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Standard-Length Magnetic Viewports

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Magnetic / Standard-Length Viewports

Designed for direct visual observation of processes inside a vacuum chamber — AGP standard-length, magnetic, borosilicate glass viewports come fitted with Corning 7056 Type Borosilicate Glass windows, the most popular glass for the construction of vacuum-compatible viewports, and expansion matched Kovar (Ni-Fe-Co) transition tubes. Hermetically sealed using state-of-the-art glass-to-metal bonding technology, AGP glass viewports are available for both high and ultrahigh (UHV) vacuum applications to pressures of 1x10E-8, and 1x10E-10 Torr respectively.

Since glass is susceptible to scratching and inherently weak under point stresses, exercise extreme caution when handling glass viewports. The proper handling of glass viewports and components will minimize the chance of implosion hazard or injury.


  • Corning 7056 Type Borosilicate glass
  • Magnetic, expansion matched Kovar (Ni-Fe-Co) transition metal
  • High temperature rated from 200° to 350°C.
  • HV and UHV compatible materials
  • Conflat and ISO NW compatible mounts
  • Custom Solutions on Request