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Weldable Vacuum Ceramic Breaks


  • Designed and rated for high and ultra-high vacuum applications
  • Constructed of vacuum-grade materials, including high-purity alumina ceramic insulation, 304 stainless steel or low-expansion Kovar weldable lips, and vacuum grade braze alloys
  • CF flanged breaks feature one fixed and one rotatable flange (through-hole bolt holes)
  • Available in tube sizes ranging from 1/2" to 8" nominal diameters
  • Larger-diameter assemblies have tapered seals to minimize stress caused by differential expansion during thermal cycling
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  • The electrical and thermal ratings specified are of safe operating limits determined by various factors including material properties, mechanical design, and the intended operating environment. All electrical ratings are based on operation with one side in dry atmosphere and the other side in vacuum of less than 1 x 10-4 Torr. All VacuCAD files as well as any dimensions shown or listed in our ordering tables do not include manufacturing tolerances and are provided for reference only.

Ordering Table

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Feedthrough Selection Guide
Feedthrough Selection Guide
Finding the right feedthrough has never been easier with our step by step Feedthrough Selection Guide. You can narrow down our feedthrough offering by simply choosing from a variety of different options suitable to your requirements. If you can't find the feedthrough you need or want a custom configuration, please contact us by clicking here or call +1 412 387 9200 with your inquiry.
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