Rod seal Prädifa series R3 | #R3902000252


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Rod seal Prädifa series R3 | #R3902000252

Rod seal for hydraulic cylinders, single-acting. Two-piece compact seal design with anti-extrusion ring. Enhanced sealing performance in non-pressurized conditions. High-temperature version available. ISO 5597.


Technical Specifications

  • Inside Diameter (mm): 18
  • Groove Width: 6.3
  • Minimum Working Temperature (C): -20
  • Outside Diameter (mm): 26
  • Maximum Working Temperature (C): 200
  • Element Height (mm): 5.8
  • Seal Material: V3664
  • Media: Hydraulic
  • Polymer Material Options: FKM (Fluorcarbon)
  • Maximum Operating Pressure: 315 bar
  • Minimum Operating Temperature: -25 to -20 °C
  • Maximum Operating Temperature: 100 to 200 °C
  • Maximum Surface Speed: 0.5 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Thermal Application Type: High Temperature (< 205 C) °C
  • Pressure Rating: High Pressure (< 500 bar) bar
Safety Warning

Item Information

The R3 rod seal is a compact seal with a secondary sealing lip and an anti-extrusion ring. This combination is characterized by smooth running properties, excellent sealing performance and high wear resistance even in harsh operating conditions. Due to their radial preloading, the sealing lips reliably wipe off the liquid film even in low-pressure conditions or non-pressurized movement of the rod.
As an FKM version the R3 rod seal can be used as a high-temperature variant for TPU rod seals.

• Enhanced sealing performance in non-pressurized conditions.
• Good wear resistance.
• Insensitive to pressure peaks.
• High temperature resistance in case of suitable compound selection.
• Improved lubrication due to pressure medium deposit in the dynamic contact area.
• High extrusion resistance.
• Excellent media resistance in case of suitable compound selection.
• Suitable compounds available for special requirements of the chemical process industry.
• Suitable compounds available for special requirements of the food processing industry.
• Dimensions according to ISO 5597.
• Installation in closed and undercut housings.

Range of application:
Sealing of piston rods in hydraulic cylinders.

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South Africa Headoffice

Parker Hannifin (Africa) Pty LTD

Sales Company South Africa

10 Berne Avenue

Aeroport

Kempton Park

Gauteng

South Africa

1620

Phone

0027 11 961 0700

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