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Welding Flange – Steel

INFICON ISO-K quality fittings are manufactured according to ISO 1609, DIN 28404 and Pneurop 6606. Our quality large diameter fittings are the standard vacuum components for all vacuum and high vacuum lines. The high quality INFICON fittings are designed and tested for leak rates less than 1 x 10E-9 mbar l/s.


  • Competitively priced
  • World wide logistics
  • Design and measures follow strictly international respected standards
  • Surface finish, welds, material specifications and cleanliness meet or exceed high vacuum specifications
  • 2011/65/EU RoHS compliant

Part Number

Ordering Information Art.No.
Welding flange, steel, DN 63 ISO-K 212-021
Welding flange, steel, DN 100 ISO-K 212-022




Type DN 63 ISO-K DN 100 ISO-K
Dimension A 95 mm 130 mm
Dimension B 76,1 mm 108 mm
Dimension C 70,3 mm 102,2 mm
Dimension D 12 mm 12 mm
Dimension E 6 mm 6 mm
Material Steel -/ 1.0831 Steel -/ 1.0831