Parker Seal Group
Piston Seal CP Profile

PTFE Piston Cap Seal

Standard Materials

  • Cap: 0401 40% bronze filled PTFE
  • Energizer: 70A Nitrile
Availability: 

  • 0.250" to 16" bore diameter.

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The Parker CP profile is a cap seal with anti-extrusion, low friction, and low wear features. The CP profile is a bi-directional piston seal for use in low to medium duty applications. The CP profile retrofits into an O-ring groove sized for a standard size Parker O-ring without modification. There are three CP profiles to match the groove width for a single O-ring, O-ring with one back up, or an O-ring with two back up rings. Because of the unique design of the filled PTFE cap, the CP profile offers long wear, low friction and anti-extrusion. Because of its short assembly length, only minimal gland space is needed to fit the seal on the piston. The seal is commonly used in applications such as mobile hydraulics, machine tools, injection molding machines and hydraulic presses. Parker's CP profile is designed to retrofit non-Parker seals of similar design. Options: Notched side walls. Notches can help optimize the seal's response to fluid pressure. In application, the void created by the notch allows fluid pressure to fill the cavity between the side face of the gland and the seal. Contact your Parker EPS representative for the availability and cost to add side notches to the CP profile.

CP0 goes into a standard O-ring groove.
CP1 goes into an O-ring groove designed for one back up ring.
CP2 goes into an O-ring groove designed for two back up rings.