There is an imported piece of equipment whose pipe connection ports have an outer diameter of 168.3; now, the pipes to be connected have an outer diameter of 159
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There is an imported piece of equipment whose pipe connections have an outer diameter of 168.3. The pipes that need to be connected now have an outer diameter of 159. Is there any transition fitting available? GB 12459-2005 Steel butt-welded seamless pipe fittings: Elbows are manufactured in accordance with standard 12459; one end has a diameter of 168.3, and the other end has a diameter of 159. Is it available on the market?
Use a thicker tube of 168 for machining
Maybe the European and American standards weren’t clearly identified during the technical clarification~~ There’s no excessive size difference; if the equipment can’t be modified, then replace the first flange at the connection point with an American standard one. It can be specially processed using a lathe, while the subsequent flanges should still use the European standard.
It’s hard to find in the market; manufacturers can produce it
This type of equal-diameter reducer is quite unusual. It can be custom-made for direct welding use – all that’s needed is to determine the wall thickness at both ends as well as the length. My contact information is available below
Have everyone encountered the same problem? If it is customized, will it meet the requirements perfectly?
Consider adding flanges; use HG/T20592-2009 – for the end with a size of 168.3, use the DN150 A series, and for the end with a size of 159, use the DN150 B series
Please specify the outer diameter X thickness of the device port, and the outer diameter X thickness of the pipe. . . I’ll draw a diagram for you. . . There’s no need for flanges at all
Contact the pipe fitting manufacturer directly for customization.
Once, the diameter of the flange on the equipment did not match that of the connecting pipes, so it was necessary to create a new flange; this flange used the same standard as those on the equipment, but its diameter was adjusted to match that of the pipes.