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Stainless / Pyrex / Stainless Double Tube CF Adapters

Glass to metal tube flanged adapters (seals) use a graded glass seal to join a metal tube to a glass tube. They are often used to observe a process or to provide electrical isolation.

Glass to Metal Tube Flanged Adapters Feature:

  • Glass seal materials available include 7740 Pyrex and 7052 Glass
  • Metal seal materials available include Kovar or stainless steel
  • Tube End Type Bakeable to 400°C
  • CF Flanged Type Bakeable to 400°C
  • ISO Flanged Type Bakeable to 200°C (Bake Temperature is O-Ring Seal Dependant)
  • CF or KF flange terminations available
  • Seal Configurations Available:
    • glass tube - metal tube
    • glass dome end - metal tube
    • glass tube - metal tube - glass tube
    • metal tube - glass tube - metal tube
    • glass tube - flex hose - metal tube
Contact Us
To speak with someone directly, please call +1 412 387 9200 or email international@lesker.com.
Note:
  • We also offer nonstandard sizes, larger sizes, custom lengths, and adapters with bellows (to compensate for misalignments). Please contact us for details.

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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 1-1/3" (DN16CF) Nipples 10
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GA-0133
$21.05 In Stock
1/4 Hard OFHC Copper Gasket 2-1/8" (DN25CF) Nipples 10
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GA-0212
$24.05 In Stock
1/4 Hard OFHC Copper Gasket 2-3/4" (DN35-DN40CF) Nipples 10
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GA-0275
$27.35 In Stock
1/4 Hard, 1.53" I.D.* OFHC Copper Gasket 2-3/4" (DN35-DN40CF) Nipples 10
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GA-0275LB
$27.35 In Stock
1/4 Hard OFHC Copper Gasket 3-3/8" (DN50CF) Nipples 10
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GA-0337
$31.10 In Stock
1/4 Hard OFHC Copper Gasket 4-1/2" (DN63CF) Nipples 10
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GA-0450
$37.20 In Stock
1/4 Hard OFHC Copper Gasket 4-5/8" (DN75CF) Nipples 10
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GA-0462
$44.25 In Stock
1/4 Hard OFHC Copper Gasket 6" (DN100CF) Nipples 10
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GA-0600
$55.30 In Stock
1/4 Hard OFHC Copper Gasket 6-3/4" (DN125CF) Nipples 10
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GA-0675
$66.35 In Stock
1/4 Hard OFHC Copper Gasket 8" (DN160CF) Nipples 10
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GA-0800
$78.40 In Stock
1/4 Hard OFHC Copper Gasket 10" (DN200CF) Nipples 10
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GA-1000
$96.50 In Stock
1/4 Hard OFHC Copper Gasket 13-1/4" CF Nipples 1
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GA-1325
$54.30 In Stock
1/4—28 x 1-3/8" Bolt & Nut Set 2-1/8" (DN25CF) Nipples 25
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HBS25028138
$30.50 In Stock
1/4—28 x 1-3/8" Bolt & Nut Set 2-3/4" (DN35-DN40CF) Nipples 25
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HBS25028138
$30.50 In Stock
5/16—24 x 1-3/4" Bolt & Nut Set 3-3/8" (DN50CF) Nipples 25
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HBS31224175
$39.20 In Stock
5/16—24 x 2" Bolt & Nut Set 6" (DN100CF) Nipples 25
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HBS31224200
$33.20 In Stock
5/16—24 x 2" Bolt & Nut Set 4-1/2" (DN63CF) Nipples 25
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HBS31224200
$33.20 In Stock
5/16—24 x 2" Bolt & Nut Set 4-5/8" (DN75CF) Nipples 25
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HBS31224200
$33.20 In Stock
5/16—24 x 2-1/4" Bolt & Nut Set 6-3/4" (DN125CF) Nipples 25
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HBS31224225
$39.20 In Stock
5/16—24 x 2-1/4" Bolt & Nut Set 8" (DN160CF) Nipples 25
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HBS31224225
$39.20 In Stock
5/16—24 x 2-1/2" Bolt & Nut Set 10" (DN200CF) Nipples 25
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HBS31224250
$30.05 In Stock
3/8—24 x 3" Bolt & Nut Set 13-1/4" CF Nipples 30
N/A
HBS37524300
$48.25 In Stock
8—32 x 3/4" (Skt Hd) Bolt & Nut Set 1-1/3" (DN16CF) Nipples 25
N/A
SBS832075S4-25
P.O.R. In Stock
Gasket Removal Tool All CF Nipples 1
N/A
VZGRT
$38.20 In Stock
4 oz. Tube Anti-Seize Thread Lube All CF Nipples 1
N/A
VZTL-4OZ
P.O.R. In Stock