Filtering accuracy is the core indicator for evaluating the performance of a filter or filter element, representing the smallest particle size it can intercept (unit: micrometers μm), which directly affects the protection effect of the equipment and the quality of the oil and air. Here are the key points:
1. Definition and Function of Filtering Accuracy
Core Definition
It refers to the minimum particle diameter that the filter element can intercept. For example, 5 μm indicates that it can filter particles ≥ 5 μm. High-precision filter elements (such as 0.1 – 5 μm) can more thoroughly remove tiny particles and extend the equipment’s lifespan.
Equipment Protection Mechanism
Hydraulic System: If the particles in the hydraulic oil are > 5 μm, they may clog the valve core and scratch the cylinder; in the lubrication system, particles > 10 μm will accelerate the wear of the bearings.
Air Compressor: The oil filter accuracy is usually 5 – 10 μm, which can intercept 99.8% of metal debris and dust, preventing the main unit from wearing out.
2. Key Factors Affecting Accuracy
Filter Material Type
Glass fiber filter paper: Stable accuracy and high temperature resistance, with a lifespan of up to 2000 hours
Wood pulp filter paper: Low cost but suitable for coarse filtration (≥ 5 μm particle interception)
System Compatibility
The accuracy needs to be selected based on the equipment’s operating conditions. The principle of selecting accuracy is not that the higher the better; overly high accuracy will increase energy consumption and pressure difference, and reduce flow rate. Adjust the accuracy dynamically according to the environmental dust concentration (such as 1 – 5 μm for precision instruments, 10 μm for ordinary environments, and 20 μm for high-pollution environments)
Contact Us:Xinxiang Jinyu Filter Industry Co.,Ltd
Website:https://xxjyly.en.alibaba.com
https://www.xxjinyufilter.com
Whatsapp/wechat:+86–15993089106
Email: sales01@xxjinyufilter.com
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Post time: Jul-24-2025