Advantages and disadvantages of piston rod seals
The piston rod seal withstands considerable pressure and is in direct contact with hydraulic oil. It maintains good sealing performance under unidirectional pressure.
Jul 24,2024
The advantages of piston rod seals mainly include:
Unidirectional pressure resistance: The piston rod seal withstands high pressure, directly contacts the hydraulic oil, and can maintain good sealing performance under unidirectional pressure.
Prevent hydraulic oil leakage: The piston rod seal is installed inside the dust seal on the inner side of the hydraulic cylinder end cover, and its function is to prevent hydraulic oil leakage.
Good pressure retention performance in a static state: It requires good pressure retention performance in a static state to ensure the stability of the hydraulic system.
High pressure bearing capacity during movement: During movement, the piston rod seal needs to have a high pressure bearing capacity to ensure the normal operation of the hydraulic system.
Strong extrusion resistance: The piston rod seal requires strong extrusion resistance to prevent the sealing element from being extruded under high pressure.
Low coefficient of friction: In order to reduce friction and wear, the coefficient of friction of the piston rod seal needs to be as small as possible.
Long service life: The piston rod seal needs to have good durability to ensure a long and stable service life.
The disadvantages of piston rod seals are relatively few, but mainly include:
Higher cost: High-quality piston rod seals may require higher manufacturing costs.
High requirements for installation accuracy: In order to ensure good sealing performance, the installation accuracy of the piston rod seal is relatively high.
In summary, the piston rod seal plays a crucial role in the hydraulic system. Its advantages far outweigh its disadvantages, so its characteristics should be fully considered in design and use to ensure the stability and reliability of the hydraulic system.
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