Puradyn > Products > Bypass Oil Filter Elements

Patented Protection:
Only puraDYN® bypass oil filtration systems, with their advanced patented filtration methods, can replenish the oil’s necessary additives and remove the larger volumes of small soot particles generated by newer engines.

Reduce Engine Wear:
As a result of oil kept continuously clean, puraDYN helps reduce costly engine wear, maintenance and downtime — all of which affect profit margins.

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Did you know?
You can get a puraDYN® bypass filtration system factory installed on your new trucks at many
leading OEMs.

Case Study:

Vulcan Chemicals performed in 1998 an engine teardown on a truck fitted with a puraDYN® bypass system that had run over 616,000 miles without an oil change.

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Most full flow filters filter out particles only in the 20-40 micron size, and most bypass filters in the 5-20 micron size. This level of filtration will not significantly reduce wear. In SAE paper #660081 it states, “Filtration of previously used oil to five microns had no significant effect on wear, but filtration to one micron had a substantial effect on wear.”

One-micron filtration is essential for extending equipment life and oil change intervals. It is a known fact that lubricating oil does not wear out and, if kept clean, will maintain its lubrication qualities intact almost indefinitely. Over the past decade the quality of filtration and oil additives has improved greatly but oil changes are still necessary because the available full flow oil filters cannot remove enough of the contaminants.

The puraDYN®, used in conjunction with the manufacturer’s original equipment full flow filter, is designed to achieve this needed fine filtration. The combination of the two types of filtration gives the maximum equipment protection.

Patented Time-Release Additive Package

Specifically formulated to maintain the oil’s total base number (TBN), this patented process thoroughly blends oil additives with a low molecular weight polymer. The polymer, incorporated into the filter element, simply holds the additives until they are released.

The porous polymer is designed to expand and contract as the oil’s temperature rises, allowing additives to migrate to the surface where they are released into the oil.

Advanced Chemical Grafting Filtration Process

puraDYN® filter elements contain media treated with an advanced process for chemical grafting (CGP™) designed to remove solid contaminants to less than one micron by chemically attracting and bonding them to the filter media. This advanced patent-pending filtration method was developed by puraDYN’s engineers as an effective way to remove the higher volumes and smaller particles of soot being generated by newer engines. These particles are too small to be adequately removed by traditional filtration media or centrifuge devices.

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