What is the principle of size fit between the sealing ring and the sealing groove?

The size fit between the Sealing ring and the Sealing groove should follow the following principles:

1. Temperature and pressure: The size matching of the sealing ring and sealing groove should take into account the required temperature and pressure conditions. In high temperature and high pressure environments, the sealing ring and sealing groove should use a tight fit to ensure effective sealing performance.

2. Elasticity and deformation: Sealing rings are usually made of elastic materials, and their size matching should consider the elasticity and deformation characteristics of the material. The sealing ring should be able to adapt to changes in the shape of the sealing groove and produce appropriate deformation under pressure to achieve sealing.

3. Wear and wear compensation: The size matching of the sealing ring and sealing groove should consider wear and wear compensation. After long-term use, the sealing ring and sealing groove may experience wear, so a certain amount of wear compensation space should be reserved to ensure the durability of the sealing performance.

4. Installation and disassembly: The size matching of the sealing ring and sealing groove should consider the convenience of installation and disassembly. The sealing ring should be able to be easily installed into the sealing groove and easily disassembled when needed.

5. Material selection: The size matching of the sealing ring and sealing groove should consider the expansion and contraction coefficients of the material. The expansion and contraction coefficients of different materials are different, so the size matching of the sealing ring and sealing groove should be able to maintain appropriate sealing performance when the temperature changes.