High Pressure U-Packs Series 31M


The High Pressure U-Pack is a heavy duty rod seal, which incorporates a 75 shore D polyurethane anti-extrusion ring. This allows the seal to be used in higher pressure application

The seal material is thermoset polyurethane and the energizer is nitrile rubber, especially formulated for a low compression set. The energizer profile is the unique Universal Seal diamond section.


  • Seal: Unithane 292 A, Liquid Cast Polyurethane, Duro 92 A
  • Energizer: Nitrile Rubber, Duro 70 A
  • Anti-extrusion Ring: Unithane 475 D, Liquid Cast Polyurethane, Duro 75 D