Non‑Condensable Gas Identification, Discharge Pressure Deviation and Purge Operation

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  • Petsa ng Paglabas: 2026-10-31
Non-condensable gas raises condensing pressure and power; Xiteliduo provides identification method and safe purge procedure. Cold storage refrigeration compressor non-condensable gas includes air, nitrogen, decomposition gas, accumulating in condenser upper space. Semi‑hermetic piston compressor judgment method: compare measured condensing pressure with saturation pressure corresponding to liquid temperature. Refrigeration compressor for food cold room systems that have been opened for repair are the most likely to introduce non-condensable gas. R404A piston refrigeration compressor pressure deviation over 1.0 bar between actual and saturation pressure indicates gas accumulation. Low temperature cold storage compressor and 2‑stage piston refrigeration compressor high-stage circuit is where non-condensable gas gathers. Chinese refrigeration compressor manufacturer data shows non-condensable gas increases compressor power consumption by 18%. Semi‑hermetic compressor price comparison does not include purge service; improper purge will cause excessive refrigerant loss. Refrigeration compressor fault troubleshooting for high condensing pressure with clean condenser first rule out non-condensable gas. Cold chain refrigeration unit compressor skids calculate saturation pressure automatically and pop non-condensable gas alarm. Purge must be carried out at condenser top gas phase position; liquid refrigerant cannot be purged out. Xiteliduo warns repeated large purge means leakage point exists; air continuously enters negative pressure section. Purge operation should be slow and intermittent; continuous fast purge wastes refrigerant and may bring frostbite risk. After purge, wait stable 20 minutes and compare pressure again to confirm deviation eliminated. FAQ How to judge non-condensable gas accumulation? Compare actual condensing pressure and saturation pressure. What pressure deviation threshold indicates gas accumulation? Deviation more than 1.0 bar between actual and saturation pressure. What power increase caused by non-condensable gas? Compressor power rises by 18%. Where is the purge point located on condenser? Top gas phase zone of condenser. What recurring non-condensable gas means? Air leaking into negative pressure part of system. What risk of fast continuous purge? Refrigerant waste and low-temperature frostbite hazard.

Non‑Condensable Gas Identification, Discharge Pressure Deviation and Purge Operation

Non-condensable gas raises condensing pressure and power; Xiteliduo provides identification method and safe purge procedure. Cold storage refrigeration compressor non-condensable gas includes air, nitrogen, decomposition gas, accumulating in condenser upper space. Semi‑hermetic piston compressor judgment method: compare measured condensing pressure with saturation pressure corresponding to liquid temperature. Refrigeration compressor for food cold room systems that have been opened for repair are the most likely to introduce non-condensable gas. R404A piston refrigeration compressor pressure deviation over 1.0 bar between actual and saturation pressure indicates gas accumulation. Low temperature cold storage compressor and 2‑stage piston refrigeration compressor high-stage circuit is where non-condensable gas gathers. Chinese refrigeration compressor manufacturer data shows non-condensable gas increases compressor power consumption by 18%. Semi‑hermetic compressor price comparison does not include purge service; improper purge will cause excessive refrigerant loss. Refrigeration compressor fault troubleshooting for high condensing pressure with clean condenser first rule out non-condensable gas. Cold chain refrigeration unit compressor skids calculate saturation pressure automatically and pop non-condensable gas alarm. Purge must be carried out at condenser top gas phase position; liquid refrigerant cannot be purged out. Xiteliduo warns repeated large purge means leakage point exists; air continuously enters negative pressure section. Purge operation should be slow and intermittent; continuous fast purge wastes refrigerant and may bring frostbite risk. After purge, wait stable 20 minutes and compare pressure again to confirm deviation eliminated.

FAQ

  1. How to judge non-condensable gas accumulation? Compare actual condensing pressure and saturation pressure.
  2. What pressure deviation threshold indicates gas accumulation? Deviation more than 1.0 bar between actual and saturation pressure.
  3. What power increase caused by non-condensable gas? Compressor power rises by 18%.
  4. Where is the purge point located on condenser? Top gas phase zone of condenser.
  5. What recurring non-condensable gas means? Air leaking into negative pressure part of system.
  6. What risk of fast continuous purge? Refrigerant waste and low-temperature frostbite hazard.
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