1.Filtration precision (micron level)
refers to the smallest particle diameter that the oil filter can effectively intercept (usually 1~20 microns), which directly affects the filtration effect of impurities. Insufficient accuracy can cause particles to enter the lubrication system and accelerate component wear.
2.Filtration accuracy
the interception rate of particles under nominal accuracy (eg ≥98%). The higher the efficiency, the better the cleanliness of the lubricating oil.
3.Rated flow rate
matches the lubricating oil circulation volume of the air compressor. If the flow rate is too low, it will lead to insufficient oil pressure. If the flow rate is too high, it may increase the resistance and affect the stability of the system.
4.Initial pressure difference and maximum allowable pressure difference
Initial pressure difference (resistance of new filter element, usually 0.1~0.3 bar) and maximum pressure difference (recommended replacement threshold, such as 1.0~1.5 bar). Excessive pressure difference may result in insufficient oil supply.
5.Dust holding capacity
The total amount of impurities contained in the filter element determines the replacement cycle. Filter elements with high dust holding capacity have longer service life and are suitable for dusty environments.
6.Material and durability
Filter material: It needs to be resistant to high temperature (≥90℃) and oil corrosion (such as glass fiber).
Shell: Metal material (steel/aluminum) ensures strength and prevents high-pressure bursting.
7.Interface size and installation method
The thread specifications and the direction of the oil inlet and outlet must match the air compressor. Wrong installation may cause oil leakage or poor oil circuitry.
8.Operating temperature range
It needs to adapt to the operating temperature of the air compressor (usually -20℃~120℃), and the filter material needs to maintain structural stability under high temperatures.
9.Certification standards
Meet compressed air quality or manufacturer standards to ensure reliability and compatibility.
The performance of the oil filter directly affects the life and energy efficiency of the air compressor. It is necessary to strictly match the parameters when selecting, pay attention to regular maintenance and monitoring during use, and flexibly adjust the maintenance strategy based on the environment and working conditions. If we encounter frequent blockages or abnormal pressure differences, we should check for potential problems such as oil, external contamination, or mechanical wear.
Post time: Feb-25-2025