ULVAC offers ultra-high vacuum flanges (fixed, rotatable, conversion), ultra-high vacuum zero length viewing windows, current feedthroughs, etc.

Ultra-High Vacuum Zero-Length Viewing Ports TVU-FV Series
The TVU-FV Series are viewing ports with a wide field of view. They enable observations of ultra-high vacuum in vacuum containers, from the atmosphere side. 

Ultra-High Vacuum Flanges UFC Series
The UFC Series are knife-edge metal-seal bake able flanges for ultra-high vacuums.UFC flange is fully compatible with ICF flange

Ultra-High Vacuum Zero-Length Viewing Ports TVU-FV Series
The TVU-FV Series are viewing ports with a wide field of view. They enable observations of ultra-high vacuum in vacuum containers, from the atmosphere side. 

Ultra-High Vacuum Linear Feedthroughs TSU Series
The TSU Series are linear feedthroughs enabling objects in vacuum chambers at ultra-high vacuum pressure to be moved linearly from the vacuum system’s atmosphere side.

Ultra-High Vacuum Zero-Length Reducer Flanges UFC Series
Ultra-high vacuum conversion flanges are used to connect UFC flanges of different sizes. (UFC flanges are knife-edge metal-seal bakeable flanges for ultra-high vacuums.)

Ultra-High Vacuum Rotary Feedthroughs TDU Series
The TDU Series are rotary feedthroughs enabling objects in vacuum chambers at ultra-high vacuum pressure to be rotated manually.

Electrical Feedthroughs CMS Series
The CMS Series are electrical feedthroughs for passing current and applying voltage to vacuum chambers with pressure ranging from atmospheric pressure to ultra-high vacuum.