Apex Vacuum

UV Fused Silica Con-Flat Flanges


UV Grade Fused Silica Viewport, Zero Length Profile, 2.69″ View Dia, 4.50″ Conflat Flange

  • UV Grade Fused Silica Windows
  • Bakeable to 200 degrees C
  • Non-magnetic Materials
  • Transmission for UV to 250nm
  • Compatible with UHV

More Information Below.



Fused Silica Viewports are available with diameters up to 8 inches and include zero length designs for low profile applications. These are all bakeable to 200˚C.

  • Flange Material: 304/316 Stainless Steel
  • Surface Finish: 40/20
  • Leak Rate: <2×10(-10) atm cc/sec He
  • Thermal Range: -100°C to 200°C
  • Transmission: >90% @ 250nm (external)

Additional information


3/4" UV Grade, 1.33CF, 1-1/2" UV Grade, 2.75CF, 1-1/2" UV Grade, 3.37CF, 2-1/2" UV Grade, 4.50CF, 2-1/2" UV Grade, 4.62CF, 4" UV Grade, 6.00CF, 4" UV Grade, 6.75CF, 6" UV Grade, 8.00CF, 8" UV Grade, 10.00CF

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