Commonly used self-sealing compression hydraulic seals

Commonly used self-sealing compression hydraulic PTFE seals mainly O-ring, round and square ring seals, etc., which has a simple structure, easy to manufacture, low cost, etc., so they are hydraulic drive widely used in dynamic sealing element and static sealing.
Hydraulic seals mounted in the sealing groove generally produce 10-25% of the radial compression deformation, and the sealing surface to produce a higher initial contact stress, thereby preventing leakage of the liquid without pressure.
Hydraulic cylinders work, the pressure fluid squeeze self-sealing compression hydraulic seals, so that further deformation, and the sealing surface with a greater pressure on the liquid pressure, the pressure should be strictly. The additional increased and increased contact stress and stress together with the initial contact pressure to prevent leakage of the liquid. However, when the working pressure is greater than 10Mpa, in order to avoid self-sealing cargo seals synthetic rubber-type hydraulic seal compression portion of the sealing gap is extruded into reciprocating motion in the cylinder is cut off and cause leakage, to puncture the synthetic rubber-type pressure tight security seals seal hydraulic pressure side of each setting a synthetic resin retainer, such as nylon ring, ring and PTFE POM ring.