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| Valve | Functionality |
|---|---|
| REGP | Regulate the gHe pressure (indicated by P10) from the tanks outside |
| P10 | Pressure indicator: shows the regulated pressure from the outside gHe tank |
| V30 | Controls gHe inlet to the purifier (There is a solenoid valve after this hand valve "V9a" should be opened from QT-HMI screen if you want to let gHe flow-in to the purifier) |
| V35 | Controls gHe outlet from the purifier (There is a solenoid valve after this hand valve "V21a" should be opened from QT-HMI screen if you want to let gHe flow-out from the purifier) |
| P41 | Pressure transducer (connected to a manual gauge at the HR3 front panel): shows the inlet pressure to the purifier (should be equal to P10 if V30 is open) |
| P40 | Pressure transducer (connected to a manual gauge at the HR3 front panel): shows the outlet pressure from the purifier (if |P41 - P40| > 40 psig, then it is an indication that the purifier needs regeneration) |
| V36 | An isolation valve between the inlet-side and outlet-side of the purifier |
| V17A | A bleeder valve to bleed gHe from the outlet (return) side of the gHe tank which includes the spaces : Buffer tank, filters F1, F2, F3 upstream to the compressor's outlet |
| V14 | An isolation valve for the buffer tank from the outside tank |
| SV7 | A solenoid valve is controlled by the small HMI screen on the upper-front section of the HR3. Operational settings: Closing at 50 psig, Opening at 90 psig. |
HR3 control box: normal operation configuration (06/16/2023)
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