Back-up ring STU

Design Sketch
Installation Sketch

  • Concave cross section
  • Excellent sealing effect
  • High wear resistance
  • High pressure creep resistance
  • Low deformation due to larger contact surface of the O-ring
  • High extrusion reliability
  • Long service life
Most commonly used in the following applications:
  • Extension of the application range of o-rings
  • Prevents gap extrusion with radial sealing O-rings
PRD(EU) - 20240326.3