5 types of common rubber seals

Rubber sealing rings are common key sealing materials in the industrial field. They are widely used in various fields such as automobiles, aerospace, chemical industry, medicine, etc. Each rubber material has its own specific properties and uses. In this article, we will introduce five common types of seals made of rubber and discuss selection factors for different applications.

1. EPDM sealing ring:

EPDM is an ethylene propylene rubber with excellent weather and chemical resistance. It maintains outstanding elasticity and water resistance over a wide temperature range, making it suitable for outdoor and industrial applications. EPDM sealing rings are commonly used in automotive engines, piping systems, and outdoor equipment.

2. NBR sealing ring:

NBR is a nitrile rubber with good oil and abrasion resistance. It is widely used in automotive engines, hydraulic systems and petrochemical equipment. NBR seals can withstand high temperature and high pressure environments and are the material of choice in many industrial applications.

3. SIL sealing ring:

SIL is a silicone rubber with excellent high temperature resistance and electrical insulation properties. It is widely used in industries such as electronic products, medical equipment and food processing. SIL seals have excellent aging resistance and stability and are suitable for high temperature and organic solvent environments.

4. FKM sealing ring:

FKM is a fluorine rubber with excellent chemical resistance and high temperature resistance. It is commonly used in fields such as chemical industry, petroleum and aerospace. FKM sealing rings are suitable for harsh working conditions, such as strong acid, strong alkali and high temperature environments.

5. CR sealing ring:

CR is a neoprene rubber with good weather resistance and fire resistance. It is commonly used in fields such as construction, power and shipbuilding. CR seals can withstand extreme temperatures and climate conditions and are widely used in outdoor equipment and sealing materials.

When choosing the right rubber seal for your application, consider the following factors:

- Temperature range of working environment

- Chemical resistance of seals

- Material's wear and oil resistance

- Special requirements for applications, such as electrical insulation properties or flame retardant properties, etc.

In short, rubber seals play a key role in industrial applications. Understanding the characteristics and application range of different materials can help you choose suitable sealing rings and improve the reliability and safety of your equipment.

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