PRINCIPLES of OPERATION
9
Figure 1 Compressor Flow Diagram
TSG Gas temperature thermistor
TSWi Water-in temperature thermistor
TSWo Water-out temperature thermistor
ARV Atmospheric relief valve
IRV Internal relief valve
SV Solenoid valve
PT Pressure transducer
PG Pressure gauge
The compressor continuously draws low-pressure helium from the system’s helium low pressure
(return) line. It compresses, cools and cleans the gas, then delivers it through the system’s
helium high pressure (supply) line to the cold head. See Figure 1.
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