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CF to ASA Adapter Flanges—Flat & Grooved

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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To speak with someone directly, please call +1 412 387 9200 or email international@lesker.com.
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
1/4 Hard OFHC Copper Gasket All 1-1/3" (DN16CF) Flanges 10
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GA-0133
$21.05 In Stock
1/4 Hard OFHC Copper Gasket All 2-1/8" (DN25CF) Flanges 10
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GA-0212
$24.05 In Stock
1/4 Hard OFHC Copper Gasket All 2-3/4" (DN35-DN40CF) Flanges 10
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GA-0275
$27.35 In Stock
1/4 Hard OFHC Copper Gasket All 3-3/8" (DN50CF) Flanges 10
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GA-0337
$31.10 In Stock
1/4 Hard OFHC Copper Gasket All 4-1/2" (DN63CF) Flanges 10
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GA-0450
$37.20 In Stock
1/4 Hard OFHC Copper Gasket All 4-5/8" (DN75CF) Flanges 10
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GA-0462
$44.25 In Stock
1/4 Hard OFHC Copper Gasket All 6" (DN100CF) Flanges 10
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GA-0600
$55.30 In Stock
1/4 Hard OFHC Copper Gasket All 6-3/4" (DN125CF) Flanges 10
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GA-0675
$66.35 In Stock
1/4 Hard OFHC Copper Gasket All 8" (DN160CF) Flanges 10
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GA-0800
$78.40 In Stock
1/4 Hard OFHC Copper Gasket All 10" (DN200CF) Flanges 10
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GA-1000
$96.50 In Stock
1/4 Hard OFHC Copper Gasket All 13-1/4" CF Flanges 1
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GA-1325
$54.30 In Stock
1/4—28 x 1-3/8" Bolt & Nut Set Blind Tapped 2-1/8" (DN25CF) Flanges 25
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HBK25028088
$15.60 In Stock
1/4—28 x 1-3/8" Bolt & Nut Set Blind Tapped 2-3/4" (DN35-DN40CF) Flanges 25
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HBK25028088
$15.60 In Stock
5/16—24 x 2-1/4" Bolt & Nut Set Blind Tapped 6" (DN100CF) Flanges 25
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HBK31224125
$31.10 In Stock
5/16—24 x 2-1/4" Bolt & Nut Set Blind Tapped 6-3/4" (DN125CF) Flanges 25
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HBK31224125
$31.10 In Stock
5/16—24 x 2-1/4" Bolt & Nut Set Blind Tapped 8" (DN160CF) Flanges 25
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HBK31224125
$31.10 In Stock
5/16—24 x 1-3/4" Bolt & Nut Set Blind Tapped 3-3/8" (DN50CF) Flanges 25
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HBK31224125
$31.10 In Stock
5/16—24 x 2" Bolt & Nut Set Blind Tapped 4-1/2" (DN63CF) Flanges 25
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HBK31224125
$31.10 In Stock
5/16—24 x 2" Bolt & Nut Set Blind Tapped 4-5/8" (DN75CF) Flanges 25
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HBK31224125
$31.10 In Stock
9/16—12 x 1.50" Bolt Sets Size 1 ASA & 1.5 ASA Flanges 4
N/A
HBS563121504
P.O.R. In Stock
5/8—11 x 1.75" Bolt Sets Size 2 ASA & 3 ASA Flanges 4
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HBS625111754
$16.10 In Stock
5/8—11 x 1.75" Bolt Sets Size 4 ASA Flanges 8
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HBS625111758
$30.05 In Stock
3/4—10 x 2.50" Bolt Sets Size 6 ASA & 8 ASA Flanges 8
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HBS751025008
$47.25 Call for Availability
3/4—10 x 2.50" Bolt Sets Size 10 ASA Flanges 12
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HBS751025012
$70.35 In Stock
O-Rings (Fluorocarbon) Size 1 ASA Flanges 1
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O-V223
$19.50 In Stock
O-Rings (Fluorocarbon) Size 1.5 ASA Flanges 1
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O-V231
$8.55 In Stock
O-Rings (Fluorocarbon) Size 2 ASA Flanges 1
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O-V238
$21.00 In Stock
O-Rings (Fluorocarbon) Size 3 ASA Flanges 1
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O-V247
$21.00 In Stock
O-Rings (Fluorocarbon) Size 4 ASA Flanges 1
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O-V258
$34.20 In Stock
O-Rings (Fluorocarbon) Size 6 ASA Flanges 1
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O-V266
$23.85 In Stock
O-Rings (Fluorocarbon) Size 8 ASA Flanges 1
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O-V274
$21.85 Call for Availability
O-Rings (Fluorocarbon) Size 10 ASA Flanges 1
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O-V278
$24.95 In Stock
8—32 x 3/4" (Skt Hd) Bolt & Nut Set Blind Tapped 1-1/3" (DN16CF) Flanges 25
N/A
SBK832050S4-25
$13.50 In Stock
Gasket Removal Tool All CF Flanges 1
N/A
VZGRT
$38.20 In Stock
4 oz. Tube Anti-Seize Thread Lube All CF Flanges 1
N/A
VZTL-4OZ
P.O.R. In Stock