Apex Vacuum

UV Fused Silica Viewport Quick Flange


UV GradeFused Silica Viewport, 1.40″ View Dia, 2.16″ Quick 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


QF25, QF40, QF50

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