Static sealing solutions for all industries


Sealing Solution for Hydraulic, Pneumatic and Oleo-Pneumatic Applications

X-Rings (JF4 sealing rings) are seals with a cross-section comprising 4 lobes. JF4 sealing rings offer a better solution to ensure tightness of hydraulic, pneumatic and oleo-pneumatic devices.

They are particularly suitable for dynamic applications such as:

  • alternating movements
  • rotating movements


  • No direction of assembly
  • Reduced size: light weight and cost reduction
  • Friction reduction
  • Reduced starting torque
  • Dual sealing line
  • Limited residual film
  • Less wear
  • No twisting
  • Increased durability of the product