Description of the storage of high-pressure seals under various conditions

High pressure seals and supports are often stored in spare parts for extended periods of time. The physical properties of most rubber materials change during storage and can no longer be used, such as: excessive hardness, softness, cracks and cracks or other forms of surface aging. These changes are the result of a combination of specific factors or factors such as deformation, oxygen, ozone, light, heat, humidity or oils and solvents. If some simple measures are taken, the shelf life of these products can be greatly extended. The main points of storage, cleaning and maintenance of elastomeric sealing elements have been established in international standards.

Recommended storage life for elastomers of different material grades in the standard. In order to maintain the optimum physical and chemical properties of the components, the following rules should be observed:

heat

The ideal storage temperature is between 5 ° C and 25 ° C. Avoid direct contact with heat sources, such as boilers and radiators, and avoid direct sunlight. If the temperature is lower than 5 ° C, the seal may be stiff, and care should be taken when handling. The temperature of the seal should be raised to about 25 ° C before use.

humidity

The relative humidity of the storage compartment should be less than 70%. Avoid being too moist or too dry.

Light

Seals such as rubber seals should be stored away from light, especially under sunlight or under artificial light containing UV light. The parts are individually packaged in UV-resistant packaging.

It is recommended to cover the windows of the storage room with red or orange curtains.

radiation

In the case of electronic radiation, special measures should be taken to prevent parts from being damaged.

Oxygen and ozone

If possible, the elastomer should be packaged and stored in a sealed container, free from air. Since ozone can damage the elastomer, equipment that may generate ozone should not be placed in the space where the elastomer is stored, such as ultraviolet lamps, high voltage equipment, electric motors, spark sources or static discharges.