The thickness of the gasket between flanges of different pipe diameters and the spacing between welds are different. What standard should be checked for this? Please give advice from experienced people
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The thickness of the gasket between flanges of different pipe diameters and the spacing between welds are different. What standard should be checked for this?
The thickness of the gasket between flanges of different pipe diameters can be found in the corresponding flange standards. For general pipe flanges, you can check the gaskets in the HG20592-1997 standard. Other flange standards also have corresponding flange gasket content. I don't know what "the distance between the welds and the distance between the welds are different" at the end means?
What I mean by that is, the weld also has a width, what is the width of the weld?
It also depends on what kind of standard you use, whether it is national standard, chemical industry or other, and then you can find the corresponding standard number.
The width of the weld is generally the width of the upper groove plus about 4mm. Of course, the specific work must be based on different acceptance specifications, but generally it can be determined this way. As for the thickness of the gasket, it depends on the flange specification.