Rod seal/wiper Prädifa series ET, Ultrathan® | Product Series

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Rod seal/wiper Prädifa series ET, Ultrathan®

Rod seal/wiper Prädifa series ET, Ultrathan®

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Rod seal and wiper for non-rotating pneumatic cylinders with flattened piston rods. U-cup design. Combines the functions sealing, wiping and holding in place. Robust design with extreme wear resistance.

Technical Specifications

  • Media: Pneumatic
  • Polymer Material Options: Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®)
  • Maximum Operating Pressure: 10 bar
  • Minimum Operating Temperature: -35 to -25 °C
  • Maximum Operating Temperature: 80 to 85 °C
  • Maximum Surface Speed: 1 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Thermal Application Type: Standard Moderate Temperature (-35 to 100°C)
  • Pressure Rating: Pneumatic Pressure (< 16 bar)
Safety Warning

Full Product Description

The self-retaining ET Ultrathan® seal/wiper for flattened piston rods of non-rotating pneumatic cylinders is the oval counterpart of the round standard EU profile. It performs two functions: sealing and wiping.
The Utrathan® 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.
• 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 optimum lubricant-retaining sealing lip geometry.
• Excellent media resistance in case of suitable compound selection.
• Identical housing for E7, E8, E9, EU, EF 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 flattened rods of pneumatic cylinders protected against rotation.

The ET rod seal/wiper is available in the following compounds:
P5008 - Industrial applications
P5009 - Industrial applications/low temperatures
P5000 - Food applications (FDA approval)
P5001 - Bio-degradable media

Related Documents

Product Demos & Tutorials
How to Properly Store and Clean Elastomer Seals
Mixing the right ingredients: Material Development at Parker-Prädifa
Parker Final Exam in Physics / Sealing Systems Put to the Test
Literature and Reference Materials
Pneumatic Seals--PTD3351
Compound Data Sheet TPU P5008
Installation Guidelines for Rod Seals--PTD3351
Rod seal/wiper ET--PTD3351
Storage and Cleaning of Elastomer Seals--PTD3032
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Products Inside Diameter (mm) Outside Diameter (mm) Element Height (mm) Groove Width Minimum Working Temperature (C) Maximum Working Temperature (C) Seal Material
ET1222P5008 12 22 10.7 13 -35 80 P5008
ET1626P5008 16 26 10.7 13 -35 80 P5008
ET2030P5008 20 30 10.7 13 -35 80 P5008
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