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Since 1963 VACGEN have been supplying the Research and Scientific community with ultra-high vacuum equipment. With our long history of designing and developing core UHV components, we have been the partners of choice for leading institutes around the world. If you cannot find the product you are looking for in our catalogue components then please contact us on sales@vacgen.com and we will be happy to assist.

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  1. 203mm OD 153mm ID - 316LN (2D) Tapped Fixed Bored CF Flange
    SKU: CF203T-153-LN
    4 to 6 weeks delivery
    £483.49
    Fixed bored Conflat flange (CF) are available in the full range of sizes. The smaller range of flange can accept a number of different standard tube sizes. These are prepared ready for welding onto chamber tubulations or components.
  2. 254mm OD - 304L Fixed Blank CF Flange
    SKU: CF254
    £151.58
    Fixed blank Conflat flange (CF) are available in the full range of sizes. These are used to blank off unused chamber ports for leak-tight assembly, also allowing End User machining for non standard tube sizes or components.
  3. 254mm OD - 304L Rotable Blank CF Flange
    SKU: CFR254
    4 to 6 weeks delivery
    £510.53
    Rotatable blank Conflat flange (CF) consists of two parts, the inner knife edge detail and the outer bolt hole retaining ring which rotates around the inner part. This allows the boltholes to align to mating flanges in any orientation. These are used to blank off unused chamber ports for leak-tight assembly, also allowing End User machining for non standard tube sizes or components.
  4. 254mm OD 206mm ID - 304L Rotable Bored CF Flange
    SKU: CFR254-206
    4 to 6 weeks delivery
    £0.00
    Rotatable bored Conflat Flange (CF) are available in the full range of sizes. The smaller range of flange can accept a number of different standard tube sizes. These are prepared ready for welding onto chamber tubulations or components. The rotatable flange consists of two parts, the inner knife edge detail and the outer bolt hole retaining ring which rotates around the inner part.
  5. 254mm OD 206mm ID - 304L Tapped Rotable Bored CF Flange
    SKU: CFR254T-206
    4 to 6 weeks delivery
    £0.00
    Rotatable bored Conflat Flange (CF) are available in the full range of sizes. The smaller range of flange can accept a number of different standard tube sizes. These are prepared ready for welding onto chamber tubulations or components. The rotatable flange consists of two parts, the inner knife edge detail and the outer bolt hole retaining ring which rotates around the inner part.
  6. 254mm to 114mm OD 304L Zero Length Bored Adaptors
    SKU: CFZL254-114
    4 to 6 weeks delivery
    £447.18
    Zero Length Adaptor conflat Flange (CF) are used to adapt from one flange size to another. The larger flange OD has through bolt holes enabling ordinary nut and bolt to be used. The smaller flange OD has metric tapped holes. This connects different sizes of flanges where there is limited space and does not increase the chamber volume.
  7. 254mm to 152mm OD 304L Zero Length Bored Adaptors
    SKU: CFZL254-152
    4 to 6 weeks delivery
    £652.94
    Zero Length Adaptor conflat Flange (CF) are used to adapt from one flange size to another. The larger flange OD has through bolt holes enabling ordinary nut and bolt to be used. The smaller flange OD has metric tapped holes. This connects different sizes of flanges where there is limited space and does not increase the chamber volume.
  8. 254mm to 203mm OD 304L Zero Length Bored Adaptors
    SKU: CFZL254-203
    £530.54
    Zero Length Adaptor conflat Flange (CF) are used to adapt from one flange size to another. The larger flange OD has through bolt holes enabling ordinary nut and bolt to be used. The smaller flange OD has metric tapped holes. This connects different sizes of flanges where there is limited space and does not increase the chamber volume.
  9. 254mm to 70mm OD 304L Zero Length Bored Adaptors
    SKU: CFZL254-70
    4 to 6 weeks delivery
    £585.40
    Zero Length Adaptor conflat Flange (CF) are used to adapt from one flange size to another. The larger flange OD has through bolt holes enabling ordinary nut and bolt to be used. The smaller flange OD has metric tapped holes. This connects different sizes of flanges where there is limited space and does not increase the chamber volume.
  10. Gasket OFHC Copper Pk 5 250 OD Flange Silver Plated
    SKU: ZCUSP200
    4 to 6 weeks delivery
    Super clean ultra high quality oxygen free Silver plated gasket. These are rumbled to remove all the burrs, etched to remove surface skin prior to silver plating, UHV cleaned and individually packed. Completely free from any nickel flash base coat. Recommended for use in HV & UHV systems where the vacuum environment could oxidise a plain copper gasket.
  11. Gasket OFHC Copper Pk 5 250 OD Flange Unetched
    SKU: ZCUC200
    High quality oxygen-free copper gaskets for university and commercial use. These are rumbled to remove all the burrs, UHV cleaned and individually packed. Designed for UHV applications where high usage or bulk purchase pricing is required.
  12. Gasket OFHC Copper Pk 5 252 OD Flange Annealed Etched
    SKU: ZCUA200
    Super clean ultra high quality oxygen free annealed copper gaskets for lower tightening torque to make a UHV leak tight seal. These are rumbled to remove all the burrs, UHV cleaned and individually packed. Recommended for use where you are using zero length viewports and fragile ceramic feedthroughs.
  13. Gasket OFHC Copper Pk 5 254 OD Flange Etched
    SKU: ZCU200
    Super clean ultra high quality oxygen free surface etched copper gaskets for use in UHV application where there are no compromises in quality. These are rumbled to remove all the burrs, etched to remove surface skin, UHV cleaned and individually packed.
  14. Gasket Viton® Pk 2 250 OD Flange
    SKU: ZVIT200
    Viton® gaskets are used in HV applications with low bakeout temperatures (
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