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Flanges & Components > Viewports & Shutters > ConFlat (CF) Flanged Viewports

CF Flanged Zero Length Kodial Glass Viewports

These zero-length CF flanged glass viewports are available in several different Kodial glass coatings to suit a variety of applications. Viewports can be used to: let the operator view a process; initiate chemical or physical action using specific wavelengths; make measurements of emissions occurring in a process; or to monitor the effects of specific wavelengths (ellipsometry).

CF Flanged Glass Viewports Feature:

  • UHV compatible
  • Large, distortion-free viewing area with no interior voids ensures no virtual leaks nor trapped dirt
  • Optical discs are commercial-grade, fully annealed Kodial glass (alkali borosilicate 7056)
  • Kodial glass is sealed to a Kovar metal transistion piece before welding to a 304L stainless steel CF flange
  • Can withstand repeated bakeout cycles to 350° C (heating rate should not exceed 2-3° per minute)

NOTE: All viewports are fragile and should be handled and mounted with extreme caution. CF flanged viewports require a fully annealed copper gasket. Never scratch the viewing area—a weakened viewport may implode (or explode under wrong conditions). Make sure the "glass" chosen has a reasonable transmission at the wavelengths of interest. And remember, what is not transmitted may be reflected or absorbed.

Viewport Cleaning Procedure Guide For a guide on Viewport Cleaning Procedures, please click here.


