The Glyy ring is composed of a rubber O-ring and a polytetrafluoroethylene ring. The material is PTFE + NBR. In special cases, the rubber elastomer nitrile rubber NBR uses fluorine rubber FKM. It can be divided into Gly ring for hole and grid for shaft, but its sealing effect is the same. According to its own deformation, it will produce higher initial contact stress on the sealing surface and prevent the leakage of pressureless liquid. When the hydraulic cylinder is working, the pressure liquid passes through the elastic deformation of the O-shaped sealing ring to squeeze the square sealing ring to the utmost extent, making it close to the sealing surface, resulting in a higher additional contact stress that increases as the pressure of the pressure liquid increases, and Together with the initial contact stress, the leakage of pressure liquid is prevented.

Working pressure: 0-40MPa;

Reciprocating speed: less than 5m/s;

Operating temperature: -35—+120 when O type is more NBR, -20—+200 when it is FKM;

Working medium: hydraulic oil, gas, water.