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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

CF200 Flange Tubulated Fixed Tapped SKU: TU200T 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	CF35 Flange Tubulated Fixed SKU: TU35 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	CF35 Flange Tubulated Rotatable SKU: TU35R 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	CF35 Flange Tubulated Rotatable Tapped SKU: TU35RT 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 productMaterial: 304L Stainless SteelBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are available
CF35 Flange Tubulated Fixed Tapped SKU: TU35T 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	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	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	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 productMaterial: 304L Stainless SteelBakeable to 450°CVacuum rating 1×10-11 mbarWide range of elbows, crosses, tees and adaptors are available
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	CF100 to CF16 Unequal Tee Fixed SKU: UTE1016 CF Unequal Tees Fixed are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to 10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.CF Unequal Tees Fixed 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 are available	CF100 to CF16 Unequal Tee 2 Flanges Rotatable SKU: UTE1016R CF Unequal Tees are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF Unequal Tees 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 are available	CF100 to CF35 Unequal Tee 2 Flanges Rotatable SKU: UTE1035R CF Unequal Tees are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF Unequal Tees 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 are available
CF100 to CF63 Unequal Tee Fixed SKU: UTE1063 CF Unequal Tees Fixed are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to 10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.CF Unequal Tees Fixed 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 are available	CF100 to CF63 Unequal Tee 2 Flanges Rotatable SKU: UTE1063R CF Unequal Tees are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF Unequal Tees 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 are available	CF150 to CF100 Unequal Tee Fixed SKU: UTE1510 CF Unequal Tees Fixed are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to 10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.CF Unequal Tees Fixed 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 are available	CF150 to CF100 Unequal Tee 2 Flanges Rotatable SKU: UTE1510R CF Unequal Tees are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF Unequal Tees 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 are available
CF150 to CF16 Unequal Tee Fixed SKU: UTE1516 CF Unequal Tees Fixed are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to 10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.CF Unequal Tees Fixed 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 are available	CF150 to CF16 Unequal Tee 2 Flanges Rotatable SKU: UTE1516R CF Unequal Tees are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF Unequal Tees 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 are available	CF150 to CF35 Unequal Tee 2 Flanges Rotatable SKU: UTE1535R CF Unequal Tees are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF Unequal Tees 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 are available	CF150 to CF63 Unequal Tee Fixed SKU: UTE1563 CF Unequal Tees Fixed are used to bring a Branch line of a different size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to 10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.CF Unequal Tees Fixed 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 are available