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ASME B16.47(Large Diameter Steel Flanges) is a standard for large diameter steel flanges sized from NPS 26 through NPS 60. ASME B16.47 standard covers pipe flanges in sizes 26” through 60” and in pressure class ratings 75, 150, 300, 400, 600, and 900. Then, ASME B16.47 is further divided into ASME B16.47 Series A and…

When you’re looking for flanges, you’re going to want to ensure you’re getting the right ones. There are several different types of flanges, which can be categorized into standard and special types. We will just go over the standard types of flanges for now, since these are the most popular. Standard Types of Flanges These…