Specifications
5-1
Section 5: Specifications
5.1 Intended use of equipment
The Cryomech Helium Reliquefier is designed to recondense the boil off from liquid
helium dewar/cryostats, and then return the Liquid Helium to the dewar/cryostat
establishing a closed Helium loop. It can be installed into cryostats already full of liquid
helium or be utilized to liquefy helium gas from gas cylinder to fill a dewar.
5.2 Technical specifications
CAUTION
Operation of the helium reliquefier in any situation that does not meet the
specifications in this section will void the warranty. If you plan to operate the system
outside any of the specified conditions, contact Cryomech.
5.2.1 Weights and dimensions
Parameter Value
Reliquefier Weight: 87 lbs. 39.4 kg.
Dimensions (L x W x H) See Appendix A for outline drawing
Helium Reliquefaction Capacity
≥15 L/day from room temperature gas
≥27 L/day from cryostat helium boil-off
5.2.2 Cooling water specifications
Parameter Value
Cooling Water: minimum flow @
maximum temperature
See Figure 5-1
Maximum Inlet Pressure 110 PSIG / 7.6 bar
Alkalinity 5.8 < pH < 8.0
Calcium Carbonate Concentration < 80 PPM
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