INSEALING‘s isolators are mainly used in vacuum systems that require insulation at both ends to achieve insulation, sealing, and isolation. Connect ceramic/glass to metal. One end is made of metal, and the other end is made of ceramic or glass material, which can serve as a transition connection or ionization vacuum chamber.

INSEALING‘s isolators are made from high-purity alumina ceramics (95% or better) or glass. The metal hardware is generally a controlled-expansion nickel-iron alloy, 304 stainless steel, or copper. 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 using copper, gold-copper, or silver-copper alloys.

INSEALING‘s uses advanced techniques and methods to control and monitor critical processes, including 100 percent helium leak testing and x-ray measurements for metalization control. Standard installation mountings for isolators include:

  • Welding (pulse-TIG, TIG, laser, E-beam welding)
  • ISO KF flange
  • ConFlat flange


  • Semiconductor processing equipment
  • Particle accelerators
  • Furnaces
  • Analysis equipment
  • Beam line tubes
  • Aerospace
  • Telecommunications