Classification of split seals can be divided from different perspectives, mainly including the following types:
Classification by sealing material:
Soft seal: Use flexible materials such as rubber, silicone, etc., with good sealing and adaptability.
Hard seal: Use hard materials such as metal and plastic, with high durability and rigidity.
Classification by sealing function:
Static seal: Used for fixed position connections, such as flanges, pipes, etc., mainly achieved by gaskets, sealants, etc.
Dynamic seal: Used for sealing between relatively moving parts, such as bearings, pistons, etc., which requires good wear resistance and adaptability.
Classification by sealing structure:
Self-sealing: Relying on its own structure to achieve sealing function, compact structure and simple maintenance.
Auxiliary seal: Need to rely on additional devices or methods for assistance, such as using oil seals, sealing films, etc. to achieve liquid or gas isolation.
Classification by whether the seal is in contact with the parts that it acts on and moves relative to it:
Contact seal: Good sealing, but limited by friction and wear, suitable for occasions with low sealing surface linear speed.
Non-contact seal: Poor sealing, but suitable for occasions with higher speed.
Classification by working pressure:
Medium and low pressure static seal: Commonly used gasket seals with softer materials and wider gaskets.
High pressure static seal: Use metal gaskets with harder materials and very narrow contact width.
Classification by sealing form:
Point seal, rubber seal and contact seal: These forms are suitable for different application scenarios and needs.
