Guangzhou Zhongleng Trading Co., Ltd.


Release date:

2021-11-12

What are the functions of refrigeration oil? Refrigeration oil is used to lubricate the moving parts inside a refrigeration compressor; it is commonly referred to as refrigeration oil or simply lubricating oil. For central air-conditioning systems, regular replacement of the refrigeration oil is essential to ensure smooth operation. Recently, the editor at Guangzhou Zhongleng was asked about the roles of refrigeration oil, and this article provides the answers.

What are the functions of refrigeration oil? Refrigeration oil is used to lubricate the moving parts inside a refrigeration compressor; it is commonly referred to as refrigeration oil or simply lubricating oil. For central air-conditioning systems, regular replacement of the refrigeration oil is essential to ensure smooth and reliable operation. Recently, the editor at Guangzhou Zhongleng was asked about the specific roles of refrigeration oil, and this article provides the answers.

In a compressor, refrigeration oil primarily serves four functions: sealing, energy regulation, cooling, and lubrication.

1. Sealing
Refrigeration oil serves as a sealant within the compressor, ensuring tight sealing between the piston and the cylinder wall, as well as between all rotating bearings, thereby preventing refrigerant leakage.

2. Energy Regulation
For refrigeration compressors equipped with an energy‑adjustment mechanism, the oil pressure of the refrigerant oil can be used as the power source for the energy‑adjustment system.

3. Cooling down
When used as a lubricant between the moving parts of the compressor, refrigeration oil can dissipate the heat generated during operation, keeping these components at lower temperatures and thereby enhancing the compressor’s efficiency and operational reliability.

4. Lubrication
Refrigeration oil lubricates the compressor during operation, reducing friction and wear and thereby extending the compressor’s service life.

High‑quality refrigeration oil is very pure, appearing as a pale yellow or colorless, transparent liquid. After being used in a compressor for some time, the oil gradually darkens and its transparency deteriorates, leading to degradation. Degraded refrigeration oil exhibits significantly reduced cooling and lubricating performance; during compressor operation, it can form carbonaceous deposits, which readily cause blockages in the refrigeration system.

Guangzhou Zhongleng Trading Co., Ltd. is a modern supplier of refrigeration materials, specializing in genuine, branded products such as refrigeration oils, refrigerants, and refrigeration components. With years of experience in the industry, we welcome all customers to contact Guangzhou Zhongleng for business inquiries.