Most compressor users have been told that they need to change the oil every 8,000 hours, every year, or when a compressor oil analysis shows that it needs replacing, depending on which comes first. The time measurements almost always come first, causing rotary screw compressor owners to spend time and money replacing oil they could have used. With a compressor oil purifier, you can extend the fluid service life in normal compressor operating environments by three to five times the oil’s rated service life. Let’s take a look at how the purifier works and how it can improve your operations.

What does oil purification do?

As the name implies, a compressor oil purifier will purify the oil so it does not degrade and negatively impact the other air compressor parts. A purifier does so by removing harmful contaminants that produce acids, speed up oil degradation, and cause corrosion, wear, and fouling. The acidic and ultra-fine solid contaminants, in particular, are the underlying cause of most compressor maintenance and repairs. As the purification process eliminates these problematic contaminants, it increases the service life and extends the change intervals of compressor fluids and machine parts.

How does ion exchange technology work in compressor oil purifiers?

Ion exchange technology has been around for over 100 years, as it was first used commercially in water purifying applications in 1915. Now, the same process can purify oil-flooded rotary screw compressor fluids. The technology selectively adsorbs and neutralizes materials by using the electrical attraction of oppositely charged matter, or ions. As compressor fluids degrade, they create acidic compounds made of cationic Hydronium ions. The oil purifier employs a formulated anionic media to attract those ions in the oil’s acidic compounds. When the purifier’s ion exchange media comes into contact with oil that contains these acids, the media adsorbs the acid molecules, removing them from the oil. The acid molecules become permanently bonded to the media as it neutralizes the oil and manages the Total Acid Number, or TAN. This one-way reaction, which differs from other ion exchange processes, prevents the release of any harmful contaminants back into the oil that could cause sludge or other problematic changes in the oil. If you want your compressor fluids to last longer and cause less harm to the compressor parts, you need an oil purifier. Rely on Fluid Metrics to provide you with this unique technology that can transform your operations.