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
CF100 Fixed Blank Flange
SKU: F100
CF Blank flanges are used to cap off the open ports where not required and are also used as a base part to manufacture adaptor fittings, instruments, feedthroughs etc. Manufactured from: 304L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. The CF Blank flanges are manufactured to the CF Standard and are compatible with other supplier’s product. • Material: Stainless Steel • Bakeable to 450°C • Vacuum Rating 1×10-11 mbar • Wide range of elbows, crosses, tees and adaptors are available • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 Fixed Bored Flange, 152mm OD 102mm ID
SKU: F100B
CF Bored Flanges Fixed are used for welding onto tube to produce ports and connectors when manufacturing fabrications. Manufactured from: 304L and 316L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. CF Bored Flanges Fixed 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 • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 Fixed Bored Flange, 152mm OD 108mm ID
SKU: F100B108
CF Bored Flanges Fixed are used for welding onto tube to produce ports and connectors when manufacturing fabrications. Manufactured from: 304L and 316L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. CF Bored Flanges Fixed 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 • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 - Bored Tapped Flange, 108mm ID
SKU: F100B108T
CF Bored Flanges Fixed are used for welding onto tube to produce ports and connectors when manufacturing fabrications. Manufactured from: 304L and 316L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. CF Bored Flanges Fixed 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 • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 - Bored Tapped Flange, 102mm ID
SKU: F100BT
CF Bored Flanges Fixed are used for welding onto tube to produce ports and connectors when manufacturing fabrications. Manufactured from: 304L and 316L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. CF Bored Flanges Fixed 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 • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 Rotatable Blank CF Flange
SKU: F100R
CF Rotatable Blank Flanges are used to cap off the open ports where not required and are also used as a base part to manufacture adaptor fittings, instruments, feedthroughs etc. Manufactured from: 304L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. CF Rotatable Blank Flanges are manufactured to the CF Standard and are compatible with other supplier’s product. • Material: 304L stainless steel as standard, 316L and other materials can be supplied • Bakeable to 450°C • Vacuum Rating 1×10-11 mbar • Wide range of elbows, crosses, tees and adaptors are available • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 Rotatable Bored CF Flange, 152mm OD 102mm ID
SKU: F100RB
CF Bored Flanges Rotatable are used for welding onto tube to produce ports and connectors when mating with fabrications with the bolt holes in different alignments. Manufactured from: 304L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. Rotatable CF Bored 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 • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 Rotatable Bored CF Flange, 152mm OD 108mm ID
SKU: F100RB108
CF Bored Flanges Rotatable are used for welding onto tube to produce ports and connectors when mating with fabrications with the bolt holes in different alignments. Manufactured from: 304L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. Rotatable CF Bored 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 • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 Bored Rotatable Tapped Flange, 108mm ID
SKU: F100RB108T
CF Bored Flanges Rotatable are used for welding onto tube to produce ports and connectors when mating with fabrications with the bolt holes in different alignments. Manufactured from: 304L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. Rotatable CF Bored 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 • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 Bored Rotatable Tapped Flange, 102mm ID
SKU: F100RBT
CF Bored Flanges Rotatable are used for welding onto tube to produce ports and connectors when mating with fabrications with the bolt holes in different alignments. Manufactured from: 304L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. Rotatable CF Bored 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 • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 Blank Rotatable Tapped Flange
SKU: F100RT
CF Rotatable Blank Flanges are used to cap off the open ports where not required and are also used as a base part to manufacture adaptor fittings, instruments, feedthroughs etc. Manufactured from: 304L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. CF Rotatable Blank Flanges are manufactured to the CF Standard and are compatible with other supplier’s product. • Material: 304L stainless steel as standard, 316L and other materials can be supplied • Bakeable to 450°C • Vacuum Rating 1×10-11 mbar • Wide range of elbows, crosses, tees and adaptors are available • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more
CF100 Blank Tapped Flange
SKU: F100T
CF Blank flanges are used to cap off the open ports where not required and are also used as a base part to manufacture adaptor fittings, instruments, feedthroughs etc. Manufactured from: 304L Stainless Steel. They are supplied in a plastic bag with a protective plastic cap. The CF Blank flanges are manufactured to the CF Standard and are compatible with other supplier’s product. • Material: Stainless Steel • Bakeable to 450°C • Vacuum Rating 1×10-11 mbar • Wide range of elbows, crosses, tees and adaptors are available • Tubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm ...more