Mechanical seal auxiliary sealing ring material performance and requirements-

Performance and requirements of mechanical seal auxiliary seal ring material

　2019-02-22　　

The performance and requirements of mechanical seal auxiliary seal ring material:

The physical and mechanical performance requirements of mechanical seal auxiliary seal ring material are related to the sealing surface material. Table 5-14 introduces some auxiliary seal ring material properties. 59U mechanical seal

Table 5-14—Introduction of some auxiliary sealing ring material properties

According to the role of the auxiliary seal of the mechanical seal, the requirements for the material of the auxiliary seal ring:

①The material has good elasticity, especially requiring good restorability and small permanent deformation;

②It is not corroded by the fluid medium, and the expansion and contraction in the medium are not large;

③Small friction coefficient, good wear resistance;

④ The use temperature range should be wide (not sticky, hardened and brittle and lose elasticity at high and low temperatures);

⑤ It must have appropriate mechanical properties, such as tear strength and elongation, pressure resistance, etc., without significant deformation under pressure, and have excellent tear resistance, wear resistance and pressure resistance, etc.;

⑥ It is easy to process and can get high precision;

⑦Good resistance to media corrosion, dissolution, swelling, aging, etc., and no pollution to the media.　　1061.html,

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