The Parker Prädifa Ultrathan® V1 O-ring is an alternative to conventional rubber elastomer O-rings.
Due to the extrusion resistance of the polyurethane compounds, there is no need to
use a back-up ring at higher or pulsating pressures. By eliminating the need for backup rings the required width of the groove is reduced.
Due to its high wear resistance, a polyurethane O-ring is also suitable for dynamic pneumatics applications. Very good results have been achieved, for instance, in
pneumatic valves for sealing pilot and main control pistons.
- Robust seal profile for harshest operating conditions.
- Extreme wear resistance.
- Suitable for fully automatic installation.
- Insensitive to pressure peaks.
- 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.
- Installation in closed and undercut housings.
- Can be used in existing O-ring grooves.
- Additional sizes of machined products available on short notice.
Range of application
Range of application The Parker Praedifa Ultrathan® O-rings are used when the physical properties of other compounds are insufficient. Mainly for the sealing of cylinders, controls, and valves.
Operating pressure ≤ 600 bar 1)
Operating temperature
Hydraulics -35 °C to +100 °C
In water, HFA and HFB fluids -35 °C to +50 °C
Pneumatics -35 °C to +80 °C
Sliding speed ≤ 0.5 m/s
Media Hydraulic oils based on mineral oil, HFA, and HFB fluids
1) With reduced extrusion gap and suitable cross-section.
Compounds
The compound Ultrathan® P5008 is a Parker standard material based on polyurethane
with a Shore A hardness of approx. 93. Its main advantages in comparison with other
polyurethane materials currently available on the market are the increased heat resistance and the lower compression set.
For fluids containing water, we recommend our hydrolysis-resistant compounds
P5000, P5001, P5012, and P5070.
Installation
Due to the higher modulus of the polyurethane compounds, the housings are slightly
different from those of standard O-rings.
All edges should be rounded by at least R = 0.1.
In the case of special applications, please discuss your problems with our consultancy service.
Polyurethane O-rings show no tendency to twisting.
| d | S | Item number | d | S | Item number | ||
| 1,45 | 0,9 | V1 0145 P5008 | 27 | 2.5 | V1 2575 P5008 | ||
| 1.78 | 1.7 | V1 0067 P5008 | 27,3 | 2,4 | V1 2605 P5008 | ||
| 2.5 | 1.2 | V1 110 P5008 | 28 | 2 | V1 2620 P5008 | ||
| 2.9 | 1.8 | V1 0140 P5008 | 28 | 3 | V1 2630 P5008 | ||
| 3 | 1.5 | V1 0151 P5008 | 28 | 4 | V1 2640 P5008 | ||
| 3.2 | 1.8 | V1 0166 P5008 | 28,17 | 3,53 | V1 2658 P5008 | ||
| 3.4 | 1.9 | V1 0180 P5008 | 28.24 | 2.62 | V1 2664 P5008 | ||
| 3.5 | 1.2 | V1 0185 P5008 | 29.2 | 3 | V1 2742 P5008 | ||
| 4 | 1.5 | V1 0208 P5008 | 29.74 | 2.95 | V1 2764 P5008 | ||
| 4 | 2 | V1 0212 P5008 | 29.87 | 1.78 | V1 2780 P5008 | ||
| 4 | 2,15 | V1 0214 P5008 | 30 | 2 | V1 3010 P5008 | ||
| 4.2 | 1.9 | V1 0235 P5008 | 30 | 4 | V1 3030 P5008 | ||
| 4.6 | 2 | V1 0263 P5008 | 30 | 6 | V1 3050 P5008 | ||
