Accu-Glass Products' Glass Vacuum Viewport Flanges are designed for all general purpose uses such as the direct observation of processes in a vacuum chamber. The glass used in the vacuum viewport is Corning Type 7056 glass, which is the most common material used for vacuum viewports. Accu-Glass Products' glass viewports are designed for both high and ultrahigh (UHV) vacuum applications, using the latest in glass-to-metal bonding technology to seal the 7056 glass to the stainless steel or nickel-iron alloy sleeves.
Since glass is susceptible to scratching and weak under point stresses, caution must be exercised when handling viewports to minimize the chance of implosion hazard.
High Transmission Glass 7056 Vacuum Viewports