Rod seal Prädifa series R3 | Product Series

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Rod seal Prädifa series R3 Rod seal Prädifa series R3

Rod seal Prädifa series R3

Where to Buy

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

  • Thermal Application Type: Standard Moderate Temperature (-35 to 100°C), High Temperature (< 205°C)
  • Media: Hydraulic
  • Polymer Material Options: Nitrile Butadiene Rubber (NBR, XNBR), Fluorocarbon Rubber (FKM, FPM)
  • 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
Safety Warning

Full Product Description

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.

Related Documents

Literature and Reference Materials
Hydraulic Seals--PTD3350
Compound Data Sheet NBR N3544
Installation Guidelines for Rod Seals--PTD3350
Polon®--Rod seal R3--PTD3350
Storage and Cleaning of Elastomer Seals--PTD3032
Product Demos & Tutorials
How to Properly Store and Clean Elastomer Seals
Mixing the right ingredients: Material Development at Parker-Prädifa
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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
R3902200252 20 28 5.8 6.3 -20 200 V3664
R3902400252 20 30 8 9 -20 200 V3664
R3902500252 22 30 5.8 6.3 -20 200 V3664
R3902600252 25 35 7.5 8 -20 200 V3664
R3902700252 28 40 9 10 -20 200 V3664
R3902800252 28 36 7 7.5 -20 200 V3664
R3902900252 25 33 5.8 6.3 -20 200 V3664
R3903500252 28 38 7.5 8 -20 200 V3664
R3903800252 32 42 7.5 8 -20 200 V3664
R3904000251 40 48 7.5 8 -20 200 V3664
R3904400252 36 46 7.5 8 -20 200 V3664
R3904500251 45 55 10 11 -20 200 V3664
R3904900251 40 50 7.5 8 -20 200 V3664
R3905100251 40 50 10 11 -20 200 V3664
R3905300251 45 55 7.5 8 -20 200 V3664
R3905600251 50 60 7.5 8 -20 200 V3664
R3905900251 56 71 12 13 -20 200 V3664
R3906000251 60 72 10 11 -20 200 V3664
R3906200251 63 78 11.5 12.5 -20 200 V3664
R3906900251 70 85 12 13 -20 200 V3664
R3908000251 80 95 11.5 12.5 -20 200 V3664
R3908500251 80 95 12 13 -20 200 V3664
R3909000251 90 105 12 13 -20 200 V3664
R3909200251 90 110 15 16 -20 200 V3664
R3909900251 100 120 15 16 -20 200 V3664
R3911000251 110 130 15 16 -20 200 V3664
R3912500251 125 145 16 17 -20 200 V3664
R3914000252 140 160 15 16 -20 200 V3664
R3916000251 160 185 19 20 -20 200 V3664
R3918000251 180 205 19 20 -20 200 V3664
R3920000251 200 225 19 20 -20 200 V3664
R3000900252 14 22 7 7.5 -25 100 N3544
R3001000252 10 18 5.8 6.3 -25 100 N3544
R3001200252 12 20 5.8 6.3 -25 100 N3544
R3001300252 12 20 7 7.5 -25 100 N3544
R3001500252 14 22 5.8 6.3 -25 100 N3544
R3001600252 14 24 7.5 8 -25 100 N3544
R3001700252 16 24 5.8 6.3 -25 100 N3544
R3002000252 18 26 5.8 6.3 -25 100 N3544
R3002200252 20 28 5.8 6.3 -25 100 N3544
R3002500252 22 30 5.8 6.3 -25 100 N3544
R3002600252 22 30 7 7.5 -25 100 N3544
R3002800252 22 32 7.5 8 -25 100 N3544
R3002900252 25 33 5.8 6.3 -25 100 N3544
R3003100252 25 35 7.5 8 -25 100 N3544
R3003300252 30 38 7 7.5 -25 100 N3544
R3003500252 28 38 7.5 8 -25 100 N3544
R3003800252 32 42 7.5 8 -25 100 N3544
R3003900252 32 44 10 11 -25 100 N3544
R3004000251 40 50 7.5 8 -25 100 N3544
R3004400252 36 46 7.5 8 -25 100 N3544
R3005300251 45 55 7.5 8 -25 100 N3544
R3005600251 50 60 7.5 8 -25 100 N3544
R3005800251 50 65 11.5 12.5 -25 100 N3544
R3005900251 56 71 12 13 -25 100 N3544
R3006200251 63 78 11.5 12.5 -25 100 N3544
R3006800251 70 82 10 11 -25 100 N3544
R3006900251 70 85 12 13 -25 100 N3544
R3007100251 60 80 16 17 -25 100 N3544
R3007700251 56 68 10 11 -25 100 N3544
R3008000251 80 95 12 13 -25 100 N3544
R3009000251 90 105 12 13 -25 100 N3544
R3010100251 100 120 15 16 -25 100 N3544
R3011000251 110 130 15 16 -25 100 N3544
R3012500251 125 145 15 16 -25 100 N3544
R3014000251 140 160 15 16 -25 100 N3544
R3018000251 180 205 19 20 -25 100 N3544
R3032000252 320 360 30 32 -25 100 N3544
R3901000252 10 18 5.8 6.3 -20 200 V3664
R3901200252 12 20 5.8 6.3 -20 200 V3664
R3901500252 14 22 5.8 6.3 -20 200 V3664
R3901600252 16 26 7.5 8 -20 200 V3664
R3901700252 16 24 5.8 6.3 -20 200 V3664
R3902000252 18 26 5.8 6.3 -20 200 V3664
R3902100252 22 32 7.5 8 -20 200 V3664
R3005500251 45 60 11 12.5 -25 100 N3544
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