PS81

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PS81

Function
Piston seals are designed to seal the pressurized hydraulic fluid against the atmosphere or
between two pressurized spaces.
Features
  • Symmetrical, double acting piston seal, designed with interference of the preload
element on the ID and slight interference of the PTFE glide ring on the OD.
  • High pressure force because of a machined rubber preload element.
  • Less relative movement of the rubber part compared to an O-Ring giving the seal
a higher wear resistance.
  • Excellent sealing performance in low and high speeds.
  • Suitable for positioning functions.
  • Negligible tendency to “stick-slip” effect, good sliding properties.
  • Low break-away load after long standstills.
  • Excellent gap extrusion resistance.
  • Can be used in grooves where no O-Ring is possible.
Application
Reciprocating pistons in hydraulic cylinders, plungers in heavy-duty applications.
Max. pressure 400 bar, max. speed 10 m/s.
Installation
Snap-in installation.
Attention: PTFE glide rings needs calibration after installation!


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