Back up rings

Back up rings

Back up rings


for the prevention of split extrusion of O-rings and X-rings on high pressure and temperature

Design features

massiv turned, mostly made of PTFE, inside or outside sealing, in axial or radial application


non-protected, split, spiral, straight, concave or conic, with or without chamfers

Operating limits

Pressure: up to 2.500 bar
Temperature: -200° C to +260° C

You can find the values in psi, ° F and FPM on the data sheet.


standard in unfilled PTFE, furthermore available in materials like e. g. PTFE-carbon, Delrin, NBR