A valve stem seal is a crucial component in an internal combustion engine. It is designed to control the amount of oil that passes between the valve stem and the valve guide. This seal ensures that the engine operates efficiently by preventing excessive oil from entering the combustion chamber, which can lead to engine problems such as increased emissions, reduced performance, and potential damage to the catalytic converter.

Features of Valve Stem Seals
* Material Composition: Valve stem seals are typically made from high-quality rubber or synthetic materials that can withstand high temperatures and harsh chemical environments. Common materials include Viton, silicone, and nitrile rubber.
* Design: They come in various designs, including positive seals and umbrella seals. Positive seals fit tightly around the valve stem and guide, providing more precise control of oil flow. Umbrella seals, on the other hand, sit on top of the valve stem and deflect oil away from the valve guide.
* Durability: These seals are designed to last for a long time, often matching the engine's lifespan. They resist wear and tear, high temperatures, and chemical degradation.

Applications of Valve Stem Seals
* Automobiles: They are commonly found in car engines, helping to maintain optimal engine performance and reduce emissions.
* Motorcycles: Motorbike engines also utilize valve stem seals to ensure efficient operation and longevity.
* Industrial Machinery: Heavy machinery and equipment that rely on internal combustion engines also use valve stem seals to maintain performance and reduce maintenance needs.
* Marine Engines: Boats and ships with internal combustion engines use these seals to ensure reliable operation in harsh marine environments.

Founded in 1995, AOK is undoubtedly a valve stem seal manufacturer expert. Furthermore, we also offer customized products for our customers with our ability to design products and produce tooling by ourselves. Contact us for more!