The Parker Prädifa C2 piston seal meets the requirements of the manufacturers of hydraulic and pneumatic equipment for seals with the smallest possible housings. Although cross-sections and heights are very small the sealing performance is excellent. Extremely low friction is experienced because of the short contact to the sealing surface area. For installation in non-lubricated pneumatic systems (dry air) we recommend our profile E4 which fits into the same housings.
- Good wear resistance.
- Easier
- Suitable for fully automatic
- Assembly on the one-part piston is possible
- High-temperature resistance in case of suitable compound
- 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
- Installation in closed and undercut
Range of application
Particularly recommended for pistons in hydraulic and pneumatic cylinders.
Operating pressure
Hydraulics ≤ 160 bar
Pneumatics ≤ 16 bar
Operating temperature
Hydraulics -25 °C to +100 °C
Pneumatics -25 °C to +80 °C
Sliding speed ≤ 0.5 m/s
1) Dependent upon cross-section and compound.
Compounds
Standard: N3584, NBR compound (≈ 80 Shore A).
For low temperatures: N8613, NBR compound (≈ 80 Shore A). For high temperatures: V3664, FKM compound (≈ 85 Shore A).
Installation
The Parker Praedifa profile C2 piston seals are manufactured undersized in relation to the nominal dimensions. Only after installation will the sealing lip diameter have the desired dimensions. This lip seal may easily be snapped into the grooves. Care should be taken that the seals are not pulled over sharp edges.
In the case of double-acting pistons, pressure peaks should be avoided. In such cases, sealing elements with larger cross-sections or other profiles with header rings should be used.
| D | d | H | L | d1 | Order code | D | d | H | L | d1 | Order code | |
| 4 | 1.5 | 1.7 | 2 | 3 | C20010N3584 | 28 | 18 | 8 | 8.5 | 23 | C22060N3584 | |
| 5 | 2 | 2.2 | 2.5 | 4 | C20014N3584 | 28 | 20 | 5.5 | 6 | 24 | C22065N3584 | |
| 6 | 2.5 | 2 | 2.3 | 4.5 | C20023N3584 | 30 | 18 | 8 | 8.5 | 24 | C23010N3584 | |
| 6 | 3 | 3 | 3.5 | 5 | C20025N3584 | 30 | 20 | 7 | 7.5 | 25 | C23015N3584 | |
| 7.5 | 4 | 2 | 2.3 | 6 | C20033N3584 | 30 | 22 | 5.5 | 6 | 26 | C23018N3584 | |
| 8 | 3 | 3.5 | 4 | 5.5 | C20035N3584 | 32 | 22 | 5 | 5.5 | 27 | C23025N3584 | |
| 8 | 5 | 4 | 4.5 | 7 | C20045N3584 | 32 | 22 | 7 | 7.5 | 27 | C23030N3584 | |
| 9.5 | 4.5 | 3.5 | 4 | 7 | C20065N3584 | 32 | 24 | 5.5 | 6 | 28 | C23035N3584 | |
| 10 | 3 | 4 | 4.5 | 6.5 | C21010N3584 | 35 | 25 | 7 | 7.5 | 30 | C23050N3584 | |
