1. Introduction The Liquid Nitrogen (LN₂) cooled cryogenic pump is designed for high-vacuum generation in large space simulation and thermal vacuum (TVAC) chambers. Operating at 77 K using Liquid Nitrogen, the system provides high pumping efficiency for water vapor and condensable gases, which dominate residual gas load in large aerospace vacuum facilities. This solution is optimized for spacecraft qualification, payload validation, and propulsion system testing where contamination control...

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In the realm of research and industrial applications that involve vacuum systems, the importance of precise control and regulation cannot...