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CF to ISO Adapter Flanges enlarge image tool
Representative Image

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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Contact Us
Questions? Let's Talk!
Contact your dedicated Lesker sales team today.
+1 800 245 1656
Note:
  • special case 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.

Got VacuCADSM?
VacuCAD is a free library containing thousands of 2D CAD drawings (in DXF format) and 3D Models (in STP format) for many of our standard vacuum components and chambers. Please Log in

Ordering Table

All dimensions listed in the table below, unless otherwise stated, are in inches.

(Click column headers to sort data)

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 +1 800 245 1656 or email salesus@lesker.com with your inquiry.

Accessories Table

DescriptionForPer PackageNote
VacuCADSM
Part NumberPriceIn StockAdd Item
DescriptionForPer PackageNote
VacuCADSM
Part NumberPriceIn StockAdd 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
$47.00
In Stock
Gasket Removal Tool, For All Conflat (CF) Flange Sizes All CF Flanges 1 —
N/A
VZGRT
$38.50
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 —
(please log in)
GA-0133View GA-0133 Specific Information
$26.35
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-0212View GA-0212 Specific Information
$29.05
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-0275View GA-0275 Specific Information
$34.40
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-0337View GA-0337 Specific Information
$37.15
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-0450View GA-0450 Specific Information
$58.90
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 —
(please log in)
GA-0462View GA-0462 Specific Information
$60.85
In Stock
Gasket, Copper, DN100CF (6.00" OD) Flange, 4.743" OD,4.006" ID, (10) Per Package All 6" (DN100CF) Flanges 10 —
(please log in)
GA-0600View GA-0600 Specific Information
$75.80
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 —
(please log in)
GA-0675View GA-0675 Specific Information
$93.50
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-0800View GA-0800 Specific Information
$105.30
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-1000View GA-1000 Specific Information
$131.30
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 —
(please log in)
GA-1325View GA-1325 Specific Information
$69.45
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 1
N/A
SBS832075S4-25
$40.00
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
$65.00
In Stock
Double Clamps (Aluminum) ISO63 - ISO100 "K" Flanges 1 —
(please log in)
QF-SDC-AL1
$6.95
In Stock
Double Clamps (Aluminum) ISO160 - ISO250 "K" Flanges 1 —
(please log in)
QF-SDC-AL2
$7.60
In Stock
Double Clamps (Aluminum) ISO320 - ISO500 "K" Flanges 1 —
(please log in)
QF-SDC-AL3
$14.55
In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO63 "K" Flanges 1 —
(please log in)
QF63-SAVR
$52.90
In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO80 "K" Flanges 1 —
(please log in)
QF80-SAVR
$73.60
In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO100 "K" Flanges 1 —
(please log in)
QF100-SAVR
$70.45
In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO160 "K" Flanges 1 —
(please log in)
QF160-SAVR
$92.20
In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO200 "K" Flanges 1 —
(please log in)
QF200-SAVR
$128.50
In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO250 "K" Flanges 1 —
(please log in)
QF250-SAVR
$153.35
In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO320 "K" Flanges 1 —
(please log in)
QF320-SAVR
$438.30
In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO400 "K" Flanges 1 —
(please log in)
QF400-SAVR
$466.25
In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO500 "K" Flanges 1 —
N/A
QF500-SAVR
$885.00
In Stock
Centering Ring (SS with Fluorocarbon O-Ring) ISO630 "K" Flanges 1 —
(please log in)
QF630-SAVR
$1,790.00
Contact KJLC for Availability

 Notes: 
1.
This item is a socket head cap screw, not a hex head bolt.
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