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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

CF150 Silver Plated Bolts with Plain Stainless steel Nuts and Washers for Joining a Through Hole to a Tapped Flange SKU: SPF150TBWS 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 Baking Manufactured 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 £ 25.26 25.26 GBP	CF16 Silver Plated Bolts with Plain Stainless Steel Nuts and Washers for Joining Two Through Hole Flanges Together SKU: SPF16NBWS 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 Baking Manufactured 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 £ 6.24 6.24 GBP	CF16 Silver Plated Bolts with Plain Stainless steel Nuts and Washers for Joining a Through Hole to a Tapped Flange SKU: SPF16TBWS 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 Baking Manufactured 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 £ 5.79 5.79 GBP	CF200 Silver Plated Bolts with Plain Stainless Steel Nuts and Washers for Joining Two Through Hole Flanges Together SKU: SPF200NBWS 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 Baking Manufactured 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 £ 37.57 37.57 GBP
CF200 Silver Plated Bolts with Plain Stainless steel Nuts and Washers for Joining a Through Hole to a Tapped Flange SKU: SPF200TBWS 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 Baking Manufactured 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 £ 42.10 42.1 GBP	CF250 Silver Plated Bolts with Plain Stainless Steel Nuts and Washers for Joining Two Through Hole Flanges Together SKU: SPF250NBWS 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 £ 50.60 50.6 GBP	CF250 Silver Plated Bolts with Plain Stainless steel Nuts and Washers for Joining a Through Hole to a Tapped Flange SKU: SPF250TBWS 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 £ 56.14 56.14 GBP	CF35 Silver Plated Bolts with Plain Stainless Steel Nuts and Washers for Joining Two Through Hole Flanges Together SKU: SPF35NBWS 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 £ 6.84 6.84 GBP
CF35 Silver Plated Bolts with Plain Stainless steel Nuts and Washers for Joining a Through Hole to a Tapped Flange SKU: SPF35TBWS 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 £ 6.43 6.43 GBP	CF63 Silver Plated Bolts with Plain Stainless Steel Nuts and Washers for Joining Two Through Hole Flanges Together SKU: SPF63NBWS 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 Baking Manufactured 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 £ 11.47 11.47 GBP	CF63 Silver Plated Bolts with Plain Stainless steel Nuts and Washers for Joining a Through Hole to a Tapped Flange SKU: SPF63TBWS 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 £ 9.83 9.83 GBP	CF100 to CF35 Tubulated Reducing Adaptor Fixed SKU: TA1035 CF Tubulated Reducing Adaptors Fixed are used to change from one size of tube or flange to another size enabling the fitting together of mismatched components.Manufactured from: 304L Stainless Steel. Helium Leak tested to10-10 mbar. They are supplied in a plastic bag with protective plastic caps.CF Tubulated Reducing Adaptors 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 available
CF100 Fixed to CF35 Rotatable Tubulated Reducing Adaptor SKU: TA1035R CF Tubulated reducing adaptors are used to change from one size of tube or flange to another size enabling the fitting together of mismatched components.Manufactured from: 304L Stainless Steel. Helium Leak tested to10-10 mbar. They are supplied in a plastic bag with protective plastic caps.The CF Tubulated reducing adaptors 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 available	CF100 CF63 Tubulated Reducing Adaptor Fixed SKU: TA1063 CF Tubulated Reducing Adaptors Fixed are used to change from one size of tube or flange to another size enabling the fitting together of mismatched components.Manufactured from: 304L Stainless Steel. Helium Leak tested to10-10 mbar. They are supplied in a plastic bag with protective plastic caps.CF Tubulated Reducing Adaptors 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 available	CF100 Fixed to CF63 Rotatable Tubulated Reducing Adaptor SKU: TA1063R CF Tubulated reducing adaptors are used to change from one size of tube or flange to another size enabling the fitting together of mismatched components.Manufactured from: 304L Stainless Steel. Helium Leak tested to10-10 mbar. They are supplied in a plastic bag with protective plastic caps.The CF Tubulated reducing adaptors 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 available	CF150 to CF100 Tubulated Reducing Adaptor Fixed SKU: TA1510 CF Tubulated Reducing Adaptors Fixed are used to change from one size of tube or flange to another size enabling the fitting together of mismatched components.Manufactured from: 304L Stainless Steel. Helium Leak tested to10-10 mbar. They are supplied in a plastic bag with protective plastic caps.CF Tubulated Reducing Adaptors 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 available
CF150 Fixed to CF100 Rotatable Tubulated Reducing Adaptor SKU: TA1510R CF Tubulated reducing adaptors are used to change from one size of tube or flange to another size enabling the fitting together of mismatched components.Manufactured from: 304L Stainless Steel. Helium Leak tested to10-10 mbar. They are supplied in a plastic bag with protective plastic caps.The CF Tubulated reducing adaptors 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 available	CF150 to CF35 Tubulated Reducing Adaptor Fixed SKU: TA1535 CF Tubulated Reducing Adaptors Fixed are used to change from one size of tube or flange to another size enabling the fitting together of mismatched components.Manufactured from: 304L Stainless Steel. Helium Leak tested to10-10 mbar. They are supplied in a plastic bag with protective plastic caps.CF Tubulated Reducing Adaptors 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 available	CF150 Fixed to CF35 Rotatable Tubulated Reducing Adaptor SKU: TA1535R CF Tubulated reducing adaptors are used to change from one size of tube or flange to another size enabling the fitting together of mismatched components.Manufactured from: 304L Stainless Steel. Helium Leak tested to10-10 mbar. They are supplied in a plastic bag with protective plastic caps.The CF Tubulated reducing adaptors 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 available	CF150 to CF63 Tubulated Reducing Adaptor Fixed SKU: TA1563 CF Tubulated Reducing Adaptors Fixed are used to change from one size of tube or flange to another size enabling the fitting together of mismatched components.Manufactured from: 304L Stainless Steel. Helium Leak tested to10-10 mbar. They are supplied in a plastic bag with protective plastic caps.CF Tubulated Reducing Adaptors 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 available