When it comes to oil free air compressors, using the correct oil is essential to ensure optimal performance and longevity of the compressor. One of the important factors to consider when selecting an oil for your oil free air compressor is the oil viscosity or the oil number. In this article, we will discuss what the oil free air compressor oil number means and its significance.
The oil number, also known as the viscosity grade, is a measure of the oil's thickness or how easily it flows. The Society of Automotive Engineers (SAE) has established a system for grading oils based on their viscosity, with numbers ranging from 0 to 60. The lower the number, the thinner the oil, and the higher the number, the thicker the oil.
For oil free air compressors, the most commonly used oil numbers are 20, 30, and 40. The oil number required for your oil free air compressor depends on the compressor's operating temperature, the manufacturer's recommendations, and the compressor's design.
In general, low-viscosity oils, such as SAE 20, are recommended for oil free air compressors operating in low-temperature environments. These oils are thin and flow easily, making them suitable for use in cold temperatures. However, they are not suitable for use in high-temperature environments, as they may not provide adequate lubrication.
Medium-viscosity oils, such as SAE 30, are the most commonly used oil number for oil free air compressors. They provide adequate lubrication in both low and high-temperature environments and are suitable for most oil free air compressor applications.
High-viscosity oils, such as SAE 40, are recommended for oil free air compressors operating in high-temperature environments. These oils are thick and provide excellent lubrication and protection against wear and tear, making them suitable for use in hot and demanding environments.
It is important to note that using the wrong oil number can lead to compressor failure, which can be costly to repair or replace. Therefore, it is essential to consult the manufacturer's recommendations to determine the appropriate oil number for your oil free air compressor.
In summary, the oil number or viscosity grade is an essential factor to consider when selecting oil for your oil free air compressor. The oil number required depends on the operating temperature, the manufacturer's recommendations, and the compressor's design. Choosing the correct oil number can help to ensure optimal performance and longevity of your oil free air compressor.
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