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CF to ISO Adapter Flanges

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
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 1/4-28 x 1.38" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers All 2-1/8" (DN25CF) Flanges 25
(please log in)
HBS25028138
$30.50 In Stock
Thread Lubricant, 4 Ounce Tube All CF Flanges 1
N/A
VZTL-4OZ
P.O.R. In Stock
Gasket Removal Tool, For All Conflat (CF) Flange Sizes All CF Flanges 1
N/A
VZGRT
$38.20 In Stock
Gasket, Copper, DN16CF (1.33" OD) Flange , 0.837" OD, 0.640" ID, (10) Per Package All 1-1/3" (DN16CF) Flanges 10
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GA-0133
$21.05 In Stock
Gasket, Copper, DN25 (2.125" OD) Flange, 1.291" OD, 1.010" ID, (10) Per Package All 2-1/8" (DN25CF) Flanges 10
(please log in)
GA-0212
$24.05 In Stock
Gasket, Copper, DN35CF-DN40CF (2.75" OD) Flange, 1.895" OD, 1.451" ID, (10) Per Package All 2-3/4" (DN35-DN40CF) Flanges 10
(please log in)
GA-0275
$27.35 In Stock
Gasket, Copper, DN50CF (3.375" OD) Flange, 2.425" OD, 2.010" ID, (10) Per Package All 3-3/8" (DN50CF) Flanges 10
(please log in)
GA-0337
$31.10 In Stock
Gasket, Copper, DN63CF (4.50" OD) Flange, 3.243" OD, 2.506" ID, (10) Per Package All 4-1/2" (DN63CF) Flanges 10
(please log in)
GA-0450
$37.20 In Stock
Gasket, Copper, DN75CF (4.625" OD) Flange, 3.598" OD x 3.010" ID, (10) Per Package All 4-5/8" (DN75CF) Flanges 10
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GA-0462
$44.25 In Stock
Gasket, Copper, DN100CF (6.00" OD) Flange, 4.743" OD,4.006" ID, (10) Per Package All 6" (DN100CF) Flanges 10
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GA-0600
$55.30 In Stock
Gasket, Copper, DN125CF (6.75" OD) Flange, 5.567" OD x 5.010" ID, (10) Per Package All 6-3/4" (DN125CF) Flanges 10
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GA-0675
$66.35 In Stock
Gasket, Copper, DN160CF (8.00" OD) Flange, 6.743" OD, 6.007" ID, (10) Per Package All 8" (DN160CF) Flanges 10
(please log in)
GA-0800
$78.40 In Stock
Gasket, Copper, DN200CF (10.00" OD) Flange, 8.743" OD, 8.007" ID, (10) Per Package All 10" (DN200CF) Flanges 10
(please log in)
GA-1000
$96.50 In Stock
Gasket, Copper, DN275CF (13.25" OD) Flange, 11.590" OD, 10.845" ID, (1) Per Package All 13-1/4" CF Flanges 1
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GA-1325
$54.30 In Stock
Socket Head Cap Screw & Nut Set, Stainless Steel, DN16CF (1.33" OD) Flange, (25) 8-32 x 0.75" Long Socket Head Cap Screws & (25) Hex Nuts All 1-1/3" (DN16CF) Flanges 25
N/A
SBS832075S4-25
P.O.R. In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 1/4-28 x 1.38" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers All 2-3/4" (DN35-DN40CF) Flanges 25
(please log in)
HBS25028138
$30.50 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 1.75" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers All 3-3/8" (DN50CF) Flanges 25
(please log in)
HBS31224175
$39.20 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.00" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers All 4-1/2" (DN63CF) Flanges 25
(please log in)
HBS31224200
$33.20 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.00" Long Hex Bolts, (25) Hex Nuts, & (50) Flat Washers All 4-5/8" (DN75CF) Flanges 25
(please log in)
HBS31224200
$33.20 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.25" Hex Bolts, (25) Hex Nuts, & (50) Flat Washers All 6" (DN100CF) Flanges 25
(please log in)
HBS31224225
$39.20 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.25" Hex Bolts, (25) Hex Nuts, & (50) Flat Washers All 6-3/4" (DN125CF) Flanges 25
(please log in)
HBS31224225
$39.20 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.25" Hex Bolts, (25) Hex Nuts, & (50) Flat Washers All 8" (DN160CF) Flanges 25
(please log in)
HBS31224225
$39.20 In Stock
Hex,bolt, Nut & Washer Set, Stainless Steel, (25) 5/16-24 x 2.50" Hex Bolts, (25) Hex Nuts, & (50) Flat Washers All 10" (DN200CF) Flanges 25
(please log in)
HBS31224250
$30.05 In Stock
Hex Bolt, Nut & Washer Set, Stainless Steel, (30) 3/8-24 x 3.00" Hex Bolts, (30) Hex Nuts, & (60) Flat Washers All 13-1/4" CF Flanges 30
N/A
HBS37524300
$48.25 In Stock
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
(please log in)
QF-SDC-AL3
$14.10 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO63 "K" Flanges 1
(please log in)
QF63-SAVR
$51.30 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO80 "K" Flanges 1
(please log in)
QF80-SAVR
$71.40 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO100 "K" Flanges 1
(please log in)
QF100-SAVR
$68.35 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO160 "K" Flanges 1
(please log in)
QF160-SAVR
$89.45 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO200 "K" Flanges 1
(please log in)
QF200-SAVR
$124.65 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO250 "K" Flanges 1
(please log in)
QF250-SAVR
$148.75 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO320 "K" Flanges 1
(please log in)
QF320-SAVR
$425.15 In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO400 "K" Flanges 1
(please log in)
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
(please log in)
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 - CF to ISO Adapter Flanges