Series AP23: Heavy-Duty Four-Piece Piston Seal

The AP23 Series is one of the most robust four-piece piston seals available on the market. It consists of a profiled energizer, a PTFE-filled seal element and two active anti-extrusion backup rings. It is designed for double-acting cylinders in heavy-duty applications subject to severe pressure spikes coupled with high running clearance.


The AP23 Series, four-piece piston seal is ideal for heavy duty sealing applications where pressure spiking can occur.

Typical applications include:

  • Forging Presses

  • Extrusion Presses

  • Stamping Presses

  • Mining

  • Specialty high-pressure cylinders

  • Various advancing and secondary cylinders


High pressure capability and wide temperature range

Excellent fluid compatibility including water-based fluids (H-PU)

Exceptional abrasion resistance

Highly extrusion resistant

Available in diameters up to 2000mm

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