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Recent content by melkov

  1. melkov

    Standards for butterfly valves

    Could somebody to sum-up standards applicable for butterfly valves (design, face-to-face, testing,etc..)? Is there any comparison between American and DIN standards? Hope for help. Thank you a lot.
  2. melkov

    Eccentricity understanding

    Yes, but I mean some picture or image in motion
  3. melkov

    Eccentricity understanding

    I want to understand how eccentric (offset) butterfly valves work. Is there any 3D hint?

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