Width of sealing surface of mechanical seal-

by:Lepu     2021-04-14
Width of sealing surface of mechanical seal
 2017-07-10  
Width of sealing surface of mechanical seal:
The width of the sealing end face of a mechanical seal is also an important macroscopic geometric parameter. The frictional heat generated when the end face of the H9A mechanical seal is working is related to its width. If the sealing face is too wide, the heat generated during friction will increase the temperature of the sealing face; if the sealing face is too narrow, the contact pressure of the sealing face will increase, which will increase the wear of the face and increase the leakage. Therefore, it is necessary to comprehensively consider various factors to select the appropriate sealing surface width.
In the initial selection of the sealing surface width of 6, the sealing surface width of the wet running mechanical seal can be selected for reference

The calculation result of the formula should be round and suitable for general rings, 0.015d should be added for wide rings, and 0.015d should be subtracted for narrow rings. Finally, consider the contact pressure of the sealing surface and the load factor K (area ratio B).
The hardness of the static and dynamic ring materials that make up the sealing end face is generally different. In order to prevent the hard ring from being embedded in the soft ring, the width of the sealing surface of the soft ring is usually narrower than that of the hard ring. Generally, the seal pair with shaft diameter of φ15~200mm has a width difference of 1~4mm. For the sealing ring with poor thermal conductivity, its width should be narrower to facilitate heat dissipation.  522.html,

The sealing surface gap of the mechanical seal     the nominal contact area and effective contact area of u200bu200bthe mechanical seal
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