Since 1958 Thermionics has designed, developed, and manufactured ultra high vacuum (UHV) equipment for scientific and industrial applications. Our products are the result of careful research and development, rigorous testing, and continuing performance evaluation.

Our product lines include:

High Vacuum Pumps
Manipulators and Mechanical Feedthroughs
Vacuum Coating Systems
Flanges and Fittings
PyraFlat and TriMetal Flanges
Mechanical Feedthroughs
Electrical Feedthroughs
Vacuum Pressure Gauges
Helium Leak Detectors


Vacuum Equipment


231-B Otto St.
Port Townsend, WA 98368

Contact Person:

Cheryl Gonzalez
(360) 385-7707

For more information or any questions about Made in Washington, please contact Jessica Ingle at (425) 438-1146 x109 or

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