Special type coaxial seal ring design structure and performance characteristics

What is a coaxial seal ring GTDI? It is a sealing element in the hydraulic piston, also known as the piston rod seal ring. Coaxial Sealing Ring (Coaxial Sealing Ring) design structure and characteristics.

What is the structure of piston coaxial seal ring in hydraulic seal? It consists of a slip ring with good lubrication performance and low friction resistance and a silicone sealing ring acting as an elastomer. The sealing material used for the slip ring is low friction polytetrafluoroethylene (PTFE). Because the dry friction between the hydraulic piston seal rod and the seal element is prone to premature damage to the seal lip, the elastomer is generally a narrow section Y-ring, O-ring or V-ring structure type.

The piston rod seal ring has a certain directivity (double seal), forms a step shape at the closed touch position, has a knife edge, also known as a step seal, and the hydraulic cylinder reduces the oil film through the "discharge" of the knife edge; When the hydraulic cylinder retracts, the sealing slope uses a hydrodynamic protective oil film to return it to the studio, improve sealing performance and improve lubrication conditions.

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