What is the performance of the sealing ring?

Aug 05, 2024

The performance of sealing rings involves multiple aspects, including sealing performance, self sealing effect, friction characteristics, wear resistance and chemical resistance, temperature adaptability, as well as simple structure and easy maintenance. These performances collectively ensure the reliable operation and long-term service life of the equipment. As an important sealing component, the performance of the sealing ring directly affects the operational efficiency and reliability of the equipment.

 

Sealing performance
The sealing ring first needs to have good sealing performance, which means it can effectively prevent leakage in different working pressure and temperature ranges. As the pressure increases, the sealing ring should be able to automatically improve its sealing performance to ensure the normal operation of the equipment.

 

self sealing
The Y-shaped sealing ring is an example, which has a "self sealing effect", that is, when the internal pressure increases, the lip and sealing surface fit more tightly, thereby improving the sealing performance. This self sealing effect enables the Y-shaped ring to effectively seal high pressure, such as 32MPa pressure.

 

Friction characteristics
The sealing ring also needs to have a small friction force and a stable friction coefficient. This helps to extend the lifespan of the equipment and reduce the risk of damage to the equipment. In addition, good self-lubricating performance can also enable the sealing ring to perform well in the absence of oil lubrication.

 

Wear resistance and chemical resistance
Good wear resistance and chemical resistance are also important properties of sealing rings. For example, EPDM (ethylene propylene diene monomer) rubber seals are suitable for sealing in high-temperature water vapor environments, while fluorine rubber seals have better high temperature resistance than silicone rubber but poorer cold resistance.

 

Temperature adaptability
The temperature range of the sealing ring is also a key factor. Different rubber materials have different temperature adaptability. For example, natural rubber (NR) generally has a temperature range of -20~100 ℃, while metal rubber seals can have a much wider range of use, from -80~800 ℃.

 

Simple structure and easy maintenance
A good sealing ring not only has excellent performance, but also has a simple structure that is easy to install and maintain. This helps reduce equipment downtime and lower maintenance costs.