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Flanges & Components > KF (QF) Flanges & Components > KF (QF) Clamps & Accessories

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

(Click column headers to sort data)

Flange
Size
Material Weight
lbs
PartNo Price Add Item
VacuCADSM
Flange
Size
Material Weight
lbs
PartNo Price Add Item
VacuCADSM
KF16 Aluminum 1
QF16-075-CC
$26.80
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KF25 Aluminum 1
QF25-100-CC
$39.00
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KF40 Aluminum 1.5
QF40-150-CC
$48.00
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Accessories Table

Description For Per Package Manual PartNo Price Add Item
VacuCADSM
Description For Per Package Manual PartNo Price Add Item
VacuCADSM
Aluminum Seal Discs
KF16
N/A
--
QF16-075-CCD
$56.00
N/A
Outer Support Rings
KF16
N/A
--
QF16-075-OSR
$14.50
N/A
Aluminum Seal Discs
KF25
N/A
--
QF25-100-CCD
$43.00
N/A
Outer Support Rings
KF25
N/A
--
QF25-100-OSR
$15.50
N/A
Aluminum Seal Discs
KF40
N/A
--
QF40-150-CCD
$56.00
N/A
Outer Support Rings
KF40
N/A
--
QF40-150-OSR
$15.50
N/A

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