O-gyűrű

O-gyűrű

The o-ring is a double-acting sealing element. Sealing effect is achieved by deformation of the round profile. The size of the deformation is determined by the groove depth. This deformation, which is sometimes called depression or pre-tension, acts in radial or axial direction and provides the ring with the initial sealing ability. Under pressure, the ring behaves similarly as a liquid with high surface tension. The pressure is uniformly transferred in all directions. The force raised by the initial deformation of the o-ring is added to the force raised by the pressure in the system and they together create the resulting sealing force.