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KF (QF) to ISO-K Adapters

Adapter flanges allow the mating of one type of flange system to another. All of our flange adapters are manufactured from 304 series stainless steel tubing and flanges.

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Note:
  • Mixing flange types using adapters is possible but not recommended unless necessary to match existing components or fittings. However, using one flange type for chamber-mounted components and another type for foreline components is common practice.

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Ordering Table

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Flange Selection Guide
With a variety of flanges to choose from, the Flange Selection Guide is designed to help you find one to meet your vacuum requirements. Shop Now!
Can't find the flange you need or want a custom configuration? Please call us at +1 412 387 9200 or email international@lesker.com with your inquiry.

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
Double Clamps (Aluminum) ISO63 - ISO100 "K" Flanges 1
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QF-SDC-AL1
$6.75 In Stock
Double Clamps (Aluminum) ISO160 - ISO250 "K" Flanges 1
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QF-SDC-AL2
$7.35 In Stock
Double Clamps (Aluminum) ISO320 - ISO500 "K" Flanges 1
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QF-SDC-AL3
$14.10 In Stock
Cast Clamps (SS) KF10, KF16 Flanges 1
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QF16-075-CS
$46.25 In Stock
Cast Clamps (SS) KF25 Flanges 1
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QF25-100-CS
$57.30 In Stock
Cast Clamps (SS) KF40 Flanges 1
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QF40-150-CS
$67.35 In Stock
Cast Clamps (SS) KF50 Flanges 1
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QF50-200-CS
$79.40 In Stock
Lever Clamps (Aluminum) KF10, KF16 Flanges 1
N/A
QF16-075-CHA
$33.20 In Stock
Lever Clamps (Aluminum) KF25 Flanges 1
N/A
QF25-100-CHA
$46.35 In Stock
Lever Clamps (Aluminum) KF40 Flanges 1
N/A
QF40-150-CHA
$54.72 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) KF10 Flanges 1
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QF10-050-SRV
$6.45 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) KF16 Flanges 1
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QF16-075-SRV
$6.75 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) KF25 Flanges 1
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QF25-100-SRV
$8.55 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) KF40 Flanges 1
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QF40-150-SRV
$13.10 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) KF50 Flanges 1
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QF50-200-SRV
$15.10 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO63 "K" Flanges 1
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QF63-SAVR
$51.30 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO80 "K" Flanges 1
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QF80-SAVR
$71.40 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO100 "K" Flanges 1
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QF100-SAVR
$68.35 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO160 "K" Flanges 1
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QF160-SAVR
$89.45 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO200 "K" Flanges 1
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QF200-SAVR
$124.65 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO250 "K" Flanges 1
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QF250-SAVR
$148.75 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO320 "K" Flanges 1
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QF320-SAVR
$425.15 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO400 "K" Flanges 1
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QF400-SAVR
$452.25 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO500 "K" Flanges 1
N/A
QF500-SAVR
$1,335.65 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO630 "K" Flanges 1
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QF630-SAVR
P.O.R. In Stock
How to Combine Click the checkboxes of the parts you would like to purchase and then click the button below to add all parts selected into your Cart.
Contact Us - KF (QF) to ISO-K Adapters