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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

CF16 Fixed Bored Flange, 34mm OD 19mm ID SKU: F16B19 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 SteelBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are availableTubulated flanges are available for welding to stainless steel tube* European standard, to be used with copper gasket OD 272.7 mm £ 7.00 7.0 GBP	CF16 - Bored Tapped Flange, 19mm ID SKU: F16B19T 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 SteelBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are availableTubulated flanges are available for welding to stainless steel tube* European standard, to be used with copper gasket OD 272.7 mm £ 15.50 15.5 GBP	CF16 - Plastic CF Flange Cap SKU: F16CAP CF Flange caps are used to protect the knife edge face on CF Flanges. Manufactured from: Plastic £ 0.32 0.32 GBP	CF16 Nut, Bolt and Washers SKU: F16NBWS CF Nut Bolt & Washers with Silver Plated Bolts are used to Clamp two flanges together and compress them against the copper gasket creating a vacuum seal for applications involving Baking. The Silver Plating allows for easy disassembly after BakingManufactured from: Stainless Steel. And Silver Plating CF Nut Bolt & Washer (Silver Plated Bolts) sets are supplied in sealed plastic bags.CF Nuts, Bolts & Washers (Silver Plated Bolts) are manufactured to the ISO standard and are compatible with other supplier’s products £ 1.84 1.84 GBP
CF16 Rotatable Blank CF Flange SKU: F16R 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 suppliedBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are availableTubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm £ 9.95 9.950000000000001 GBP	CF16 Rotatable Bored CF Flange, 34mm OD 19mm ID SKU: F16R19 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 £ 9.95 9.950000000000001 GBP	CF16 Bored Rotatable Tapped Flange, 19mm ID SKU: F16R19T 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 productMaterial: 304L Stainless SteelBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are availableTubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm £ 13.96 13.96 GBP	CF16 Blank Rotatable Tapped Flange SKU: F16RT 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 suppliedBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are availableTubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm
CF16 Nut, Bolt and Washers SKU: F16TBWS CF Nut Bolt & Washers with Silver Plated Bolts are used to Clamp two flanges together and compress them against the copper gasket creating a vacuum seal for applications involving Baking. The Silver Plating allows for easy disassembly after BakingManufactured from: Stainless Steel. And Silver Plating CF Nut Bolt & Washer (Silver Plated Bolts) sets are supplied in sealed plastic bags.CF Nuts, Bolts & Washers (Silver Plated Bolts) are manufactured to the ISO standard and are compatible with other supplier’s products £ 0.97 0.97 GBP	CF200 Fixed Blank Flange SKU: F200 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 £ 187.56 187.56 GBP	CF200 Fixed Bored Flange, 254mm OD 203mm ID SKU: F200B 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 SteelBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are availableTubulated flanges are available for welding to stainless steel tube* European standard, to be used with copper gasket OD 272.7 mm £ 149.90 149.9 GBP	CF200 - Bored Tapped Flange, 204mm ID SKU: F200BT 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 £ 184.50 184.5 GBP
CF200 - Plastic CF Flange Cap SKU: F200CAP CF Flange caps are used to protect the knife edge face on CF Flanges. Manufactured from: Plastic £ 2.95 2.95 GBP	CF200 Nut, Bolt and Washers SKU: F200NBWS CF Nut Bolt & Washers with Silver Plated Bolts are used to Clamp two flanges together and compress them against the copper gasket creating a vacuum seal for applications involving Baking. The Silver Plating allows for easy disassembly after BakingManufactured from: Stainless Steel. And Silver Plating CF Nut Bolt & Washer (Silver Plated Bolts) sets are supplied in sealed plastic bags.CF Nuts, Bolts & Washers (Silver Plated Bolts) are manufactured to the ISO standard and are compatible with other supplier’s products £ 25.51 25.51 GBP	CF200 Rotatable Blank CF Flange SKU: F200R 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 suppliedBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are availableTubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm £ 232.50 232.5 GBP	CF200 Rotatable Bored CF Flange, 254mm OD 203mm ID SKU: F200RB 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 £ 189.00 189.0 GBP
CF200 Bored Rotatable Tapped Flange, 204mm ID SKU: F200RBT 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 productMaterial: 304L Stainless SteelBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are availableTubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm £ 215.20 215.20000000000002 GBP	CF200 Blank Rotatable Tapped Flange SKU: F200RT 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 suppliedBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are availableTubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm	CF200 Blank Tapped Flange SKU: F200T 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 SteelBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are availableTubulated flanges are available for welding to stainless steel tube * European standard, to be used with copper gasket OD 272.7 mm £ 167.95 167.95000000000002 GBP	CF200 Nut, Bolt and Washers SKU: F200TBWS CF Nut Bolt & Washers with Silver Plated Bolts are used to Clamp two flanges together and compress them against the copper gasket creating a vacuum seal for applications involving Baking. The Silver Plating allows for easy disassembly after BakingManufactured from: Stainless Steel. And Silver Plating CF Nut Bolt & Washer (Silver Plated Bolts) sets are supplied in sealed plastic bags.CF Nuts, Bolts & Washers (Silver Plated Bolts) are manufactured to the ISO standard and are compatible with other supplier’s products £ 38.14 38.14 GBP