
Liquefication | Recovery
Construction of a VL100 helium liquefier 20 l LHe with recovery system at the INFN Gran Sasso

New construction of a helium liquefaction plant incl. helium recovery
- Scope of supply helium liquefaction plant
- Cycle compressor air cooled
- Oil remover system with gas management panel
- Coldbox including expansion turbines and freeze-out purifier
- Gas dryer
- Transfer line from liquefier VL100 to stationary LHe Dewar
- Transfer line from LHe Dewar to mobile Dewars
- MSR technology
- LHe Dewar 3.000l
- Pure Gas Buffer: 1x 4.000 l @16bar
- Scope of supply Helium recovery system
- High-pressure compressors 1x WP4351 (87 Nm³/h)
- Integration of existing high pressure compressor
- Analysis Panel Type 7
- Gas Balancing HP/LP with O2-Sensor
- Helium-Balloon 15m³
- Oil Remover System
- High-pressure distribution Panel
- 10x High-pressure Storage - 10xbundle á 12x50l @200bar
- Automatic distribution of the helium via high-pressure panels
- Installation of all system components
- Commissioning of the entire system
- Pure gas piping in the building
- Maintenance of ongoing operation during the conversion and new construction phase, no significant losses
Realization date
10/2025Performance data
- Liquefaction Rate: 20 l LHe/h without LN2 pre-cooling
- Compressor el. consumption: 56 kW
Contact
Laboratori Nazionali del Gran Sasso
Via G. Acitelli, 22
67100 Assergi L’Aquila - Italien







































