AVAILABILITY
A sampling of Parker’s part numbers are shown in the configurator above for select materials and sizes.   If the material and dimensions required are not shown, assistance with part number configuration may be found in the literature documents in the Product Support tab.  To check current tooling, review the Part Number Look-up document in the Product Support tab.  Contact Parker for requirements outside typical ranges.

PERFORMANCE ADVANTAGES
Parker’s PSP Profile is a squeeze type, polyurethane cap style piston seal for use in light to medium duty, bi-directional hydraulic applications. Available from proprietary Parker polyurethanes, the PSP offers low friction, abrasion and extrusion resistance. The lathe-cut nitrile elastomer energizer ensures resistance to compression set to increase seal life. The PSP profile’s geometry provides a fluid reservoir between the two sealing lips which holds system fluid, resulting in reduced breakaway and running friction.

The PSP Profile’s geometry provides a fluid reservoir between the two sealing lips which holds system fluid, resulting in reduced breakaway and running friction. Additional features of the PSP Profile include:
• Designed to retrofit grooves for a single o-ring or an o-ring with two back-ups (wide)
• Easy to install
• Resists rolling and twisting in long stroke applications.

Available in polyurethanes, including Parker’s proprietary Resilon®, the PSP Profile provides
• Long life
• Extrusion resistance
• Low compression set

Standard Materials:
• P4622A90 Ultrathane® polyurethane; Temp -65 / +225F; Pressure* 5000 psi; Surface speed