Dimensional Drawings

Charts

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
Size/OD
Type Feature Flange
Thickness
Glass
Thickness
View
Area
PartNo Price Add Item
VacuCADSM
Flange
Size/OD
Type Feature Flange
Thickness
Glass
Thickness
View
Area
PartNo Price Add Item
VacuCADSM
10" Kodial Standard 0.97 0.32 5.35
VPZL-1000
$877.00
(please log in)
1-1/3" Kodial Standard 0.5 0.06 0.63
VPZL-133
$119.00
(please log in)
1-1/3" Kodial AR Coating Optimized @ 550nm 0.5 0.04 0.63
VPZL-133AR
$315.00
(please log in)
1-1/3" Kodial Broad Band AR Coating, 400-600nm 0.5 0.04 0.63
VPZL-133BBAR
$727.00
N/A
1-1/3" Kodial ITO Coating 0.5 0.04 0.63
VPZL-133ITO
$382.00
(please log in)
1-1/3" Kodial Lead Glass Disc 0.5 0.04 0.63
VPZL-133LG
$222.00
N/A
2-1/8" Kodial Standard 0.5 0.06 0.63
VPZL-212
$109.00
(please log in)
2-3/4" Kodial Standard 0.5 0.12 1.5
VPZL-275
$114.00
(please log in)
2-3/4" Kodial AR Coating Optimized @ 550nm 0.5 0.1 1.3
VPZL-275AR
$366.00
(please log in)
2-3/4" Kodial Broad Band AR Coating, 400-600nm 0.5 0.1 1.3
VPZL-275BBAR
$387.00
N/A
2-3/4" Kodial ITO Coating 0.5 0.1 1.3
VPZL-275ITO
$408.00
(please log in)
2-3/4" Kodial Lead Glass Disc 0.5 0.1 1.3
VPZL-275LG
$258.00
N/A
3-3/8" Kodial Standard 0.63 0.14 1.9
VPZL-337
$134.00
(please log in)
4-1/2" Kodial Standard 0.68 0.14 2.5
VPZL-450
$222.00
(please log in)
4-1/2" Kodial AR Coating Optimized @ 550nm 0.68 0.12 2.5
VPZL-450AR
$460.00
N/A
4-1/2" Kodial Broad Band AR Coating, 400-600nm 0.68 0.12 2.5
VPZL-450BBAR
$1,046.00
N/A
4-1/2" Kodial ITO Coating 0.68 0.12 2.5
VPZL-450ITO
$505.00
N/A
4-1/2" Kodial Lead Glass Disc 0.68 0.12 2.5
VPZL-450LG
$418.00
N/A
4-5/8" Kodial Standard 0.75 0.14 2.5
VPZL-463
$243.00
(please log in)
6" Kodial Standard 0.78 0.24 3.5
VPZL-600
$407.00
(please log in)
6-3/4" Kodial Standard 0.84 0.24 3.5
VPZL-675
$1,025.00
N/A
8" Kodial Standard 0.88 0.32 5.35
VPZL-800
$567.00
(please log in)
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 Weight lbs (kg) Manual PartNo Price Add Item
VacuCADSM
Description For Per Package Weight lbs (kg) Manual PartNo Price Add Item
VacuCADSM
Viewport Shutters (Manual)
VPZL-275 Viewport
1
n/a
--
DS275VPS
$1,000.00
(please log in)
Viewport Shutters (Pneumatic)
VPZL-275 Viewport
1
n/a
--
DS275VPS-P
$1,747.00
(please log in)
Viewport Shutters (Manual)
VPZL-450 Viewport
1
n/a
--
DS450VPS
$1,092.00
(please log in)
Viewport Shutters (Pneumatic)
VPZL-450 Viewport
1
n/a
--
DS450VPS-P
$1,829.00
(please log in)
Viewport Shutters (Manual)
VPZL-463 Viewport
1
n/a
--
DS462VPS
$1,195.00
(please log in)
Viewport Shutters (Pneumatic)
VPZL-463 Viewport
1
n/a
--
DS462VPS-P
P.O.R.
(please log in)
Viewport Shutters (Manual)
VPZL-600 Viewport
1
n/a
--
DS600VPS
$1,221.00
(please log in)
Viewport Shutters (Pneumatic)
VPZL-600 Viewport
1
n/a
--
DS600VPS-P
P.O.R.
(please log in)
Viewport Shutters (Manual)
VPZL-800 Viewport
1
n/a
--
DS800VPS
$1,242.00
(please log in)
Viewport Shutters (Pneumatic)
VPZL-800 Viewport
1
n/a
--
DS800VPS-P
P.O.R.
(please log in)
VHV Shutter Actuator (Ferro Magnetic Fluid Sealed)
CF Flange
1
n/a
--
EJSAPVHV
P.O.R.
(please log in)
1/4—28 x 1-3/8" Bolt & Nut Set
2-1/8" (DN25CF)
25
1 (0.45)
--
HBS25028138
$30.30
(please log in)
1/4—28 x 1-3/8" Bolt & Nut Set
2-3/4" (DN35-DN40CF)
25
1 (0.45)
--
HBS25028138
$30.30
(please log in)
5/16—24 x 1-3/4" Bolt & Nut Set
3-3/8" (DN50CF)
25
2 (0.91)
--
HBS31224175
$39.00
(please log in)
5/16—24 x 2" Bolt & Nut Set
4-1/2" (DN63CF)
25
2 (0.91)
--
HBS31224200
$33.00
(please log in)
5/16—24 x 2" Bolt & Nut Set
4-5/8" (DN75CF)
25
2 (0.91)
--
HBS31224200
$33.00
(please log in)
5/16—24 x 2" Bolt & Nut Set
6" (DN100CF)
25
2 (0.91)
--
HBS31224200
$33.00
(please log in)
5/16—24 x 2-1/4" Bolt & Nut Set
6-3/4" (DN125CF)
25
2 (0.91)
--
HBS31224225
$39.00
(please log in)
5/16—24 x 2-1/4" Bolt & Nut Set
8" (DN160CF)
25
2 (0.91)
--
HBS31224225
$39.00
(please log in)
5/16—24 x 2-1/2" Bolt & Nut Set
10" (DN200CF)
25
2 (0.91)
--
HBS31224250
$29.90
(please log in)
3/8—24 x 3" Bolt & Nut Set
13-1/4" CF
30
4 (1.81)
--
HBS37524300
$48.00
N/A
Leaded Glass Protection Disc
VPZL-133 Viewport
1
n/a
--
VPZL-133LGD
P.O.R.
N/A
Leaded Glass Protection Disc
VPZL-275 Viewport
1
n/a
--
VPZL-275LGD
$70.00
(please log in)
Leaded Glass Protection Disc
VPZL-450 Viewport
1
n/a
--
VPZL-450LGD
$100.00
N/A
Leaded Glass Protection Disc
VPZL-600 Viewport
1
n/a
--
VPZL-600LGD
P.O.R.
N/A
Leaded Glass Protection Disc
VPZL-800 Viewport
1
n/a
--
VPZL-800LGD
$340.00
N/A
Fully Annealed Copper Gasket
6" (DN100CF)
5
1-1/2 (0.68)
--
VZCUA100
$32.00
(please log in)
Fully Annealed Copper Gasket
8" (DN160CF)
5
2 (0.91)
--
VZCUA150
$50.00
(please log in)
Fully Annealed Copper Gasket
1-1/3" (DN16CF)
5
1/4 (0.11)
--
VZCUA19
$15.00
(please log in)
Fully Annealed Copper Gasket
10" (DN200CF)
5
3 (1.36)
--
VZCUA200
$66.00
(please log in)
Fully Annealed Copper Gasket
2-1/8" (DN25CF)
5
1/4 (0.11)
--
VZCUA25
$20.20
N/A
Fully Annealed Copper Gasket
2-3/4" (DN35-DN40CF)
5
1/4 (0.11)
--
VZCUA38
$21.30
(please log in)
Fully Annealed Copper Gasket
3-3/8" (DN50CF)
5
1/2 (0.22)
--
VZCUA54
$24.60
N/A
Fully Annealed Copper Gasket
4-1/2" (DN63CF)
5
3/4 (0.34)
--
VZCUA64
$26.60
(please log in)
Fully Annealed Copper Gasket
4-5/8" (DN75CF)
5
1 (0.45)
--
VZCUA76
$27.90
N/A
Gasket Removal Tool
All CF Flanges
1
1/4 (0.11)
--
VZGRT
$38.00
N/A
4 oz. Tube Anti-Seize Thread Lube
All CF Flanges
1
1/4 (0.11)
--
VZTL-4OZ
P.O.R.
N/A

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