There could be several reasons why the sealing effect of graphite sealing rings is inadequate:
1.Insufficient Surface Roughness: The surface roughness of graphite sealing rings is crucial for achieving effective sealing. If the surface roughness is insufficient, the contact between the sealing ring and the sealing surface may be incomplete, leading to inadequate sealing.
2.Inappropriate Ring Shape: The shape of the sealing ring should match the sealing surface to ensure tight sealing. If the shape of the sealing ring does not match the sealing surface, incomplete sealing may occur.
3.Improper Material Selection: The selection of materials for graphite sealing rings should take into account working conditions such as temperature, pressure, and medium. If the chosen material is not suitable for specific working conditions, it may result in inadequate sealing.
4.Incorrect Installation: The installation process of sealing rings should strictly follow the manufacturer’s recommendations. Improper installation may cause deformation or damage to the sealing ring, affecting the sealing effect.
5.Uneven Sealing Surface: Uneven or damaged sealing surfaces may prevent the sealing ring from achieving complete sealing. Before installing the sealing ring, it should be ensured that the sealing surface is smooth and intact.
6.Inadequate Lubrication: In some cases, proper lubrication can help improve the sealing effect. If the sealing ring is not adequately lubricated, incomplete sealing or frictional wear may occur, affecting sealing performance.
When assessing the reasons for inadequate sealing of sealing rings, it is necessary to consider these factors comprehensively and take appropriate measures to improve sealing effectiveness. This may involve replacing sealing rings, repairing sealing surfaces, adjusting installation methods, or changing material selections.