| Surface roughness | Rtmax | Ra |
| Sliding surface | ≤ 2.5 µm | 0.1–0.5 µm |
| Groove bottom | ≤ 6.3 µm | ≤ 1.6 µm |
| Groove side | ≤ 15 µm | ≤ 3 µm |
| Bearing area: 50-95% and 0.5 Rz cutting depth (based on Cref = 0%) | ||
| Recommended Size mm | ||||||||
| D/H9 | d/h9 | d1/h8 | L/+0.2 | L1 | Rmax | C | S* | |
| ＞ | ≤ | |||||||
| 20 | 50 | D - 10 | D - 3 | 12.5 | 20.5 | 0.4 | 4 | 0.35 |
| 50 | 80 | D - 15 | D - 4 | 20 | 28 | 0.4 | 5 | 0.50 |
| 80 | 150 | D - 20 | D - 5 | 25 | 36 | 0.4 | 6 | 0.65 |
| 150 | 400 | D - 25 | D - 6 | 32 | 46 | 0.4 | 8.5 | 0.78 |
| 400 | 600 | D - 30 | D - 8 | 36 | 50 | 0.4 | 10 | 1.00 |
| The extrusion clearance values shown in the table above are applicable to temperatures below 70°C. Higher temperatures require lower extrusion clearances. | ||||||||
| Operating parameters | ||||||
| Material | Temperature | Speed | Pressure | |||
| Sealing ring | Elastomer | Retaining ring | Minimum °C | Maximum °C | Maximum m/s | Maximum bar (MPa) |
 XHPU |
 NBR |
|
-30 | +100 | 1 | 400(40) |
 XSPU |
||||||
 PTFE g |
1.2 | |||||
 PTFE b |
1.5 | |||||
 PTFE c |
 FKM |
 PEEK |
-20 | +200 | ||
| Ordering example | |
| Introduction | Piston seal TK09-F |
| D x d/d1x L/L1[mm] | 100 x 80/95 x 25/36 |
| Sealing material | PTFE b/NBR/POM |
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