Sealing rings made of PTFE composites usually consist of two elements:

  • A support ring made of rubber mostly like circular O-ring
  • A sealing ring made of PTFE composite shape dependent on the type of the node

The support ring serves as a prandial producing an initial peripherally-radial emphasis as a result its modulus of elasticity. Sealing ring transfers radial forces on mobile structure as a result of the impact of the support ring and the pressure of sealed medium. These seals are used to seal the pistons (OW1) and rod (OW3), hydraulic cylinders when it is desired to save space of node and working in high-speed.


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