--- title: "Feedthroughs" canonicalUrl: "https://mpfpi.com/faq-category/feedthroughs/" dateModified: "2026-07-28T16:06:35+00:00" --- Feedthroughs Archives - MPF Products, Inc. # Feedthroughs ### [How do high-quality vacuum feedthroughs prevent virtual leaks?](https://mpfpi.com/faq/how-do-high-quality-vacuum-feedthroughs-prevent-virtual-leaks/) Premium vacuum feedthroughs utilize specialized geometry and blind-hole venting to completely eliminate trapped pockets of atmospheric gas. Combining these design methodologies with high-purity ceramic-to-metal brazing prevents outgassing and virtual leaks, allowing systems to reach ultra-high vacuum (UHV) thresholds efficiently without downstream contamination. [Read More](https://mpfpi.com/faq/how-do-high-quality-vacuum-feedthroughs-prevent-virtual-leaks/) ### [What critical parameters must be evaluated when selecting a chamber feedthrough?](https://mpfpi.com/faq/what-critical-parameters-must-be-evaluated-when-selecting-a-chamber-feedthrough/) Selecting a feedthrough requires identifying your transmission medium (power, signal, fluid, or motion), maximum voltage/current loads, operational temperature limits, and your system’s vacuum level (HV vs. UHV). Additionally, you must cross-reference physical envelope constraints and material compatibility with reactive process gases to ensure longevity. [Read More](https://mpfpi.com/faq/what-critical-parameters-must-be-evaluated-when-selecting-a-chamber-feedthrough/)