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KF (QF) Bolt Clamps (Aluminum)

These bolt clamps are used (in conjunction with metal seal discs) for mating KF flanges in UHV applications. The KF (QF) flange is typically used for through- or foreline vacuum plumbing and for simple HV chamber ports; however UHV pressures can be attained when using the necessary devices listed on this page.

KF Bolt Clamps Feature:

  • Three-part device closed with socket head screws
  • Aluminum construction
  • Used with metal seal discs ("gaskets") for UHV pressures
  • Requires aluminum seal discs and outer support rings (sold separately, below)
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Ordering Table

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Accessories Table

Description For Per Package
VacuCADSM
Part Number Price In Stock Add Item
Description For Per Package
VacuCADSM
Part Number Price In Stock Add Item
Aluminum Seal Discs KF16 N/A
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QF16-075-CCD
$56.30 Call for Availability
Outer Support Rings KF16 N/A
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QF16-075-OSR
$14.60 Call for Availability
Aluminum Seal Discs KF25 N/A
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QF25-100-CCD
$43.25 Call for Availability
Outer Support Rings KF25 N/A
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QF25-100-OSR
$16.00 Call for Availability
Aluminum Seal Discs KF40 N/A
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QF40-150-CCD
$56.30 Call for Availability
Outer Support Rings KF40 N/A
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QF40-150-OSR
$16.10 Call for Availability