Ultra low-temperature cascade refrigeration system repair https://tube.loping.net/videos/watch/c91cbfe0-c1a3-4b9b-8956-bb7883843179 I bought a -100*C refrigerated cold trap from a surplus sale, which was not operational. In this video, I describe how the unit works after recharging its second stage with R1150 (ethylene) refrigerant. Savant RVT4104 - (manual) http://phoenix.tuwien.ac.at/chemistry/Gebrauchsanweisungen/SAVANT%20Vapor%20Trap.pdf Sun, 12 Jul 2026 09:52:37 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.loping.net Ultra low-temperature cascade refrigeration system repair https://tube.loping.net/lazy-static/avatars/8a56e488-2120-4649-a417-badf5893657b.png https://tube.loping.net/videos/watch/c91cbfe0-c1a3-4b9b-8956-bb7883843179 All rights reserved, unless otherwise specified in the terms specified at https://tube.loping.net/about and potential licenses granted by each content's rightholder.