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HomeGlass Tube AdaptersOpen, Dual-FlangeOpen / UHV CF Flange

Open / UHV CF Flange

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Open, Double-Ended Glass Adapters

Open, Dual-Flange Glass Adapters on CF Flanges

Open - Dual Flange Glass Adapters on CF Flanges


Magnetic Glass-to-Metal Tube Adapters

The process used in joining Corning 7052 Borosilicate glass (or equivalent) to an expansion-matched NiFeCo magnetic alloy such as Kovar is a highly specialized technology. Accu-Glass offers a wide selection of durable and reliable high and ultrahigh vacuum glass-to-metal tubular adapters. Our glass-to-metal adapters are available in rigid configurations and fitted with industry standard ISO or CF vacuum flange mounts. These adapters are designed for simple and reliable installation of 'tubular' laboratory glass instruments onto 'metallic' high and ultrahigh vacuum systems and/or the attachment of standard metal vacuum components onto glass laboratory apparatus. Double-ended flanged configurations with open interfaces are available. UHV rated adapters are fitted with Conflat® compatible, metal seal CF flanges, while HV rated devices use standard, elastomer seal, quick-release ISO flanges.


  • 1/2 to 2-1/2 Inch Glass Tube Diameters
  • Open Rigid CF Flange Interface
  • Corning 7052 (or equivalent) Borosilicate Glass
  • Magnetic Kovar (Nickel-Iron-Cobalt alloy) Transition Tubes
  • 304ss Conflat CF Compatible Mounts
  • Custom Solutions on Request