| 5 | 1.5 | V1 0285 P5008 | 30.3 | 2.4 | V1 3073 P5008 | ||
| 5 | 2 | V1 0291 P5008 | 31.54 | 3.53 | V1 3145 P5008 | ||
| 5 | 2.5 | V1 0294 P5008 | 32 | 2 | V1 3158 P5008 | ||
| 5.28 | 1.78 | V1 0305 P5008 | 32 | 3 | V1 3168 P5008 | ||
| 5.3 | 2.4 | V1 0310 P5008 | 32 | 4 | V1 3178 P5008 | ||
| 5.7 | 1.9 | V1 0320 P5008 | 33 | 2 | V1 3220 P5008 | ||
| 6 | 2 | V1 0335 P5008 | 33 | 3.5 | V1 3235 P5008 | ||
| 6.3 | 2.4 | V1 0362 P5008 | 34.2 | 3 | V1 3351 P5008 | ||
| 6.4 | 2 | V1 0367 P5008 | 34.52 | 3.53 | V1 3361 P5008 | ||
| 6.7 | 2 | V1 0379 P5008 | 34.59 | 2.62 | V1 3355 P5008 | ||
| 7 | 2 | V1 0397 P5008 | 35 | 2 | V1 3370 P5008 | ||
| 7 | 2.4 | V1 0399 P5008 | 35 | 3 | V1 3380 P5008 | ||
| 7.3 | 2.4 | V1 0430 P5008 | 35.2 | 3 | V1 3415 P5008 | ||
| 7.5 | 2 | V1 0443 P5008 | 36 | 2 | V1 3430 P5008 | ||
| 8 | 1.65 | V1 0484 P5008 | 36 | 3.53 | V1 3446 P5008 | ||
| 8 | 2 | V1 0485 P5008 | 37 | 4 | V1 3540 P5008 | ||
| 8 | 2.5 | V1 0490 P5008 | 37.69 | 3.53 | V1 3579 P5008 | ||
| 8,3 | 2,4 | V1 0525 P5008 | 38 | 2 | V1 3595 P5008 | ||
| 8,6 | 2,4 | V1 0528 P5008 | 39 | 2 | V1 3650 P5008 | ||
| 9 | 1.5 | V1 0562 P5008 | 39.2 | 3 | V1 3683 P5008 | ||
| 9 | 2 | V1 0566 P5008 | 40 | 2 | V1 4015 P5008 | ||
| 9.19 | 2.62 | V1 0603 P5008 | 40.2 | 3 | V1 4077 P5008 | ||
| 9.25 | 1.78 | V1 0615 P5008 | 40.64 | 5.33 | V1 4086 P5008 | ||
| 9.3 | 2.4 | V1 0620 P5008 | 40,82 | 5,33 | V1 4294 P5008 | ||
| 10 | 2 | V1 1010 P5008 | 44 | 3 | V1 4305 P5008 | ||
| 10 | 2.5 | V1 1015 P5008 | 45 | 3 | V1 4400 P5008 | ||
| 10 | 3 | V1 1020 P5008 | 45 | 3,5 | V1 4410 P5008 | ||
| 10.3 | 2.4 | V1 1045 P5008 | 46.99 | 5.33 | V1 4514 P5008 | ||
| 10.77 | 2.62 | V1 1059 P5008 | 47 | 2 | V1 4515 P5008 | ||
| 10.82 | 1.78 | V1 1065 P5008 | 48.9 | 2.62 | V1 4645 P5008 | ||
| 11 | 2 | V1 1074 P5008 | 50 | 2 | V1 5015 P5008 | ||
| 11 | 3 | V1 1085 P5008 | 50 | 3 | V1 5025 P5008 | ||
| 11.3 | 2.4 | V1 1115 P5008 | 50.16 | 5.33 | V1 5066 P5008 | ||
| 11.3 | 2.5 | V1 1117 P5008 | 50.2 | 3 | V1 5069 P5008 | ||
| 12 | 2 | V1 1146 P5008 | 53.34 | 5.33 | V1 5274 P5008 | ||
| 12 | 2.5 | V1 1150 P5008 | 54 | 3 | V1 5300 P5008 | ||
| 12 | 3 | V1 1155 P5008 | 55 | 4 | V1 5360 P5008 | ||
| 12.1 | 2.7 | V1 1182 P5008 | 56 | 3 | V1 5410 P5008 | ||
| 12.3 | 2.4 | V1 1190 P5008 | 56 | 6 | V1 5422 P5008 | ||
| 12.37 | 2.62 | V1 1194 P5008 | 59 | 3.53 | V1 5580 P5008 | ||
| 12.42 | 1.78 | V1 1200 P5008 | 59.69 | 5.33 | V1 5604 P5008 | ||
| 13 | 2 | V1 1219 P5008 | 60 | 3 | V1 6020 P5008 | ||
| 13 | 3 | V1 1227 P5008 | 60 | 4 | V1 6030 P5008 | ||
| 13.3 | 2.4 | V1 1253 P5008 | 60 | 5 | V1 6040 P5008 | ||
| 13.3 | 2.5 | V1 1255 P5008 | 64 | 3 | V1 6285 P5008 | ||
| 13.94 | 2.62 | V1 1269 P5008 | 64.2 | 5.7 | V1 6322 P5008 | ||
| 13,59 | 2,7 | V1 1271 P5008 | 65 | 5 | V1 6370 P5008 | ||
| 14 | 1.78 | V1 1284 P5008 | 66 | 5.33 | V1 6443 P5008 | ||
| 14 | 2 | V1 1287 P5008 | 68 | 2 | V1 6540 P5008 | ||
| 14 | 3 | V1 1298 P5008 | 68 | 3.53 | V1 6551 P5008 | ||
| 14.03 | 2.61 | V1 1312 P5008 | 69,2 | 5,7 | V1 6654 P5008 | ||
