Close

Please select your country or region to be
directed to the appropriate Lesker site.

Representative Image

Double-Faced CF Flanges

Double-faced CF flanges feature the same sized knife-edged sealing surface on both sides. The CF flange is the most widely used for high vacuum and UHV applications. Many gauges, instruments, accessories and feedthroughs are available on this flange system.

Double-Faced Flange Features:

  • Different from reducer flanges which adapt two different flange sizes
  • Through-hole bolt holes (tapped bolt hole versions available -- please contact us)
ISO Standard KJLC flanges & gaskets are compatible with ISO3669-2017, but more importantly are compliant to the stricter requirements of ASTM E2934-10.

Contact Us
To speak with someone directly, please call +1 412 387 9200 or email international@lesker.com.
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

(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 +1 412 387 9200 or email international@lesker.com with your inquiry.

Accessories Table

Description For Per Package Manual
VacuCADSM
Part Number Price In Stock Add Item
Description For Per Package Manual
VacuCADSM
Part Number Price In Stock Add Item
1/4 Hard OFHC Copper Gasket 1-1/3" (DN16CF) Double-Faced CF Flanges 10 --
(please log in)
GA-0133
$21.05 In Stock
1/4 Hard OFHC Copper Gasket 2-1/8" (DN25CF) Double-Faced CF Flanges 10 --
(please log in)
GA-0212
$24.05 In Stock
1/4 Hard OFHC Copper Gasket 2-3/4" (DN35-DN40CF) Double-Faced CF Flanges 10 --
(please log in)
GA-0275
$27.35 In Stock
1/4 Hard OFHC Copper Gasket 3-3/8" (DN50CF) Double-Faced CF Flanges 10 --
(please log in)
GA-0337
$31.10 In Stock
1/4 Hard OFHC Copper Gasket 4-1/2" (DN63CF) Double-Faced CF Flanges 10 --
(please log in)
GA-0450
$37.20 In Stock
1/4 Hard OFHC Copper Gasket 4-5/8" (DN75CF) Double-Faced CF Flanges 10 --
(please log in)
GA-0462
$44.25 In Stock
1/4 Hard OFHC Copper Gasket 6" (DN100CF) Double-Faced CF Flanges 10 --
(please log in)
GA-0600
$55.30 In Stock
1/4 Hard OFHC Copper Gasket 6-3/4" (DN125CF) Double-Faced CF Flanges 10 --
(please log in)
GA-0675
$66.35 In Stock
1/4 Hard OFHC Copper Gasket 8" (DN160CF) Double-Faced CF Flanges 10 --
(please log in)
GA-0800
$78.40 In Stock
1/4 Hard OFHC Copper Gasket 10" (DN200CF) Double-Faced CF Flanges 10 --
(please log in)
GA-1000
$96.50 In Stock
1/4 Hard OFHC Copper Gasket 13-1/4" Double-Faced CF Flanges 1 --
(please log in)
GA-1325
$54.30 In Stock
1/4—28 x 2" Bolt & Nut Set 2-1/8" (DN25CF) Double-Faced CF Flanges 25 --
(please log in)
HBS25028200
$26.75 In Stock
1/4—28 x 2-1/4" Bolt & Nut Set 2-3/4" (DN35-DN40CF) Double-Faced CF Flanges 25 --
(please log in)
HBS25028225
$26.75 Call for Availability
5/16—24 x 2-1/4" Bolt & Nut Set 3-3/8" (DN50CF) & 6-3/4" (DN125CF) Double-Faced CF Flanges 25 --
(please log in)
HBS31224225
$39.20 In Stock
5/16—24 x 2-1/2" Bolt & Nut Set 4-1/2" (DN63CF) & 4-5/8" (DN75CF) Double-Faced CF Flanges 25 --
(please log in)
HBS31224250
$30.05 Call for Availability
5/16—24 x 3" Bolt & Nut Set 6" (DN100CF) & 8" (DN160CF) Double-Faced CF Flanges 25 --
N/A
HBS31224300
$50.25 In Stock
5/16—24 x 3-1/2" Bolt & Nut Set 10" (DN200CF) Double-Faced CF Flanges 25 --
N/A
HBS31224350
$47.25 In Stock
3/8—24 x 4" Bolt & Nut Set 13-1/4" Double-Faced CF Flanges 30 --
N/A
HBS37524400
$88.45 Call for Availability
#8—32 x 1-1/4" Bolt & Nut Set 1-1/3" (DN16CF) Double-Faced CF Flanges 25 --
N/A
SBS832125S4-25
$30.70 In Stock
Gasket Clips for CF Flanges All CF Flanges 10 Download PDF
N/A
VGC0275S
P.O.R. 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