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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

CF35 Fixed Blank Flange SKU: F35 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 Add to Cart £ 16.14 16.14 GBP	CF35 Fixed Bored Flange, 70mm OD 38mm ID SKU: F35B38 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 Add to Cart £ 10.50 10.5 GBP	CF35 - Bored Tapped Flange, 38mm ID SKU: F35B38T 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 Add to Cart £ 13.50 13.5 GBP	CF35 Fixed Bored CF Flange, 70mm OD 41mm ID SKU: F35B41 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 PLEASE NOTE: Before adding to quote, please select tapped or un-tapped bolt holes from the drop down menu. * European standard, to be used with copper gasket OD 272.7 mm ...more Add to Cart £ 11.99 11.99 GBP
CF35 - Bored Tapped Flange, 41mm ID SKU: F35B41T 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 PLEASE NOTE: Before adding to quote, please select tapped or un-tapped bolt holes from the drop down menu. * European standard, to be used with copper gasket OD 272.7 mm ...more Add to Cart £ 15.25 15.25 GBP	CF35 Fixed Bored CF Flange, 70mm OD 45mm ID SKU: F35B45 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 Add to Cart £ 11.99 11.99 GBP	CF35 - Bored Tapped Flange, 45mm SKU: F35B45T 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 Add to Cart £ 15.25 15.25 GBP	CF35 Rotatable Blank CF Flange SKU: F35R 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 Add to Cart £ 14.59 14.59 GBP
CF35 Rotatable Bored CF Flange, 70mm OD 38mm ID SKU: F35R38 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 Add to Cart £ 13.99 13.99 GBP	CF35 Bored Rotatable Tapped Flange, 38mm ID SKU: F35R38T 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 Add to Cart £ 18.95 18.95 GBP	CF35 Rotatable Bored CF Flange, 70mm OD 41mm SKU: F35R41 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 Add to Cart £ 14.99 14.99 GBP	CF35 Bored Rotatable Tapped Flange, 41mm ID SKU: F35R41T 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 Add to Cart £ 21.55 21.55 GBP
CF35 Rotatable Bored CF Flange, 70mm OD 45mm ID SKU: F35R45 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 Add to Cart £ 22.99 22.990000000000002 GBP	CF35 Bored Rotatable Tapped Flange, 45mm ID SKU: F35R45T 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 Add to Cart £ 21.55 21.55 GBP	CF35 Blank Rotatable Tapped Flange SKU: F35RT 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 Call for price	CF35 Blank Tapped Flange SKU: F35T 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 Add to Cart £ 16.45 16.45 GBP

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CF Fittings