Vacuum & Cooling

We have a very good experience with the new Helium hose for the PTR installed in November 2013. It is more flexible than the old hoses. We are using a pair of hoses for the supply and return flow of helium, and initially the idea was to buy one extra hose, to always have a spare ready to exchange. Our experience over the last half year is, however, that the old hoses tend to break more and more easily, up to once per month, requiring exchange and time-consuming repair. A new hose was purchased and installed in February. Since then we are running with two hoses of the same ultra-flex type. The old hoses were repaired, cleaned and refilled and are ready for use as spares.