Compressor Seals for Refrigeration & Air Conditioning

Product Description

Glass-to-metal compressor seals are terminals applied to compressors for refrigerators and air-conditioning units. With the use of special glass materials, our refrigerant compressor seals and AC compressor terminal components can withstand both high pressure and high electrical loads.

Each refrigerant compressor seal consists of a metal base, multiple lead-pins, and glass insulation tablets. The main material of the glass tablet is customized soda barium glass, which offers high electrical insulation properties. On request, we are able to offer welding services for the terminals on top of their lead-pins. Our refrigerant compressor seals can also be designed as free directional welding terminals with air and pressure tightness.


We provide glass-to-metal compressor seals with outstanding properties for high performance and reliability, including:
  • ability to withstand high pressure
  • special glass with high electrical strength


Our hermetic compressor products are used in applications such as refrigerators and air conditioners.

Technical Details


Our refrigerant and AC compressor terminals are hermetically sealed. For more information about our glass-to-metal sealing technology (GTMS), please visit this page. You can also find information about our GTMS products from our GTMS brochure.

Features / Specifications
Base Steel
Lead FE/CR
Glass Soda Barium glass
Finish Nickel plating

GTMS compressors with free direction terminal plates are also available.
Forms of Supply and Product Packaging

Standard forms of supply are available. Please contact our sales department if you have special requests concerning supply and packaging.


All of our glass-to-metal sealing products are manufactured in our ISO 9001/14001 certified plant, the quality assurance standard of ISO. For more information, please click here.
Exhibitions & Events
Exhibition CIOE - China International Optoelectronic Exposition, Shenzhen, China, 09-01 to 09-03-2021
Exhibition Gastech, Singapore, Singapore, 09-13 to 09-16-2021
Electronic Packaging
SCHOTT North America, Inc.

15 Wells Street
Southbridge, MA 01550
E-Mail to SCHOTT+1 (508) 765-7450
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