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PARKER DE PNEUMATIC SEAL

    Pneumatic Seal DE

    The single-acting profile DE is a complete pneumatic piston with a cup seal and a vulcanized metal disc support. It performs three functions:
    Sealing, guiding and cushioning.

    • Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
    • Cushioning buffers on the piston´s front faces with integrated ventilation ducts provide for mechanical cushioning of the cylinders.
    • Multi-functional element: seal, guiding and cushioning element.
    • Immediate response (full pressure load) thanks to incorporated venting channels.
    • Good wear resistance.
    • Ideal corrosion protection thanks to complete elastomer covering.
    • Smooth running due to optimum adjustment of the functional lips.
    • Easy attachment to the piston rod without additional sealing elements.
    • Easy installation due to integrated static sealing function.
    • Excellent media resistance in case of suitable compound selection.
    • Also available as double-acting version.
    • Low assembly height of the complete piston enables short cylinder designs.
    • Versatile complete piston for nearly all cylinder designs.

    Range of application
    Complete piston for single-acting pneumatic cylinders with end cushioning, provided that no excessive lateral guidance loads will occur (long strokes and buckling).
      
    Operating pressure ≤ 12 bar
    Operating temperature -30 °C to +80 °C
    Sliding speed ≤ 1 m/s
    Media Compressed air, both lubricated and oil free (after greasing for fitting)

    Installation
    The profile DE complete piston is fixed to the piston rod with a locknut to avoid loosening. For use with dry and oil-free air, the piston and cylinder tube must be prelubricated with a suitable long-life lubricant.

    D, d, H1, H2, S, h, D2, D3,
    2.8 2.3 1.25 1.45 3.2 5
    3.7 1.5 1.8 4.2 6.3
    10 3.7 1.5 1.8 5.2 8
    12 4.5 4.4 3.4 2.3 6.9 9.4
    16 4.5 4.4 3.4 2.3 6.9 13.2
    20 5.5 4.4 2.5 2.8 9.4 17
    25 6.4 5.4 3.5 10.8 21.2
    32 7.5 3.5 12.5 27
    40 8.5 4.5 17 34.9
    50 10 10 4.5 26 43.9
    63 12 10 4.5 26 56.6
    80 16 11.4 9.4 5.5 30 72
    100 20 12.9 10.9 6.5 35 91