What is the primary goal of the purification process for hydraulic fluids?

The primary goal of the purification process for hydraulic fluids is to remove impurities from fluids. Hydraulic systems rely on the efficient transfer of pressure and energy through the fluid, and any contaminants—such as dirt, water, air, or particles—can significantly impact performance. By ensuring that the hydraulic fluid is free from these impurities, the system can operate smoothly, maintain efficiency, and extend the lifespan of components. This purification process is vital for preventing wear and tear on pumps, valves, and other hydraulic components, ultimately ensuring reliability and safety in aviation operations.