| 10 | 5 | 3.5 | 4 | 7.5 | C21020N3584 | 36 | 26 | 7 | 7.5 | 31 | C23055N3584 | |
| 10 | 6 | 4.2 | 4.7 | 8 | C21029N3584 | 37 | 21 | 12 | 13 | 29 | C23060N3584 | |
| 11 | 6 | 4 | 4.5 | 8.5 | C21035N3584 | 37 | 29 | 5.5 | 6 | 33 | C23063N3584 | |
| 12 | 6 | 4 | 4.5 | 9 | C21040N3584 | 38 | 28 | 7 | 7.5 | 33 | C23065N3584 | |
| 12 | 8 | 3 | 3.5 | 10 | C21045N3584 | 39.69 | 26.99 | 6.35 | 6.85 | 33.5 | C23093N3584 | |
| 13 | 7 | 4 | 4.5 | 10 | C21055N3584 | 40 | 30 | 7 | 7.5 | 35 | C24005N3584 | |
| 13.5 | 8 | 4 | 4.5 | 11 | C21058N3584 | 40 | 32 | 5.5 | 6 | 36 | C24010N3584 | |
| 14 | 6 | 5.5 | 6 | 10 | C21063N3584 | 45 | 35 | 7 | 7.5 | 40 | C24035N3584 | |
| 14 | 8 | 4 | 4.5 | 11 | C21066N3584 | 45 | 37 | 6 | 6.5 | 41 | C24047N3584 | |
| 15 | 7 | 5.5 | 6 | 11 | C21070N3584 | 46 | 36 | 7 | 7.5 | 41 | C24045N3584 | |
| 16 | 8 | 5.5 | 6 | 12 | C21080N3584 | 48 | 40 | 5.5 | 6 | 44 | C24065N3584 | |
| 16 | 10 | 4 | 4.5 | 13 | C21083N3584 | 50 | 36 | 10 | 11 | 43 | C25005N3584 | |
| 16 | 10 | 6 | 6.5 | 13 | C21086N3584 | 50 | 40 | 7 | 7.5 | 45 | C25010N3584 | |
| 17.5 | 11.7 | 3 | 3.5 | 14.8 | C21088N3584 | 50 | 42 | 8 | 8.5 | 46 | C25012N3584 | |
| 18 | 10 | 5 | 5.5 | 14 | C21091N3571 | 50.8 | 41.28 | 7.93 | 8.43 | 51 | C25016N3584 | |
| 18 | 10 | 5.5 | 6 | 14 | C21092N3584 | 52 | 36 | 12 | 13 | 44 | C25020N3584 | |
| 18 | 12 | 4.2 | 4.7 | 15 | C21093N3584 | 52 | 42 | 7 | 7.5 | 48 | C25025N3584 | |
| 19.05 | 10.5 | 5.5 | 6 | 15 | C21097N3584 | 55 | 45 | 7 | 7.5 | 50 | C25045N3584 | |
| 20 | 10 | 7 | 7.5 | 15 | C22005N3584 | 60 | 40 | 12 | 13 | 50 | C26005N3584 | |
| 20 | 12 | 5.5 | 6 | 16 | C22010N3584 | 60 | 50 | 7 | 7.5 | 55 | C26010N3584 | |
| 20 | 14 | 4.2 | 4.7 | 17 | C22012N3584 | 60 | 50 | 10 | 11 | 55 | C26011N3584 | |
| 22 | 14 | 5.5 | 6 | 18 | C22020N3584 | 62 | 46 | 12 | 13 | 52 | C26020N3584 | |
| 24 | 16 | 5.5 | 6 | 20 | C22030N3584 | 62 | 47 | 10 | 11 | 51.5 | C26023N3584 | |
| 25 | 17 | 5.5 | 6 | 21 | C22040N3584 | 62 | 52 | 7 | 7.5 | 57 | C26028N3584 | |
| 26 | 18 | 5.5 | 6 | 22 | C22050N3584 | 63 | 45 | 12 | 13 | 54 | C26040N3584 |
| D | d | H | L | d1 | Order code | D | d | H | L | d1 | Order code | |
| 63 | 53 | 7 | 7.5 | 58 | C26035N3584 | 135 | 115 | 14 | 15 | 125 | C2D020N3584 | |
| 65 | 49 | 12 | 13 | 57 | C26045N3584 | 136 | 116 | 14 | 15 | 126 | C2D025N3584 | |
| 65 | 53 | 10 | 11 | 59 | C26050N3584 | 140 | 115 | 18 | 19 | 127.5 | C2E010N3584 | |
| 65 | 55 | 7 | 7.5 | 60 | C26055N3584 | 140 | 120 | 14 | 15 | 130 | C2E015N3584 | |
