KPR

The piston seal type Aston Seals KPR is composed of:

  • A dynamic seal element which assures exceptional high sealing performance.Two compact and small seal edges ensure perfect fluid control and concentrate the load against the dynamic surface. The cavity between the two external seal edges keeps a small quantity of fluid which reduces friction and wear. Side grooves ensure that pressure loads the energizing element in all work conditions.
  • A nitril rubber element with low permanent deformation as energizing component on the static side. The hardness and the rectangular cross-section prevent twisting of the static element in the groove.
  • High sealing performance at low pressure  
  • Excellent wear-resistance
  • Space-saving construction
  • Can also work for single action
  • Extended service life
  • Simple groove design
  • Low cost solution
  • High resistance against extrusion
  • Good temperature resistance
  • Easy installation on a solid piston

KPR Seal Model

KPR 50 39 4.2 KPR 55 44 4.2 KPR 60 44.5 6.3 KPR 60 49 4.2 KPR 63 52 4.2 KPR 70 54.5 6.3 KPR 70 59 4.2 KPR 80 64.5 6.3 KPR 90 69 8.1 KPR 90 74.5 6.3 KPR 100 84.5 6.3 KPR 110 94.5 6.3 KPR 120 104.5 6.3


Hydraulic Systems and Components