What distinguishes hermetic compressors from open compressors?

Hermetic compressors are characterized by their construction as sealed units, which means the motor and compressor are enclosed in a single housing. This design not only protects the compressor from external contaminants such as dust and moisture but also prevents refrigerant leakage. Because of this sealed nature, hermetic compressors require very little to no maintenance throughout their operational life, making them more convenient for many applications.

In contrast, open compressors have separate motor and compressor components, which can lead to exposure to environmental factors, potentially resulting in the need for maintenance or service over time. This distinction defines the fundamental operational advantage of hermetic compressors as being low-maintenance options for refrigeration systems. This quality is particularly valuable in commercial and industrial applications where the reliability and reduction of downtime are critical.