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Electrical Isolators, consist of metal sleeves brazed to each end of an insulating ceramic tube. They are used to introduce cryogenic fluids into a system and to provide electrical isolation of line components. Vacuum isolators are used to provide an electrical break between the vacuum system and other external components.
SGJ isolators typically are made from high-purity alumina ceramics and Metals. The metal hardware is generally a controlled-expansion Kovar 4J33, SUS 304 or OFHC Copper TU1. All materials and braze alloys used are chosen for their specific characteristics and ability to maintain the integrity of the seals for use in demanding applications and environments. The assemblies are brazed together with Silver Copper Eutectic Alloy.
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