• Metaglas Type 79.ISO-K

Metaglas Type 79.ISO-K

  • Product Code: Metaglas Type 79.ISO-K

METAGLAS® Type 79.ISO-K — Ultra-High Vacuum Sight Glass Assembly

The METAGLAS® Type 79.ISO-K sight glass is engineered for ultra-high vacuum (UHV) environments, delivering the highest levels of mechanical integrity, optical clarity, and contamination-free performance. Manufactured with glass fused into a stainless-steel ring under permanent compressive stress, this design provides unmatched safety and durability compared to conventional vacuum viewports.

Standards & Compatibility

  • Connection Standard: ISO-K to DIN 28404 and ISO 1609
  • Fully UHV-Compatible: Suitable for ultra-high vacuum applications requiring low outgassing
  • Material Grade: Typically stainless steel for superior cleanliness and thermal stability
  • Mounting: Fits ISO-K clamp systems for rapid installation and removal

Key Performance Advantages

  • Extreme Vacuum Integrity: Zero risk of implosion thanks to fused-metal compression design
  • Minimal Outgassing: Ideal for high-purity processes and vacuum-sensitive systems
  • Optical Quality: High-purity borosilicate ensures distortion-free viewing
  • Thermal and Mechanical Stability: Maintains seal integrity under temperature cycling and vibration
  • Long Service Life: Resistant to stress, fatigue, and chemical attack

Typical Applications

  • Ultra-high vacuum chambers
  • Research and laboratory vacuum systems
  • Semiconductor manufacturing
  • Plasma processes
  • Analytical instrumentation
  • Sterile or contamination-controlled environments
Why Choose METAGLAS® for UHV?
  • Industry-leading safety — no unexpected fracture or catastrophic failure
  • Exceptional visibility for diagnostics and monitoring
  • Precision-built to international vacuum standards
  • Proven performance in aggressive and sensitive environments

Specify METAGLAS® Type 79.ISO-K when your vacuum system demands uncompromising clarity, reliability, and contamination-free performance.
Our engineering team can advise on sizing, sealing materials, and integration into your vacuum architecture.

Technical Specifications:


Tags: Metaglas Type 79 ISO-K, ISO-K sight glass, ultra high vacuum sight glass, metal-fused sight glass ISO-K, hygiene sight window, John Moncrieff Metaglas Type 79