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Compression seals

Compression seals are common glass to metal seal, exhibiting high mechanical strength and being ideally suited for applications in which may encounter high stresses or pressures during it use.

A compression glass to metal seal is designed with the housing’s co-efficient of thermal expansion higher than that of the glass. During the solidification phase of glass; after the melting process, the shell contracts around the glass, putting the glass into compression.

This technology is used in a wide variety of applications and designs, generally constructed using steel, stainless steel or Inconel housings and nickel iron pins. For other material combinations please contact us.

Some critical, specialist applications that utilise compression glass to metal seals can be found in harsh and demanding environments; pressure sensors or transducers, military, automative and aerospace applications.