ULTRA non-return valve at Sorbonne

The Service des Basses Températures (SBT) (Cryogenic Services Team) at the Pierre and Marie Curie Campus of Sorbonne University has significantly increased its helium recovery rate by using the ULTRA 12 non-return valve from WITT. This leads to significant cost savings and conserves a valuable resource. The valve’s low opening pressure and minimal pressure drop make it ideal for demanding research environments.

The SBT is responsible for supplying research laboratories with the necessary cryogenic liquids, such as nitrogen and helium. A particular focus is placed on the recovery of helium gas for reliquefaction. In this regard, the ULTRA 12 non-return valve from WITT has proven to be extremely valuable. By using this valve, the helium recovery rate was increased from 80% to 90%, resulting in substantial cost savings and conserving an increasingly scarce largely fossil-derived resource.

The ULTRA 12 valve was chosen for its low opening pressure of only 4 mbar and minimal pressure drop. These technical advantages make it particularly suitable for use in demanding research environments. The Service des Basses Températures recommends this high-quality valve, especially for expensive research equipment such as NMR devices.