Answer
Mar 16, 2026 - 12:21 PM
This part complies with ISO-KF standards and can only be used with KF-16 vacuum flanges.
"The KF flange size name is based on the nominal I.D. tube, in millimeters, to which it can be
welded. Standard sizes are KF10, KF16, KF25, KF40, and KF50."
(page 13 of source document)
