What is the smallest flange size?
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This post was last edited by WQC on 2010-9-11 22:47. Hello everyone: What is the smallest standard flange size? Metric and imperial, thank you!
According to iHG20592-20635, national standard (European standard) for steel pipe flanges, gaskets, and fasteners: DN10, outer diameter, Series A, 17.2mm ； Series B, 14mm. American standard specification: 1/2 (in) DN15, outer diameter, Series A, 21.3mm.
As mentioned above, these are the minimum flange specifications for national standards (European standards) and American standards.
Reply to 2# *aoxs668: May I ask again, if such a flange is connected to the corresponding pipe, what diameter should the pipe have, in terms of φXX? Thank you! Conditions: Temperature: room temperature; Pressure: 2.8 MPaG; Material: 316L
Pipes are divided into two main categories: national standards (European standards) and American standards. This applies to both pipes and pipe fittings, so be sure not to use them interchangeably when making your choices. There are national standards and their corresponding variants, as well as American standards and their corresponding variants. It is also necessary to take into account the wall thickness; the outer diameter offers many options. All you need to do is determine which standard you are using, and then choose flanges and steel pipes of the same standard – in that case, their outer diameters will be identical. . .
Pipes are divided into two main categories: national standards (European standards) and American standards. This applies to both pipes and pipe fittings, so be sure not to use them interchangeably when making your choices. There are national standards and their corresponding variants, as well as American standards and their corresponding variants. It is also necessary to take into account the wall thickness; the outer diameter offers many options. All you need to do is determine which standard you are using, and then choose flanges and steel pipes of the same standard – in that case, their outer diameters will be identical. . .
The 14x2.5 B series can be used; it still depends on the medium