Selection of pipe flanges for non-ferrous metal pressure vessels
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For pressure vessels made of non-ferrous metals that are classified as extremely or highly hazardous, as well as low-pressure vessels, what type of flange should be used? Flanges are usually gasketed flanges; if a long-neck welded flange is used, it cannot be welded to the piping
Generally, the engineering pressure for flanges is not less than 2.0 MPa; necked butt-welded flanges are used, with full penetration required. Since non-ferrous metals cannot be welded to carbon steel. Then use non-ferrous metals for everything. However, the recommended materials for standard flanges do not include this non-ferrous metal; in that case, the person asking the question will need to carry out calculations for the flanges.