Lubricating Oil Purifier Filter Maintenance Guide

To extend the service life of lubricating oil vacuum dehydration purifiers, proper maintenance, care, and regular cleaning are essential. This article focuses specifically on the maintenance and replacement of filter elements. As consumable parts, well-maintained filters can help reduce long-term equipment costs and improve the efficiency of the vacuum purification system.

Lubricating oil purifier filter maintenance guide:

During the cleaning of lubricating oil or turbine oil vacuum purifiers, special attention must be paid to the stainless steel mesh of the filter element. Avoid deformation—if any damage is found, ｒｅｐｌａｃｅ the filter immediately.

Filter elements are delicate instruments made of fine materials that can be easily damaged. Over time, they accumulate impurities that must be cleaned regularly to maintain filtration performance and avoid reduced efficiency.

Types of Filter Elements:

Oil purifiers generally use two types of filters:

    Impurity filters: Capture mechanical impurities and metal particles. These are often made of stainless steel mesh, though some finer filters use polymer, fiberglass, or paper materials.

    Water separator filters: Made from oleophilic and hydrophobic coalescing material, commonly used in vacuum dehydration oil purifiers. These are not easily contaminated but should be replaced once saturated—typically every 2–4 years—or when dehydration performance declines.

Cleaning and Replacement Instructions:

Stainless steel mesh impurity filters are usually threaded for easy removal. Clean them using a compatible cleaning oil or gasoline and a soft brush. For deeper cleaning, use an air compressor to blow air from the inside out through the threaded opening.

Tips:

    If the equipment won’t be used for an extended period, drain any remaining oil from the filter—especially in cold climates.

    Avoid letting the filter sit in oil for long periods to prolong its life.

    After filtering high-viscosity oils, always drain the filter while the oil is still warm to prevent clogging and deformation.

Once cleaned, reassemble all parts and ensure all connections are tight.

Important Note on Filter Precision:

Higher precision filters (e.g., 1–20 micron) made of polymer, fiberglass, or paper are often harder to clean and may be designed for one-time use. Filters with a micron rating above 40 (usually stainless steel) can typically be cleaned and reused.

When selecting an oil purifier, avoid choosing excessively high filter precision unless necessary. Match the filter type and precision to your specific application to balance performance with cost-effectiveness.