Hebei Hankai replacing seals on a hydraulic cylinder

The design of high-pressure rotary shaft seals typically includes a flexible sealing lip that makes contact with the rotating shaft, combined with a robust outer component that holds the seal in position. The materials used in these seals must be durable and resistant to wear, heat, and chemicals. Common materials include elastomers like nitrile rubber, fluorocarbon rubber, and special composites designed for high-performance situations.

One of the primary characteristics of high temperature oil seals is their ability to maintain flexibility and resilience at elevated temperatures. Traditional rubber seals may become brittle and lose their sealing capabilities when exposed to heat. In contrast, high temperature oil seals retain their mechanical properties, ensuring that they continue to perform their sealing function effectively even in harsh conditions. Typically, these seals can withstand temperatures ranging from 150°C to over 300°C, depending on the specific material used.

- Aerospace In the aerospace industry, where precision is paramount, hydraulic seals play a critical role in the operation of flight control systems and landing gear.

4. Piston Seals Similar to rod seals but positioned in a different manner, piston seals ensure that fluid pressure is maintained within the cylinder when force is applied.