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Feedthrough Baseplate Coupling Plugs

Feedthrough couplings and coupling plugs suit vacuum walls thicker than 1/4" and thinner than 1-1/4". Feedthrough couplings connect a tube to a chamber at a standard 1" baseplate port; coupling plugs are used to blank-off the feedthrough coupling.

Feedthrough Couplings & Plugs Feature:

  • Change to: Available in aluminum and stainless steel (coupling plugs only).
  • Feedthrough couplings mount in the baseplate port with the o-ring on the inside of the chamber. The tube connects into the feedthrough coupling with a compression o-ring or a female NPT fitting.
  • Coupling plugs come complete with the necessary o-rings to seal and blank-off a feedthrough coupling
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  • We recommend using a high quality thread lubricant on all stainless steel threads (sold below).

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Flange Selection Guide
With a variety of flanges to choose from, the Flange Selection Guide is designed to help you find one to meet your vacuum requirements. Shop Now!
Can't find the flange you need or want a custom configuration? Please call us at +1 412 387 9200 or email with your inquiry.
Contact Us - Feedthrough Baseplate Coupling Plugs