| 67 | 57 | 7 | 7.5 | 62 | C26063N3584 | 140 | 125 | 10 | 11 | 132.5 | C2E020N3584 | |
| 68 | 58 | 7 | 7.5 | 63 | C26070N3584 | 145 | 130 | 10 | 11 | 137.5 | C2E040N3584 | |
| 70 | 50 | 14 | 15 | 60 | C27005N3584 | 150 | 135 | 10 | 11 | 142.5 | C2F015N3584 | |
| 70 | 54 | 12 | 13 | 62 | C27010N3584 | 155 | 130 | 18 | 19 | 142.5 | C2F025N3584 | |
| 70 | 58 | 8.5 | 9.5 | 64 | C27020N3584 | 155 | 135 | 15 | 16 | 145 | C2F030N3582 | |
| 74 | 62 | 8.5 | 9.5 | 68 | C27035N3584 | 160 | 130 | 25 | 26 | 145 | C2G011N3584 | |
| 75 | 55 | 12 | 13 | 65 | C27045N3584 | 160 | 140 | 14 | 15 | 150 | C2G015N3584 | |
| 75 | 59 | 12 | 13 | 67 | C27047N3584 | 160 | 145 | 10 | 11 | 152.5 | C2G020N3584 | |
| 75 | 63 | 8.3 | 9.5 | 69 | C27050N3584 | 175 | 145 | 18 | 19 | 160 | C2H010N3584 | |
| 80 | 60 | 14 | 15 | 70 | C28005N3584 | 175 | 155 | 14 | 15 | 165 | C2H020N3584 | |
| 80 | 63 | 16 | 17 | 71.5 | C28008N3584 | 180 | 160 | 14 | 15 | 170 | C2J015N3584 | |
| 80 | 64 | 8 | 8.5 | 72 | C28011N3584 | 190 | 170 | 14 | 15 | 180 | C2K015N3584 | |
| 80 | 68 | 8.5 | 9.5 | 74 | C28015N3584 | 200 | 180 | 14 | 15 | 190 | C2L015N3584 | |
| 85 | 73 | 8.5 | 9.5 | 79 | C28045N3584 | 220 | 200 | 14 | 15 | 210 | C2M015N3584 | |
| 90 | 70 | 10 | 13 | 80 | C29015N3584 | 225 | 200 | 17.5 | 18.5 | 212.5 | C2M025N3584 | |
| 90 | 78 | 8.3 | 9.5 | 84 | C29025N3584 | 240 | 220 | 14 | 15 | 230 | C2N015N3584 | |
| 98.43 | 85.72 | 9.50 | 10.32 | 92 | C29085N3584 | 250 | 230 | 14 | 15 | 240 | C2N030N3584 | |
| 100 | 80 | 13 | 16 | 90 | C2A010N3584 | 260 | 240 | 14 | 15 | 250 | C2O015N3584 | |
| 100 | 85 | 9.3 | 10.5 | 92.5 | C2A014N3584 | 270 | 250 | 14 | 15 | 260 | C2O070N3510 | |
| 100 | 85 | 10 | 13 | 92.5 | C2A015N3584 | 280 | 260 | 14 | 15 | 270 | C2P015N3584 | |
| 100 | 88 | 8.3 | 9.5 | 94 | C2A020N3584 | 295 | 275 | 14 | 15 | 285 | C2P095N3510 | |
| 100 | 90 | 7 | 7.5 | 95 | C2A025N3584 | 300 | 280 | 15 | 16 | 290 | C2Q010N3584 | |
| 105 | 85 | 15 | 16 | 95 | C2A040N3584 | 315 | 290 | 17 | 18 | 302.5 | C2Q020N3584 | |
| 110 | 95 | 10 | 11 | 102.5 | C2B010N3584 | 350 | 320 | 21 | 22 | 335 | C2Q030N3584 | |
| 115 | 95 | 14 | 15 | 105 | C2B015N3584 | 360 | 340 | 14 | 15 | 350 | C2Q060N3584 | |
| 120 | 100 | 15 | 16 | 110 | C2C015N3584 | |||||||
| 120 | 105 | 10 | 11 | 112.5 | C2C017N3584 | |||||||
| 125 | 105 | 16 | 17 | 115 | C2C024N3584 | |||||||
| 125 | 110 | 10 | 11 | 117.5 | C2C025N3584 | |||||||
| 130 | 115 | 10 | 11 | 122.5 | C2D010N3584 |
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