O-ring sealing method: According to the load type, it can be divided into static seal and dynamic seal; according to the main purpose of the seal, it can be divided into hole seal, shaft seal and rotating shaft seal; according to its installation method, it can be divided into axial installation and radial installation. During axial installation, for shaft seals, the error between the inner diameter of the O-ring and the diameter d2 to be sealed should be as small as possible; for hole seals, the inner diameter should be equal to or slightly lower than the diameter d1 of the pipe groove.

O-ring working materials and working standards: When actually selecting O-ring raw materials, the first thing to consider is the compatibility with the working materials. Working conditions such as the working pressure, temperature, continuous working time, and operating cycle of the seal must also be comprehensively considered.

When installing the O-ring, the installation environment must be kept clean, especially to prevent dust from entering the installation site. If hard particles enter, it may cause serious damage to the surface of the O-ring during operation. This will shorten the overall service life of the product, and damage to the surface material will also increase the internal corrosion of chemicals such as fuel, which will cause greater damage after a period of use.

Before installation, the surface of the O-ring should be cleaned, and the installation site, especially the contact surface, should be thoroughly cleaned. This is to improve the contact surface between the O-ring and the sealing component and provide a more stable seal. In addition, the actual effect is that the surface of the equipment can be inspected, and if there are small gaps and unevenness, it can be dealt with in time for maintenance.

Therefore, during the installation process of the O-ring, it is necessary to ensure that the installation environment and the surface of the O-ring are clean, and all details are properly resolved. This will not only fully exert the sealing effect of the O-ring, but also It can also extend the service life of the product and prevent unexpected serious damage.

O-rings are likely to be affected by various external environmental factors, such as distortion, CO2, reactive oxygen species, sunlight, heat, humidity, refined oil, or organic solvents, etc. Invalid due to changes in its physical properties. Standards such as DIN7716, ISO2230, and DIN9088 set basic requirements for the storage, cleaning, and maintenance of vulcanized rubber seals.

1. Temperature: 5-25℃ is an ideal storage temperature. Contact with heat sources and sunlight should be avoided. Seals removed from low-temperature storage must first be placed in an environment of 20°C before use.

2. Environmental humidity: The air humidity in the warehouse should be lower than 70% to avoid excessive humidity or excessive dryness, and avoid cold and cold conditions.

3. Sunlight exposure: Avoid sunlight and strong human-made light sources with ultraviolet light. Packaging bags that block UV rays provide the best protection. It is recommended that the warehouse windows be painted with bright red or orange architectural paint or plastic film.

4. Radiation source: Prevent damage to seals caused by electromagnetic wave radiation.

5. Oxygen and active oxygen: Elastomer materials should be prevented from being exposed to circulating fluid air. This can be accomplished by packaging, coiling, storing in airtight containers, or other suitable means. Active oxygen is harmful to most polyurethane elastomers. Avoid the following equipment in the warehouse: liquid mercury vapor lamps, high-voltage electrical equipment, motors and other equipment.

6. Deformation: Rubber products should be placed in a random state as much as possible to avoid stretching, shrinking or other deformation.

7. Contact with liquid or semi-solid raw materials: Do not come into contact with organic solvents, oil, grease or other semi-solid raw materials.

8. Contact with metal or non-metallic materials: It is not allowed to contact permanent magnets, iron, copper and aluminum alloys, or materials that will damage vulcanized rubber. PVC materials cannot be used to package seals. Seals of different materials cannot be mixed.

9. Cleaning: If necessary, you can use soap and water to clean the seal. However, water cannot come into contact with fiber reinforced seals, vulcanized rubber metal bonded seals, and AU material seals. Disinfectants, solvents and tools with sharp edges are not allowed. Cleaned seals should be dried at room temperature and not near heat sources.