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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 to CF63 4 Way Reducing Cross Fixed SKU: UX1563 CF 4 Way Crosses are used to bring in two branch lines of the same size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF 4 Way Crosses 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 & tees are available	CF150 to CF63 4 Way Reducing Cross 2 Flanges Rotatable SKU: UX1563R CF 4 Way Reducing Crosses are used to bring two Branch lines 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.The CF 4 Way Reducing Cross 2 Flanges Rotatable 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 & tees are available	CF200 to CF100 4 Way Reducing Cross Fixed SKU: UX2010 CF 4 Way Crosses are used to bring in two branch lines of the same size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF 4 Way Crosses 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 & tees are available	CF200 to CF100 4 Way Reducing Cross 2 Flanges Rotatable SKU: UX2010R CF 4 Way Reducing Crosses are used to bring two Branch lines 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.The CF 4 Way Reducing Cross 2 Flanges Rotatable 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 & tees are available
CF200 to CF150 4 Way Reducing Cross Fixed SKU: UX2015 CF 4 Way Crosses are used to bring in two branch lines of the same size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF 4 Way Crosses 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 & tees are available	CF200 to CF150 4 Way Reducing Cross 2 Flanges Rotatable SKU: UX2015R CF 4 Way Reducing Crosses are used to bring two Branch lines 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.The CF 4 Way Reducing Cross 2 Flanges Rotatable 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 & tees are available	CF35 to CF16 4 Way Reducing Cross Fixed SKU: UX3516 CF 4 Way Crosses are used to bring in two branch lines of the same size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF 4 Way Crosses 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 & tees are available	CF35 to CF16 4 Way Reducing Cross 2 Flanges Rotatable SKU: UX3516R CF 4 Way Reducing Crosses are used to bring two Branch lines 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.The CF 4 Way Reducing Cross 2 Flanges Rotatable 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 & tees are available
CF63 to CF16 4 Way Reducing Cross Fixed SKU: UX6316 CF 4 Way Crosses are used to bring in two branch lines of the same size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF 4 Way Crosses 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 & tees are available	CF63 to CF35 4 Way Reducing Cross Fixed SKU: UX6335 CF 4 Way Crosses are used to bring in two branch lines of the same size into a main line.Manufactured from: 304L stainless steel. Helium Leak tested to10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps.The CF 4 Way Crosses 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 & tees are available	CF63 to CF35 4 Way Reducing Cross 2 Flanges Rotatable SKU: UX6335R CF 4 Way Reducing Crosses are used to bring two Branch lines 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.The CF 4 Way Reducing Cross 2 Flanges Rotatable 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 & tees are available	Viewport Shutter, Swing Type, 100% Full Coverage, 67mm Aperture, CF100 ID / 152mm OD Flange SKU: VPS100ST Some operations in the vacuum system may cause damage to the window. For example, metal evaporation in ultra-high vacuum systems can cause the surface of the window to be coated, making the inner surface of the window a reflective mirror. This results in the need to remove the window and clean the surface before reuse. To overcome this problem, we provide a series of window baffles. We provide lamella shutter and shutter shutters to choose from. Shutter shutters are aimed at large observation ports. The advantage is that the shutter opening movement traces are smooth and the amplitude is small. £ 1,232.00 1232.0 GBP
Viewport Shutter, Venetian Type, 67mm Aperture, CF152 Flange SKU: VPS100VB Some operations in the vacuum system may cause damage to the window. For example, metal evaporation in ultra-high vacuum systems can cause the surface of the window to be coated, making the inner surface of the window a reflective mirror. This results in the need to remove the window and clean the surface before reuse. To overcome this problem, we provide a series of window baffles. We provide lamella shutter and shutter shutters to choose from. Shutter shutters are aimed at large observation ports. The advantage is that the shutter opening movement traces are smooth and the amplitude is small. £ 1,739.00 1739.0 GBP	Viewport Shutter Pneumatic, Swing Type, 100% Full Coverage, 96mm Aperture, CF152 ID / 203mm OD Flange SKU: VPS150ST Some operations inside a vacuum system can cause harm or damage to a viewport. For example, Evaporation of metals in the UHV system can cause the viewport surface to become quickly coated, resulting in a mirror reflective surface. Removal and cleaning of the viewport will then be necessary before reusing it. To overcome these problems, we offer a range of viewport shutters, both Full-Coverage Swing Type and Venetian Blind Type (the latter being especially useful where a low profile when opened is preferable). £ 1,580.00 1580.0 GBP	Viewport Shutter, Swing Type, 100% Full Coverage, 26mm Aperture, CF70 Flange SKU: VPS35ST Some operations in the vacuum system may cause damage to the window. For example, metal evaporation in ultra-high vacuum systems can cause the surface of the window to be coated, making the inner surface of the window a reflective mirror. This results in the need to remove the window and clean the surface before reuse. To overcome this problem, we provide a series of window baffles. We provide lamella shutter and shutter shutters to choose from. Shutter shutters are aimed at large observation ports. The advantage is that the shutter opening movement traces are smooth and the amplitude is small. £ 791.00 791.0 GBP	Viewport Shutter, Swing Type, 100% Full Coverage, 45mm Aperture, CF114 Flange SKU: VPS63ST Some operations in the vacuum system may cause damage to the window. For example, metal evaporation in ultra-high vacuum systems can cause the surface of the window to be coated, making the inner surface of the window a reflective mirror. This results in the need to remove the window and clean the surface before reuse. To overcome this problem, we provide a series of window baffles. We provide lamella shutter and shutter shutters to choose from. Shutter shutters are aimed at large observation ports. The advantage is that the shutter opening movement traces are smooth and the amplitude is small. £ 822.00 822.0 GBP
CF100 Zero Length Viewport SKU: VPZ100 CF Zero length Viewports are used to view the interior of the vacuum chamber and view the process and/or manipulation Manufactured from: 304L stainless steel. Helium Leak tested to 10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps. The CF Zero-length Viewport manufactured to the CF Standard and are compatible with other supplier’s product. Material: Kodial Bakeable up to 200°C at not greater than 2-3 °C per minute To be used with annealed copper gaskets Vacuum rating 1×10-11 mbar	CF150 Zero Length Viewport SKU: VPZ150 CF Zero length Viewports are used to view the interior of the vacuum chamber and view the process and/or manipulation Manufactured from: 304L stainless steel. Helium Leak tested to 10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps. The CF Zero-length Viewport manufactured to the CF Standard and are compatible with other supplier’s product. Material: Kodial Bakeable up to 200°C at not greater than 2-3 °C per minute To be used with annealed copper gaskets Vacuum rating 1×10-11 mbar	CF16 Zero Length Viewport SKU: VPZ16 CF Zero length Viewports are used to view the interior of the vacuum chamber and view the process and/or manipulation Manufactured from: 304L stainless steel. Helium Leak tested to 10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps. The CF Zero-length Viewport manufactured to the CF Standard and are compatible with other supplier’s product. Material: Kodial Bakeable up to 200°C at not greater than 2-3 °C per minute To be used with annealed copper gaskets Vacuum rating 1×10-11 mbar	CF35 Zero Length Viewport SKU: VPZ35 CF Zero length Viewports are used to view the interior of the vacuum chamber and view the process and/or manipulation Manufactured from: 304L stainless steel. Helium Leak tested to 10-10 mbar. They are supplied in a sealed plastic bag with protective plastic caps. The CF Zero-length Viewport manufactured to the CF Standard and are compatible with other supplier’s product. Material: Kodial Bakeable up to 200°C at not greater than 2-3 °C per minute To be used with annealed copper gaskets Vacuum rating 1×10-11 mbar