Types of vacuum viewports

Viewports are used in the industrial and science industry to create visuals, optical or energy transmissions in vacuum systems. Typically, these are designed to create properties that are high of quality and reliable to ensure there is a minimum leakage level. See: Science Funding.

UHV Viewports

Ultra-high vacuum viewports use window materials such as Zinc, Magnesium and Calcium Fluoride to ensure they are metal-sealed to provide an extremely leak-tight fastening.

The viewport windows are mounted into CF flanges and are available in a range of sizes depending on the vacuum system requirements.

Moores Glass custom design vacuum viewports that meet will your requirements. With over 40 year’s experience, they are experts in manufacturing industrial glass. They export their industrial glass works to over 7 countries, including North America, Australia and Hong Kong as well as Europe. See: UHV Viewport Flanges.

Fused Silica Vacuum Viewports

Manufactures often prefer fused silica rather than glass because of the transparency levels to ultraviolent radiation, low coefficient to thermal expansion meaning they are resistant to thermal shock and their higher abrasion resistance properties. The grade material is suitable for most applications. Find out about the properties of fused silica, click here.

Pyrex Viewport

Pyrex glass viewports are mounted onto aluminium and are then welded into high vacuum aluminium chamber walls. These viewports are typically lightweight and more affordable choice compared to steel designs. Discover more about glass and the manufacturing process.

The glass is captured between elastomer O-rings that provides a cushion to deter from glass-to-metal contact. The other O-ring is used as a vacuum seal. Get in touch.