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· The nominal diameter of the flange is denoted by DN
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The nominal diameter of the flange is denoted by DN
Source :本站   Time:7/12/2017 9:50:53 PM   hit:

  The nominal diameter of the flange is denoted by DN, which is the common caliber of various steel pipe and steel pipe fittings. The same nominal diameter of the steel pipe and pipe fittings are not necessarily connected with each other, not necessarily interchangeable, ANSI B16.5 Class 300 317 Forged Blind Flanges nominal diameter is not a practical sense of the outer diameter or inner diameter, the value is close to the inner diameter.

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