Filters – Page 2 – RYCO Hydraulics
System Cleanliness – Contamination & Analysis

The performance of hydraulic systems can be impacted by the presence of contaminants in the hydraulic fluid. But how does contamination arise, and how can we monitor and quantify it so that we can effectively manage it and minimise any potential damage to an hydraulic system? An overview of contamination Definition in fluid power Any material, foreign to a system's fluid that has the potential to damage components within that system. Contaminants can be solids, liquids or gasses. What is contamination? There are 7 different classes of contamination: Abrasion - Hard particles causing wear Fatigue - A repeated stressing on a surface Erosion - Particles striking at high velocity Corrosion - Chemical degradation Adhesion - Particles sticking to a surface Cavitation - A vacuum being induced on a fluid Aeration - Gas bubbles within a fluid What causes contamination? There are 3 main causes of contamination: Manufacturing Contaminants can be built-in to a system during manufacture. Hoses, tubes and other components are dirty when fitted Ingress Contaminants may ingress into a system. They may gain entry through seals or tank ...