What type of packing materials should be selected for hydraulic components in systems using Skydrol?

Selecting packing materials for hydraulic components that utilize Skydrol, which is a synthetic phosphate ester hydraulic fluid, requires careful consideration of compatibility with the fluid’s chemical properties. Skydrol is known for its fire-resistant characteristics and its ability to perform well in high-temperature environments, but it can be very aggressive towards certain materials, particularly those that are not designed to withstand ester-based fluids.

Packing materials made specifically for ester base fluids are the most suitable choice because they are formulated to maintain their integrity and functionality in the presence of such fluids. These materials typically exhibit excellent resistance to degradation, swelling, and other adverse reactions when exposed to phosphate esters. As a result, they ensure reliable sealing, longevity, and overall hydraulic system performance while preventing leaks and maintaining operational efficiency.

The other options are less appropriate for use with Skydrol due to potential incompatibility issues. Rubber-based packing, for instance, can degrade in the presence of ester fluids, leading to failure and possible system contamination. Similarly, plastic packing materials may not possess the necessary chemical resistance, and metallic packing materials can introduce different challenges such as corrosion and lack of sealing effectiveness under dynamic conditions. Thus, packing materials made for ester base fluids are essential for ensuring the reliability of hydraulic systems using Skydrol