What is the low stage compressor oil pressure in a two-stage package system?

In a two-stage package refrigeration system, the low stage compressor oil pressure is typically set to ensure adequate lubrication and cooling, as well as to maintain optimal operational efficiency. The value of 45 PSID is generally accepted as the standard low stage compressor oil pressure in such systems.

Maintaining this pressure level is crucial to prevent compressor wear and to ensure the longevity of the equipment, as insufficient oil pressure can lead to overheating and potential damage. The choice of specifically 45 PSID reflects operational practices in the industry, where effective lubrication is critical, especially under varying load conditions that can occur in industrial refrigeration applications.

While the other pressure values listed might appear plausible, they do not align with the common operational standards for low stage compressors in a two-stage system, which is why 45 PSID is recognized as the correct benchmark.