Understanding Filter Performance

Posted by Roberto Schnakofsky on Dec 14, 2023

Understanding Filter Performance


In any hydraulic system, the heart of its longevity and efficiency lies in how well it's protected. This protection often comes from the unsung heroes of the system: the hydraulic filter elements. These elements are critical in keeping the system free from contaminants and ensuring smooth operation. Understanding filter efficiency and the role of beta ratios is key to selecting the right filters, especially when using advanced options like dual phase microglass filtration media and Power guard filter elements.

Protecting Hydraulic Systems

Hydraulic systems are complex and sensitive. They need constant protection from particles and debris that can cause wear and tear. Filter efficiency is the measure of a filter's ability to capture and retain these unwanted particles. The better the filter efficiency, the cleaner the hydraulic fluid, and the longer the system's lifespan. It's not just about keeping the fluid clean; it's about safeguarding the entire system from potential damage.

What are Hydraulic Filter Elements?

Hydraulic filter elements are the components within a hydraulic system that trap and remove contaminants from the fluid. These elements come in various types, each designed to target specific kinds of impurities. The choice of filter element can significantly impact the system's overall health. The materials used in these filters, like dual phase microglass, are chosen for their effectiveness in capturing a wide range of particle sizes.

Dual Phase Microglass Filtration Media

One of the most advanced materials used in hydraulic filtration is the dual phase microglass filtration media. This material is known for its high efficiency in filtering out even the smallest particles. The dual phase aspect refers to the two layers of glass fibers, each with different properties, working together to enhance filtration efficiency. This means cleaner fluid and better protection for the hydraulic system.

Understanding Filter Performance

Absolute Rating:

An absolute rating gives the size of the largest particle that will pass through the filter or screen. Essentially, this is the size of the largest opening in the filter although no standardized test method to determine its value exists. Still, absolute ratings are better for representing the effectiveness of a filter over nominal ratings.


Beta Ratios:

A crucial aspect of filter efficiency is the beta ratio. This ratio is a way of quantifying a filter's effectiveness. It's calculated by comparing the number of particles before and after the filter. A higher beta ratio means a more efficient filter. For instance, a beta ratio of 200 indicates that only one particle out of 200 will pass through the filter. Understanding these ratios helps in selecting the right filter for your hydraulic system.


                                             Beta Ratios and Their Efficiency Percentage

The efficiency of the filter can be calculated directly from the beta ratio because the percent capture efficiency is ((beta-1)/beta) x 100. A filter with a beta of 10 at five microns is thus said to be 90 percent efficient at removing particles five microns and larger.

Beta ratios are an effective way of gauging the expected performance of a filter.

The Importance of Power Guard Filter Elements

Among the various types of filter elements, Power guard filter elements stand out. They are designed for maximum protection and efficiency. These elements incorporate dual phase microglass media, ensuring high beta ratios and superior filtration performance. Choosing Power guard elements means opting for a solution that will extend the life of your hydraulic system and maintain its efficiency.

The efficiency of filters and the understanding of beta ratios are more than just technical aspects of hydraulic systems; they are essential components in maintaining the health and longevity of these systems. By choosing the right filter elements, like those made from dual phase microglass and Power guard, you ensure your system is well-protected and operates at its best. Understanding these concepts is not just about maintaining a system; it's about optimizing it for peak performance.

                                          Royac Authorized Partner of TTI