• Request a Quote
  • Request Engineering Assistance

What would you
like to know?

Contact us for spec sheets, application help and more information.

Innovative Sealing Ring Features Bi-Directional Seal for Superior Sealing EfficiencySealing Ring Permaseal Piston Rings

This innovative Grover-designed sealing ring is designed for mobile hydraulic and industrial hydraulic, shock absorber, air compressor, and gas turbine applications.

Grover's Permaseal sealing ring features a bi-directional seal that provides superior sealing efficiency designed to pass open ports and close the leak path through to the joint.

Available in a wide range of sizes, Permaseal® rings are manufactured in 12 materials with choices of manganese phosphate and electroless PTFE/nickel coatings.

Available Features

  • Chamfer
  • Radius
  • Groove
  • Bronze Insert
  • Taper

Size Range

  • 1.5" - 90"
  • 38.1MM - 2,286MM


  • Mobile Hydraulics
  • Industrial Hydraulic
  • Shock Absorber


  • Cast Iron
  • Ductile Iron
  • Ni-Resist
  • Bronze
  • PTFE


  • Manganese Phosphate
  • Electroless PTFE/Nickel
Request a quote for Peramseal Sealing Rings or Ask an Engineer if Peramseal Sealing Rings are right for your application.