Connection of plate-type butt-welded steel pipe flanges to elbows
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This post was last edited by Clouds of flowing water shine on 2019-5-7 at 20:42. It is said that plate-type butt-welded steel pipe flanges cannot be connected directly to elbows or other components of the same diameter, but I saw one such connection in practice. Moreover, the flange uses HG20593-97. Pictures speak louder than words. .
There are various ways to weld it; as long as you have an idea
Is that so? It’s the same here as well
To reduce the workload and improve efficiency, any kind of selection method might come into play. Special attention should be paid to the spatial position of the fasteners in this case.
The inner curvature of the elbow affects bolt installation.
We often encounter situations like this: for example, with elbow fittings made of wear-resistant ceramic linings, customers request flanges to be welded on both sides, and the outer diameters available are 219, 273, and 325. The advantage of this approach is that the flange is welded first, followed by the application of a ceramic layer, which reduces the exposure of the joints and increases the service life of the wear-resistant layer. In short, there is nothing that cannot be done; it’s only a matter of not thinking of it. Of course, various factors must be taken into consideration before it can be put into practice. :lol:lol
If it’s not possible, then it’s not possible; what’s wrong can’t be done just because it’s said to be okay
Doing it on-site does not mean that it complies with the standards
A short pipe should be added or a flange with a neck should be used
This method of connection does not meet the specified requirements. It is recommended to weld a straight section of pipe first and then weld the elbow, as the length of the straight edges of the elbow makes it difficult to ensure the required welding dimensions, and welding it is also not easy.