ConFlat (CF) Sight Windows
Select Stock Configurations Below
  • CF (ConFlat™) - simple, flanged High Vacuum sight glasses
  • Exhibits no outgassing or contamination of most systems*
  • Long working life
  • No maintenance required
  • Tested to high safety factor to insure safety & reliability
  • Exceeds all industry and MIL standards
  • Engineered, Manufactured and tested at the Rayotek U.S. facility


CF (ConFlat™) flange sight windows are used for clean, ultra high vacuum and low pressure applications. Designed specifically for applications where cleanliness, chemical resistance and/or process control are critical. The window material is fused or bonded to a stainless steel housing forming a hermetically sealed single-piece part. The advantage of this construction is a simple, clean, easy to install sight window.

Click Configuration for specifications and part numbers.

Configuration
Application
Temperature Range
General purpose indicator & observation. NACE MR0175/ISO15156 compliant
0 Kelvin - 400C
General purpose flat window for imaging and precision optical measurement
0 Kelvin – 200C
Optical quality, extreme scratch and chemical resistance for UV, visible and IR viewing
0 Kelvin - 200C
Optical quality for IR viewing & imaging
-40C - 200C
Optical quality for DUV to near IR viewing & imaging
0 Kelvin - 200C

Applications:

  • Semiconductor processing equipment
  • Pharmaceutical & chemical processing
  • Precision observation & measurement systems
  • Precision observation & measurement systems
  • Cryogenic & super critical applications
  • Ultra high vacuum equipment for research & industry


Rayotek sight windows can transmit a broad range of wavelengths and are capable of operating under extreme temperature, pressure, chemical and mechanical conditions. The selection of window and housing materials will determine capabilities.

==========================================================================================
Footnotes:
† Alternative materials are available upon request including, but not limited to:
        Housing: duplex, aluminum, Monel, Inconel, plastics and alumina
        Window: borosilicate (Pyrex®), diamond, Zinc Selenide, fused silica, germanium, MgF2, silicon and YAG

*  For systems where purity & cleanliness are critical, Rayotek recommends testing the Sight Window for specific chemical compatibility.
    Call for information.

** Typical leak rate is 10-8 bar-CC/sec. for air at 22C. Actual leak rate TBD based on window size and maximum operating temperature.
    Call for information.

CF (ConFlat™) Sight Glass Conversion Table Metric to Inches

European, Asian size

North American size [inches]

DN10

1

DN16

1 1/3

DN25

2 1/8

DN40 (or: DN35)

2 3/4

DN50

3 3/8

DN63

4 1/2

DN75

4 5/8

DN100

6

DN125

6 3/4

DN160 (or: DN150)

8

DN200

10

DN250

12

 

13 1/4

 

14

 

16 1/2

 

Contact Us with questions or to discuss your requirements and we'll be happy to help