| 15 | 3 | V1 1365 P5008 | 69.21 | 5.33 | V1 6655 P5008 | ||
| 15.3 | 2.4 | V1 1397 P5008 | 69.52 | 2.62 | V1 6677 P5008 | ||
| 15.54 | 2.62 | V1 1415 P5008 | 70 | 3 | V1 7020 P5008 | ||
| 15.6 | 1.78 | V1 1418 P5008 | 70 | 5 | V1 7040 P5008 | ||
| 16 | 2 | V1 1435 P5008 | 73 | 2 | V1 7277 P5008 | ||
| 16.2 | 2 | V1 1478 P5008 | 75 | 3 | V1 7340 P5008 | ||
| 16.3 | 2.4 | V1 1480 P5008 | 75.8 | 3.53 | V1 7391 P5008 | ||
| 16.4 | 2 | V1 1483 P5008 | 78 | 5 | V1 7835 P5008 | ||
| 16.9 | 2.7 | V1 1505 P5008 | 80 | 3 | V1 8020 P5008 | ||
| 17 | 2 | V1 1520 P5008 | 80 | 5 | V1 8040 P5008 | ||
| 17 | 3 | V1 1530 P5008 | 82.14 | 3.53 | V1 8168 P5008 | ||
| 17.12 | 2.62 | V1 1556 P5008 | 85 | 5 | V1 8275 P5008 | ||
| 18 | 2 | V1 1575 P5008 | 89.2 | 5.7 | V1 8485 P5008 | ||
| 18.2 | 3 | V1 1615 P5008 | 90 | 5 | V1 9040 P5008 | ||
| 18.4 | 2.7 | V1 1622 P5008 | 91.4 | V1 9113 P5008 | |||
| 18.64 | 3.53 | V1 1638 P5008 | 95 | 5 | V1 9330 P5008 | ||
| 18.72 | 2.62 | V1 1640 P5008 | 99.6 | 5.7 | V1 9585 P5008 | ||
| 19 | 2 | V1 1670 P5008 | 100 | 5.33 | V1 A043 P5008 | ||
| 19 | 2.5 | V1 1675 P5008 | 100.97 | 5.33 | V1 A089 P5008 | ||
| 19.2 | 3 | V1 1730 P5008 | 107,28 | 5,33 | V1 A419 P5008 | ||
| 19.3 | 2.4 | V1 1740 P5008 | 109,2 | 5,7 | V1 A495 P5008 | ||
| 19.4 | 2.1 | V1 1947 P5008 | 109,6 | 5,7 | V1 A530 P5008 | ||
| 20 | 2 | V1 2015 P5008 | 110 | 5 | V1 B030 P5008 | ||
| 20 | 2.5 | V1 2020 P5008 | 110.49 | 5.33 | V1 B066 P5008 | ||
| 20 | 3 | V1 2025 P5008 | 112 | 6 | V1 B117 P5008 | ||
| 20,22 | 3,53 | V1 2090 P5008 | 114.6 | 5.7 | V1 B216 P5008 | ||
| 20,29 | 2,62 | V1 2099 P5008 | 116.84 | 6.99 | V1 B297 P5008 | ||
| 20.3 | 2.4 | V1 2105 P5008 | 119.6 | 5.7 | V1 B398 P5008 | ||
| 21 | 3.53 | V1 2141 P5008 | 120 | 4 | V1 C030 P5008 | ||
| 21.3 | 2.4 | V1 2167 P5008 | 120 | 5 | V1 C040 P5008 | ||
| 21.3 | 3.6 | V1 2170 P5008 | 120,02 | 5,33 | V1 C072 P5008 | ||
| 21.82 | 3.53 | V1 2181 P5008 | 124.6 | 5.7 | V1 C307 P5008 | ||
| 21.95 | 1.78 | V1 2195 P5008 | 126,37 | 6,99 | V1 C363 P5008 | ||
| 22 | 1.5 | V1 2204 P5008 | 129.54 | 5.33 | V1 C480 P5008 | ||
| 22 | 2 | V1 2208 P5008 | 130 | 5.33 | V1 D039 P5008 | ||
| 22.2 | 3 | V1 2255 P5008 | 134.6 | 5.7 | V1 D185 P5008 | ||
| 23 | 2.5 | V1 2273 P5008 | 135 | 5 | V1 D205 P5008 | ||
| 23 | 3 | V1 2278 P5008 | 136,12 | 3,6 | V1 D276 P5008 | ||
| 23.47 | 2.62 | V1 2313 P5008 | 145 | 10 | V1 E235 P5008 | ||
| 23,5 | 3,6 | V1 2317 P5008 | 151.77 | 6.99 | V1 F085 P5008 | ||
| 24 | 2 | V1 2330 P5008 | 152 | 5 | V1 F123 P5008 | ||
| 24 | 2.5 | V1 2335 P5008 | 158 | 5.7 | V1 F292 P5008 | ||
| 24.99 | 3.53 | V1 2394 P5008 | 178 | 5.7 | V1 H240 P5008 | ||
| 25 | 2 | V1 2405 P5008 | 190 | 5 | V1 K035 P5008 | ||
| 25 | 5 | V1 2435 P5008 | 196,22 | 6,99 | V1 K247 P5008 | ||
| 25.2 | 3 | V1 2477 P5008 | 200 | 5 | V1 L025 P5008 | ||
| 26 | 2 | V1 2497 P5008 | 202.57 | 6.99 | V1 L073 P5008 | ||
| 26.2 | 3 | V1 2540 P5008 | 225 | 5 | V1 M135 P5008 | ||
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