaning is that the only way to connect a B16.9 fitting is a butt weld.
Any operation involved in any section of the fitting other that of welding ends is prohibited and throws it into "Unlisted Component" acc. to its significant (ASME B31.1 / B31.3 / B31.8 / VIII-1 etc.)