After the above-mentioned impurities are mixed into the hydraulic oil, as the hydraulic oil circulates, it will cause damage everywhere, which will seriously affect the normal operation of the hydraulic system, such as small gaps between relatively moving parts in the hydraulic components, as well as throttle holes and gaps. Stuck or blockage; destroy the oil film between the relative moving parts, scratch the surface of the gap, increase internal leakage, reduce efficiency, increase heat generation, aggravate the chemical action of the oil, and make the oil deteriorate. According to production statistics, more than 75% of the faults in the hydraulic system are caused by impurities mixed in the hydraulic oil. Therefore, maintaining the cleanliness of the oil and preventing the contamination of the oil are very important for the hydraulic system.

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