Back-up Ring concave | Static Seals | Trelleborg

Back-up Ring concave
Back-up Rings are installed together with O-Rings and Quad-Ring® Seals to prevent gap extrusion in applications above 5 MPa / 725 psi. Available in spiral, cut or uncut designs in filled or unfilled PTFE, Turcon®, elastomers and thermoplastics based on ISO 3601, AS 568.
Back-up Ring concave
Technical Drawing

Technical Details 

  • Reciprocating
  • Oscillating
  • Rotary
  • Helix
  • Static
  • Single acting
  • Double acting

PDF Catalogs

For full engineering information and installation, please use our PDF catalogs