Alundum® fused Al2O3 and Magnorite®-fused MgO crushable thermocouple insulators from Saint-Gobain provide thermal and electrical insulation resistance in swaged or drawn metal sheathed thermocouples. Insulators are carefully threaded on thermocouple conductor wires and inserted inside seamless metal tubing. The entire assembly is then swaged, or drawn down, to the desired dimensions. During swaging, the insulators readily crush into powder that is compacted around the wires to provide electrical insulation.
Crushable insulators from Saint-Gobain can be manufactured in many configurations. Crushable ceramic, high-purity materials and rigidly controlled physical and chemical properties ensure thermocouple accuracy.
Crushable insulators are offered in standard diameters from 0.56mm to 12.70mm, in lengths from 25mm to 102mm, with one to four holes. Custom variations can be developed in virtually any configuration. With high-purity crushable ceramic insulators from Saint-Gobain, you can produce more accurate thermocouples to meet aerospace industry demands.