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Welding Flange – Steel A570

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 160 ISO-K 212-023
Welding flange, steel, DN 250 ISO-K 212-025



Type DN 160 ISO-K DN 250 ISO-K
Dimension A 180 mm 290 mm
Dimension B 159 mm 267 mm
Dimension C 153,2 mm 261 mm
Dimension D 12 mm 12 mm
Dimension E 6 mm 6 mm
Material Steel A570/- Steel A570/-