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CF Fittings

CF Fittings


CF Vacuum Fittings on this site comply with the ISO 3669 standard and CF Vacuum Fittings up to NW200 are compatible with ConFlat flanges and CF flanges from other leading manufacturers.

While there is no general standard for CF flanges NW250 and over, essentially two “standards” have come into use, one Anglo-American and one European, both of which are available in our product line. Other standards are also used by some other manufacturers and in use at some research centres.

Due to UHV bakeability requirements, sealing of the CF flanges is provided by use of Oxygen-free copper (OFHC) flat gasket rings which usually can only be used once due to deformation. The tightening pressure is exerted by through-bore screws that have to be tightened uniformly and crosswise to avoid excessive strain.

  • Material: 304L stainless steel as standard, 316L and other materials can be supplied upon request
  • Bakeable to 450°C
  • Vacuum rating 1×10-11mbar
  • Wide ranges of elbows, crosses, tees and adaptors are available
  • Tubulated flanges are available for welding to stainless steel tube
CF63 Flange Tubulated Fixed
SKU: TU63
CF Tubulations Fixed are used to weld into other fabricated parts to produce ports for instruments and feedthrough attachments. Manufactured from: 304L Stainless Steel. Helium Leak tested to 10-10 mbar. They are supplied in a plastic bag with a protective plastic cap. CF Tubulations Fixed are manufactured to the CF Standard and are compatible with other supplier’s product. • Material: Stainless Steel • Bakeable up to 450°C • Vacuum Rating 1×10-11 mbar • Wide range of elbows, crosses, tees and adaptors are available ...more
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CF63 Flange Tubulated Rotatable
SKU: TU63R
CF Tubulations Rotatable are used to weld into other fabricated parts to produce ports for instruments and feedthrough attachments. Manufactured from: 304L Stainless Steel. Helium Leak tested to 10-10 mbar. They are supplied in a plastic bag with a protective plastic cap. CF Tubulations Rotatable are manufactured to the CF Standard and are compatible with other supplier’s product. • Material: 304L Stainless Steel • Bakeable to 450°C • Vacuum Rating 1×10-11 mbar • Wide range of elbows, crosses, tees and adaptors are available ...more
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CF63 Flange Tubulated Rotatable Tapped
SKU: TU63RT
CF Tubulations with Tapped Flanges are used to weld into other fabricated parts to produce ports for instruments and feedthrough attachments. Manufactured from: 304L Stainless Steel. Helium leak tested to 10-10 mbar. They are supplied in a plastic bag with a protective plastic cap. The CF Tubulations with Tapped Flanges are manufactured to the CF Standard and are compatible with other supplier’s product. • Material: 304L Stainless Steel • Bakeable to 450°C • Vacuum Rating 1×10-11 mbar • Wide range of elbows, crosses, tees and adaptors are available ...more
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CF63 Flange Tubulated Fixed Tapped
SKU: TU63T
CF Tubulations with Tapped Flanges are used to weld into other fabricated parts to produce ports for instruments and feedthrough attachments. Manufactured from: 304L Stainless Steel. Helium leak tested to 10-10 mbar. They are supplied in a plastic bag with a protective plastic cap. The CF Tubulations with Tapped Flanges are manufactured to the CF Standard and are compatible with other supplier’s product. • Material: 304L Stainless Steel • Bakeable to 450°C • Vacuum Rating 1×10-11 mbar • Wide range of elbows, crosses, tees and adaptors are available ...more
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