Viewports & Glass Components

Product catalog summary

Introduction
Glass viewports are cost-effective solutions for vacuum observation, utilizing advanced glass-to-metal bonding technology. Made from Corning type 7056 glass, they are suitable for high and ultrahigh vacuum applications and come in various flange types. Careful handling is required to avoid thermal stress and implosion hazards.

Quartz Viewports
Quartz viewports are designed for high vacuum applications, valued for UV transparency and thermal shock resistance. They should not be heated above 200°C due to the sealing alloy's melting point.

Sapphire Viewports
Made from synthetic single crystal material, sapphire viewports offer high temperature resistance and are suitable for demanding optical applications, with limitations in transmission below 0.25µm.

Pyrex® Viewports
Ideal for systems needing periodic glass replacement, Pyrex® viewports use a cushion gasket to prevent metal-to-glass contact and are suitable for high vacuum service.

Viewport Shutter Assemblies
These assemblies protect viewports in vacuum coating applications, featuring reliable rotary motion feedthroughs and positive position locks.

Glass Adapters
MDC offers various glass-to-metal adapters for attaching glass components to metal systems, using advanced seal technology.

VacOptix®
This line uses patented seal technology to accommodate exotic optical materials, offering a wide transmission spectrum from deep UV to far IR wavelengths.

Viewport Sealing Methods
Specific sealing methods are used for different materials like glass, quartz, sapphire, and Pyrex® to ensure vacuum compatibility and performance.

Viewports and Glass Components Overview
The document provides detailed specifications and descriptions of various viewports and glass components offered by MDC Vacuum Products Corporation, including their materials, configurations, and applications in vacuum systems.

1. Viewports Specifications
Specifications for several viewport models, including Zero Profile Quartz and Sapphire viewports, are listed. Key specifications include flange outer diameter, bolt circle diameter, view diameter, thickness, and weight.

2. Pyrex® Viewports
Described as economical and suitable for high vacuum chambers, Pyrex® viewports feature a weldable configuration for installation on custom-built stainless steel chambers.

3. Viewport Shutters
The VPS Series viewport shutters provide shielding for standard viewports, suitable for high and ultrahigh vacuum applications, and are bakeable to 230°C.

4. Glass to Metal Adapters
These adapters facilitate the attachment of glass accessories to metal vacuum systems and are bakeable to 400°C, suitable for cryogenic applications.

5. Bellows Adapters
Designed for vibrational absorption, bellows adapters are ideal for high heat and cryogenic applications.

Conclusion
The document provides comprehensive technical details on various viewports and glass components, highlighting their specifications, materials, and applications in vacuum systems.

Catalog excerpts

Quartz308 Sapphire309 Weldable Pyrex > 310 Viewport Doors307 Viewport Shields Shutters311 Glass Components Glass to Metal312 Double Ended314 Sealed Off315 Bellows Adapters316 > 301 size="-1">

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MDC glass to metal adapters provide ameans of attaching glass components to a metal vacuum system and or metal hardware to a glass system.These glass adapters are produced with the latest in glass-to-metal seal technology and are available in either Pyrex Glass Adapters > MDC 03 Section 5 9/27/03 1:44 PM Page 304 29-Nov-99 Pyrex > Viewports MDC Pyrex > ή viewports provide a convenientand economical solution for high vacuum systems requiring periodic glass substrate replacement.Some applications like vacuum coating will deposit coating materials on system viewports which will eventually render...

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31-Oct-0010-Apr-02 ULTRAHIGH & HIGH VACUUM SERIES > Del-Seal CF Kwik-Flange Nominal glass length Glass O.D. Wall thickness Overall length ٙ KF Nominal glass length Features ■ 7740 Pyrex > or optional type 7052 glass ΢֠ Type 304ss flange material > Glass O.D. Viewports & Glass Components ■ Metal or O-ring seal geometries ■ Kovar > or stainless steel sleeve ΢֠ Custom lengths available on request ■ Other configurations available on request > Wall thickness Overall length Description > MDC Glass to Metal Adapters facilitate the attachment of glassaccessories to metal high vacuum systems and to attach...

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Viewports & Glass Components MDC Vacuum Products Corporation www.mdcvacuum.com Phone 800-443-8817 >

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