How to store flat sealing rings properly?

Proper storage of flat sealing rings is crucial to maintain their performance and extend their service life. As a reliable flat sealing ring supplier, I understand the significance of correct storage methods and am eager to share some professional insights with you.

1. Understanding the Material Characteristics of Flat Sealing Rings

Before delving into storage methods, it's essential to understand the different materials of flat sealing rings. Commonly used materials include Nitrile Butadiene Rubber (NBR), Ethylene Propylene Diene Monomer (EPDM), and Fluoroelastomer (FKM).

• NBR Flat Sealing Ring Black: NBR is known for its excellent resistance to oil, fuel, and hydraulic fluids. The NBR Flat Sealing Ring Black is widely used in automotive and industrial applications. However, it has limited resistance to ozone and high - temperature environments.
• EPDM Flat Sealing Ring: EPDM offers outstanding resistance to weathering, ozone, and high - and low - temperature extremes. The EPDM Flat Sealing Ring is often used in outdoor applications such as in the construction and automotive industries.
• FKM Flat Sealing Ring: FKM is highly resistant to high temperatures, chemicals, and fuels. The FKM Flat Sealing Ring is commonly used in aerospace, chemical processing, and high - performance automotive applications.

2. General Storage Conditions

Temperature

The ideal storage temperature for flat sealing rings is between 5°C and 25°C (41°F and 77°F). Extreme temperatures can cause the rubber to harden, crack, or become too soft, which will affect its sealing performance. High temperatures can accelerate the aging process of the rubber, while low temperatures can make the rubber brittle.

Humidity

The relative humidity in the storage area should be maintained between 40% and 60%. Excessive humidity can lead to the growth of mold and mildew on the surface of the sealing rings, which may damage the rubber material. On the other hand, extremely low humidity can cause the rubber to dry out and crack.

Light

Sealing rings should be stored in a dark place or in opaque containers. Exposure to sunlight, especially ultraviolet (UV) rays, can cause the rubber to degrade. UV rays can break the chemical bonds in the rubber, leading to hardening, cracking, and loss of elasticity.

Oxygen and Ozone

Oxygen and ozone can react with the rubber, causing it to age and deteriorate. To minimize the exposure to oxygen and ozone, the storage area should be well - ventilated but away from sources of ozone such as electric motors, welding equipment, and high - voltage electrical devices.

3. Storage Containers

Clean and Dry Containers

Use clean and dry containers to store flat sealing rings. Containers can protect the sealing rings from dust, dirt, and other contaminants. Plastic bags, cardboard boxes, or metal containers can be used. However, make sure the containers are free of any chemicals or residues that could react with the rubber.

Separation of Different Materials

When storing different types of flat sealing rings, it's important to separate them. Different rubber materials may react with each other if they are in contact, which can cause damage to the sealing rings. Label the containers clearly to indicate the material, size, and quantity of the sealing rings inside.

4. Handling during Storage

Avoid Deformation

Flat sealing rings should be stored in a way that avoids deformation. Do not stack heavy objects on top of the sealing rings, as this can cause permanent deformation. If the sealing rings are deformed, they may not be able to provide a proper seal when installed.

No Tension or Compression

Do not store the sealing rings under tension or compression. This can change the shape and dimensions of the rings, affecting their sealing performance. For example, do not hang the sealing rings on hooks, as this can stretch the rubber.

5. Inspection and Rotation

Regular Inspection

Regularly inspect the stored flat sealing rings for any signs of damage, such as cracks, hardening, or discoloration. If any damaged sealing rings are found, they should be removed from the storage area immediately to prevent further damage to other rings.

First - In, First - Out (FIFO)

Implement a first - in, first - out inventory management system. This ensures that the oldest sealing rings are used first, reducing the risk of using expired or deteriorated products.

6. Long - Term Storage Considerations

Shelf Life

The shelf life of flat sealing rings depends on the material and storage conditions. Generally, NBR sealing rings have a shelf life of about 3 - 5 years, EPDM sealing rings can last for 5 - 7 years, and FKM sealing rings can have a shelf life of up to 10 years under proper storage conditions.

Re - evaluation

For long - term storage, it's advisable to re - evaluate the quality of the sealing rings before use. This may involve conducting simple tests such as checking the hardness, elasticity, and appearance of the rings.

7. Conclusion and Call to Action

Proper storage of flat sealing rings is essential to ensure their quality and performance. By following the guidelines mentioned above, you can significantly extend the service life of your sealing rings and avoid unnecessary costs and downtime caused by sealing failures.

As a professional flat sealing ring supplier, we are committed to providing high - quality products and professional advice. If you have any questions about flat sealing ring storage or are interested in purchasing our products, please feel free to contact us for further discussion and negotiation. We look forward to serving you and meeting your sealing needs.

References

• ASTM D1418 - Standard Practice for Rubber and Rubber Latices - Nomenclature
• ISO 188 - Rubber, vulcanized or thermoplastic - Accelerated ageing and heat resistance tests