Custom Capabilities

Dewar Flasks / Temperature Insulating Devices

Fredericks is a leading manufacturer of glass dewar flasks. These dewar flasks are used in advanced applications such as infrared detector assemblies, thermal imaging systems, and opto-electronics instrumentation. Fredericks dewar flasks are constructed utilizing many forms of glass-to-glass and glass-to-element sealing. Specialized techniques have been developed for sealing many uncommon materials, including: Kovar, Sapphire, Germanium, and Platinum.

Precision grinding, polishing, and sealing equipment have allowed Fredericks to achieve tolerances to less than .001”. Repeatability to the tightest specifications is a hallmark of Fredericks dewar flasks– stringent quality control procedures assure consistent performance.

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