Parker Prädifa Rod Seals EU

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The Parker Prädifa EU self-retaining Ultrathan® seal/wiper performs two functions: sealing and wiping. The Ultrathan® material is characterized by extremely high wear resistance.

  • Due to application-optimized geometry and compounds suitable for use in oiled as well as in oil-free air (after initial lubrication on assembly).
  • Bi-functional element: seal and wiper.
  • Robust seal profile for harshest operating conditions.
  • Extreme wear resistance.
  • No risk of corrosion since the combined retainer and wiper part eliminates the need for additional wire circlips.
  • Long service life due to coordinated geometries of the functional lips and compound selection.
  • Smooth running due to the optimum lubricant-retaining sealing lip geometry.
  • Excellent media resistance in case of suitable compound selection.
  • Identical housing for E7, E8, E9, EU, EF, EN, EW, and ET.
  • Installation in open housings.
  • Low compression set.
  • The coordinated geometries of the seal and wiper lips achieve favorable friction coefficients and long service life.

Range of application

For piston rods in pneumatic cylinders.

Operating pressure ≤ 16 bar
Operating temperature -35 °C to +80 °C 1)
Sliding speed ≤ 1 m/s
Media Compressed air, both lubricated and oil-free (after greasing for fitting)
1) For higher temperatures, see profile E9.

Compounds

Standard: P5008, Ultrathan® (TPU) Compound (≈ 94 Shore A).

For low temperatures: P5009, Ultrathan® (TPU) Compound (≈ 94 Shore A).

Installation

The Parker Praedifa profile EU rod seal wiper is pushed into the housing with a circlip recess conform- ing to DIN 7993 (type B) and retained by the easy-to-snap in retainer ridge.

During assembly, care should be taken that neither the wiper nor the sealing lip is damaged by being pushed over any sharp edges.

d D H Order code
10 18 10.7 EU1018P5008
12 19 10 EU1219P5008
12 20 10.7 EU1205P5008
12 22 10.7 EU1222P5008
14 24 10.7 EU1424P5008
16 26 10.7 EU1626P5008
18 26 10.7 EU1826P5008
18 28 10.7 EU1828P5008
20 30 10.7 EU2029P5008
22 32 11.2 EU2205P5008
25 35 11.2 EU2535P5008
30 40 11.2 EU3040P5008
32 42 11.2 EU3242P5008
40 50 11.2 EU4050P5008
45 55 12.2 EU4555P5008
50 60 12.2 EU5060P5008
63 75 13 EU6375P5008

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