“Built-Up” Nozzles
Nozzles for pressure vessels can also be fabricated from standard size pipe and ANSI piping flanges, or from rolled-and-welded plate with plate flanges, as shown in Figure 600-5. These types of nozzles are satisfactory for shell components less than 2-inches thick and when maximum design temperatures are below 650°F. They are usually less expensive to fabricate than integrally forged nozzles.
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