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Vacuum Chamber Viewport Shutters

Viewport Shutters for Use in High Vacuum & Ultra High Vacuum Systems

Viewport shutters are normally installed on a vacuum chamber CF flange behind a viewport to protect against viewport coating in HV & UHV deposition applications. Pfeiffer Vacuum Valves & Engineering offers a complete line of viewport shutters for use in high vacuum and UHV systems. Our ISO 9001:2015-Certified viewports utilize a shutter to effectively shield the viewport surface and prevent the build-up of deposition materials. The shutter plate opens a full 90° by rotating the supplied all-metal rotary motion feedthrough and may be locked in position with a locking screw.
Our elite team of engineers can custom design, test and manufacture components based on your exact specifications, and our ISO 9001:2015-Certified manufacturing processes ensure your viewports parts are of the highest quality.
Contact us for more information about PV V&E's full line of vacuum viewport shutters. Need a custom quote? Click here or email today!

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Vacuum Chamber Viewport Shutters Features

  • 10⁻¹⁰ torr range
  • 304 SS flange material
  • CF flange sizes available 2.75 to 8 inches
  • Maximum bakeout temperature 150°C

Vacuum Viewport Shutter Features

Our standard viewports are designed for use with PV V&E's stainless steel vacuum viewports. Custom sizes and finishing options such as electropolishing are available upon request. Standard vacuum viewport shutter features include but are not limited to:
  • 10⁻¹⁰ torr range
  • 304 SS flange material
  • CF flange sizes available 2.75 to 8 inches
  • Maximum bakeout temperature 150°C

Vacuum Viewport Operation

These shutters are mounted behind a viewport to prevent the build-up of deposition materials on viewports while in the closed position. The knob allows you to adjust the viewport and keep the flapper open in a fixed position. They use a single plate shutter with a 90° opening rotation. An integrated PRM-133 rotary motion feedthrough provides smooth actuation and a positive locking screw. Please call for custom actuation options, such as motor drives or special flanges.

Viewport Shutter Sizes

Complete shield viewport shutter sizes are:
  • DN 40 CF (2.75" OD)
  • DN 63 CF (4.5" OD)
  • DN 100 CF (6" OD)
  • DN 150 CF (8" OD)

Viewport Shutter Advantages

Our shutter design features an overlapping baffle that completely shields the viewing glass when the shutter is closed. This prevents excess build-up from accumulating on the vacuum viewport, allowing the operator to have direct visual access into a vacuum chamber without compromising the integrity of the vacuum. These shutters prevent build-up that can result in costly window replacement. Viewport shutters also save time in vacuum processes as you don’t need to pause vacuum processes to clean material deposits on viewports. Viewport shutters can be fitted to most existing vacuum systems.
Use our Add-a-Doors to create your own system load lock. Specialized materials, including sapphire are also available.

Vacuum Viewport Applications

Vacuum viewport shutters are highly recommended for evaporation systems, sputtering systems and any vacuum processes, including degassing. Popular applications include:
  • Research laboratories
  • Equipment manufacturers
  • Energy and aerospace
  • Life and health sciences development

Vacuum Viewports Related Products

We offer a complete line of vacuum accessories that are compatible PV V&E vacuum systems. Featured products include fully annealed borosilicate 7056 glass or fused silica vacuum viewports for improved ultraviolet radiation transmission and resistance to thermal shock. Related products include:

Custom Viewport Shutters

Our elite team of designers and engineers is dedicated to producing the highest quality, ISO 9001:2015-Certified viewport shutters to meet your application requirements. We start with select grade 304 stainless steel to produce the highest-grade, corrosion-resistant viewport shutters. Our CNC machining and tube bending capabilities allow us to form close tolerances and manufacture custom components to your specifications. We can manufacture viewport shutters to meet low to high-volume orders and fulfill Ultra-Clean (UCV) components. PV V&E's manufacturing capabilities include electropolishing and cleanroom assembly and packaging services. Our additional strong in-house capabilities support the quality of our components and services in various areas, including Engineering, Logistics, and Quality Assurance.

Contact Us for Stainless Steel Viewport Shutters and Couplings

Request a custom quote or contact us online and let us find or customize the right viewport shutter to meet your needs!

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