Rod seal/wiper Prädifa series EW | Product Series

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Rod seal/wiper Prädifa series EW

Rod seal/wiper Prädifa series EW

Rod seal and wiper for pneumatic cylinders. U-cup design. Combines the functions sealing, wiping and holding in place. Robust design for applications with high temperatures and risk of contamination.

Technical Specifications

  • Media: Pneumatic
  • Polymer Material Options: Fluorocarbon Rubber (FKM, FPM)
  • Maximum Operating Pressure: 16 bar
  • Minimum Operating Temperature: -10 °C
  • Maximum Operating Temperature: 150 °C
  • Maximum Surface Speed: 1 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Thermal Application Type: High Temperature (< 205°C)
  • Pressure Rating: Pneumatic Pressure (< 16 bar)
Safety Warning

Full Product Description

The self-retaining EW seal/wiper combines the properties of the proven E9 high-temperature seal with a metallic wiper for particularly dirt-prone and harsh environments.
Thus, the EW seal/wiper provides a scraper function in addition to the sealing function. It is used for scraping strongly adhering particles off the cylinder rod, thereby protecting the seal against excessive wear. The combination of the metallic wiper and wear-resistant sealing compound achieves considerably longer service life.

• 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.
• Good wear resistance.
• Robust seal profile for harshest operating conditions.
• High temperature resistance in case of suitable compound selection.
• Excellent media resistance in case of suitable compound selection.
• Identical housing for E7, E8, E9, EU, EF, EN, EW, ET.
• Easy snap assembly with assembly aids.

Range of application:
The seal/wiper EW is suitable for use in environments that are particularly prone to dirt and in high temperatures, such as crust breaker cylinders, which are used in aluminum production.

Related Documents

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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
EW162602001 16 26 13.5 13 -10 150 V3841
EW203002001 20 30 13.5 13 -10 150 V3841
EW253502001 25 35 13.9 14 -10 150 V3841
EW506002001 50 60 14.6 15 -10 150 V3841
EW203002002 20.0 30.0 13.5 13.0 -10 150 FKM
EW253502002 25.0 35.0 13.9 14.0 -10 150 FKM
EW324202002 32.0 42.0 14.2 14.0 -10 150 FKM
EW405002002 40.0 50.0 14.6 15.0 -10 150 FKM
EW162602002 16 26 13.5 13 -10 150 FKM

687PDC
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