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Seal storage items
- Jul 27, 2018 -

Seals are usually used as spare parts and should be stored for a longer period of time. O-rings may fail due to changes in their physicochemical properties under the influence of, for example, distortion, oxygen, ozone, light, heat, moisture, oil or solvents. In the DIN7716, ISO2230, DIN9088 and other standards, the basic requirements for the size, cleaning and maintenance of rubber seals are made. Depending on the type of material, these standards give the storage conditions and recommended values for the storage period. To maintain the physical and chemical properties of the elastomer, please observe the following storage rules, which are designed to maintain the most suitable storage conditions:


1. Temperature: 5 ° C to 25 ° C is the ideal storage temperature. Avoid contact with heat sources and sunlight. For seals taken from low temperature storage conditions, they should be placed in a 20 ° C environment for a period of time before use.


2. Humidity: The relative humidity of the warehouse should be less than 70%. Avoid excessive moisture or too dry, and condensation should not occur.


3. Illumination: Avoid sunlight and strong artificial light sources containing ultraviolet light. UV-resistant bags provide the best protection. It is recommended that the warehouse window be painted with red or orange paint or a sunscreen.


4. Radiation: To avoid damage to the seal by ionizing radiation.


5. Oxygen and ozone: Rubber materials should be protected from exposure to circulating air. This can be accomplished by packaging, winding, storage in an airtight container, or other suitable method. Ozone is harmful to many elastomers. The following equipment should be avoided in the storage room: mercury vapor lamps, high-voltage electrical equipment, electric motors, equipment that generates sparks or static electricity.


6. Deformation: The elastomer material should be placed in a free state as much as possible to avoid stretching, compression or other deformation. If the original packaging elastomer is in a non-deformed state, the original packaging should be used as much as possible. Contact with liquid or semi-solid materials: Rubber seals must not be exposed to solvents, grease, or other semi-solid materials (unless the manufacturer's original packaging).

Contact with metal or non-metallic materials: Do not allow contact with magnetic materials, cast iron, copper and alloys, or those that can damage rubber. PVC materials should not be used to package seals. Seals of different materials must not be mixed together.


7. Cleaning: If necessary, soap and water can be used to clean the seals. However, water is not allowed to contact fiber reinforced seals, rubber metal bonded seals, and AU parts. Disinfectants, organic solvents, and tools with sharp edges are not allowed. The cleaned seal should be dried under the greenhouse and should not be exposed to heat.