Seeking advice on ANSI flanges for valves, DN6
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I would like to ask which standard should be referenced for American standard flanges DN6? I’ve been looking for it for a long time...
This post was last edited by WuduBuZhangfu on 2019-1-5 at 11:05. I didn’t see any images in the attachments, nor were there sufficient other parameters, such as product type, structure, operating pressure, etc. For flanged connections of this small diameter, JB/T 2769 can be referred to in high-pressure chemical processing applications, while JB/T 8473 is applicable in instrumentation applications. The American standard uses NPS1/2 per ASME B16.5, with the channels being machined as required. For reference