ConFlat (CF) Sight Window: Fused Silica Bonded into 316 Stainless Housing
 
  • Housing Material: 316 Stainless
  • Window Material: Fused Silica Glass
  • Temperature operating range: 0 Kelvin to 200C
  • Pressure safety factor: Minimum 1.25x
  • Thermal shock resistance: Good
  • Impact resistance: Good
  • Leak Rate: Equivalent to the permeation rate through glass (~zero)
  • Chemical resistance: Excellent for solvents, must be tested for specific acids and corrosives

All Rayotek ConFlat (CF) sight window metal housings are CNC machined, not cast, to exacting standards. Metal and window materials for all of our sight windows are traceable and certified back to their raw material sources to insure the highest, repeatable quality and reliability.

For configuration and applications outside of the scope of this sight window page please see our Custom Sight Window page or contact Rayotek Sight Windows directly to speak with a representative or engineer.


316 Stainless Steel ConFlat™ (CF) Housing With Fused Silica (SiO2) Bonded Optical Window:

Using proprietary adhesive bonding systems, Rayotek seals a fused silica (SiO2) window into Stainless steel housing for a UV, visible and near IR transparent sight window that is heat resistant up to 200C in many environments. Fused silica has a transmission range from .18 micron to 3.5 microns. Our applicable sealing systems are NASA low outgassing approved for high vacuum systems and aerospace applications.


CF SIZE
(in)
FLANGE DIAM. (in)
FLANGE DIAM. (mm)
Clear Aperture (in)
Clear Aperture (mm)
Maximum* Pressure (PSI/BAR)
Internal (IP), External (EP) or Vacuum (VAC)
1 1/3
1.33
33.8
0.63
16.0
45/3
EP, VAC
2 1/8
2.13
54.1
0.83
21.0
45/3
EP, VAC
2 3/4
2.75
69.9
1.50
38.0
45/3
EP, VAC
3 3/8
3.38
85.9
1.73
44.0
45/3
EP, VAC
4 1/2
4.50
114.3
2.38
60.5
45/3
EP, VAC
4 5/8
4.63
117.6
2.68
68.0
45/3
EP, VAC
6   
6.00
152.4
3.50
89.0
45/3
EP, VAC
8   
8.00
203.2
5.35
136.0
45/3
EP, VAC
10   
10.00
254.0
7.09
180.0
45/3
EP, VAC


* Conflat flanges are designed for vacuum systems only, not pressure systems.
Customer is responsible for safe design and use of sight windows.

Contact Rayotek Sales for higher temperature Conflat Sight Windows

Back to ConFlat (CF) Configuration Page.