Parker Prädifa Rod Seals R3

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The Parker Prädifa 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 Parker Praedifa R3 rod seal can be used as a high-temperature variant for TPU rod seals.

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

Range of application

Sealing of piston rods in hydraulic cylinders.

Operating pressure                                          ≤ 315 bar

Operating temperature                                    -30 °C to +100 °C

Sliding speed                                                    ≤ 0.5 m/s

Compounds

Rubber part:

Standard: N3544, NBR compound (≈ 88 Shore A).

For high temperatures: V3664, FKM compound (≈ 85 Shore A). Glide ring: Polon® 062, modified PTFE + 60 % bronze.

Installation

This rod seal profile R3 is manufactured with a slightly oversized outer diameter, thus ensuring a tight fit in the groove. The preload at the inner diameter necessary for the functioning of the seal will only be generated after installation.

The working life of the seal is mainly influenced by the max. gap at the pressure-opposite of the sealing element.

d D H L d1 ISO1) Order code d D H L d1 ISO1) Order code
10 18 5.8 6.3 10.2 R3001000252 36 46 7.5 8 36.3 R3004400252
12 20 5.8 6.3 12.2 R3001200252 36 46 10 11 36.3 R3004500252
12 20 7 7.5 12.2 R3001300252 40 48 7.5 8 40.4 R3054000251
14 22 5.8 6.3 14.2 R3001500252 40 50 7.5 8 40.4 R3004000251
14 22 7 7.5 14.2 R3000900252 40 50 10 11 40.4 R3005000251
14 24 7.5 8 14.2 R3001600252 40 55 10 11 40.4 R3000600252
15 24 7 7.5 15.2 R3000800252 42 54 10 11 42.4 R3003700251
16 24 5.8 6.3 16.2 R3001700252 45 53 5.8 6.3 45.4 R3007600251
16 26 7.5 8 16.2 R3001800252 45 53 8 9 45.4 R3007300251
18 25 7 7.5 18.2 R3001900252 45 55 7.5 8 45.4 R3005300251
18 26 5.8 6.3 18.2 R3002000252 45 55 10 11 45.4 R3005400251
20 28 5.8 6.3 20.3 R3002200252 45 60 11 12.5 45.4 R3005500251
20 30 8 9 20.3 R3002400252 50 60 7.5 8 50.4 R3005600251
22 30 5.8 6.3 22.3 R3002500252 50 65 11.5 12.5 50.4 R3005800251
22 30 7 7.5 22.3 R3002600252 52 68 12 13 52.4 R3005200252
22 32 7.5 8 22.3 R3002800252 55 63 7 7.5 55.4 R3006400251
25 33 5.8 6.3 25.3 R3002900252 56 68 10 11 56.4 R3007700251
25 33 7 7.5 25.3 R3003000252* 56 71 12 12.5 56.4 R3005900251
25 35 7.5 8 25.3 R3003100252 56 76 15 16 56.4 R3006000251
25 37 10 11 25.3 R3003200252 60 68 8 9 60.4 R3006600251
25 40 10 11 25.3 R3053100252 60 70 7.5 8 60.4 R3006700251
28 36 7 7.5 28.3 R3003400252 60 72 10 11 60.4 R3006100251
28 38 7.5 8 28.3 R3003500252 60 75 12 13 60.4 R3006500251
28 38 8 9 28.3 R3003600252 60 80 16 17 60.4 R3007100251
28 40 9 10 28.3 R3002700252 63 78 11.5 12.5 63.4 R3006200251
30 38 7 7.5 30.3 R3003300252 70 82 10 11 70.4 R3006800251
30 40 10 11 30.3 R3000400252 70 85 12 12.5 70.4 R3006900251
32 42 7.5 8 32.3 R3003800252 70 90 15 16 70.4 R3007000251
32 44 10 11 32.3 R3003900252 80 92 10 11 80.4 R3007900251
32 45 10 11 32.3 R3004900252 80 95 12 12.5 80.4 R3008000251
35 43 7 7.5 35.3 R3053500252 90 105 12 12.5 90.4 R3009000251
35 45 8.5 9.5 35.3 R3005000252 100 115 12 13 100.4 R3001000251
36 44 7 7.5 36.3 R3004200252 100 120 15 16 100.4 R3010100251
36 44 8 9 36.3 R3004300252 100 125 19 20 100.4 R3010200251

 

d D H L d1 ISO1) Order code
110 130 15 16 110.4 R3011000251
125 145 15 16 125.4 R3012500251
130 150 15 16 130.4 R3013000251
140 160 15 16 140.4 R3014000251
180 205 19 20 180.4 R3018000251
200 225 19 20 200.4 R3020000251
280 310 23 25 280.4 R3028000251
320 360 30 32 320.4 R3032000252
360 400 30 32 360.4 R3036000252

Merk

Parker

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