| Surface roughness | Rtmax | Ra |
| Sliding surface | ≤ 2 µm | 0.05–0.3 µm |
| Trough bottom | ≤ 6.3 µm | ≤ 1.6 µm |
| Trough side | ≤ 15 µm | ≤ 3 µm |
| Bearing area: 50-95% and 0.5 Rz cutting depth (based on Cref = 0%) | ||
| Recommended Size mm | Minimum gap mm | ||||||||
| D/H9 | d/h10 | L/+0.2 | Rmax | C | s* | ||||
| ＞ | ≤ | 20 bar | 100 bar | 200 bar | 400bar | ||||
| 13 | 25 | D - 8 | 6.4 | 0.4 | 3.5 | 0.25 | 0.12 | 0.10 | 0.07 |
| 25 | 50 | D - 10 | 8.5 | 0.4 | 4.0 | 0.35 | 0.17 | 0.12 | 0.08 |
| 50 | 75 | D - 12 | 10.0 | 0.4 | 4.5 | 0.45 | 0.22 | 0.17 | 0.10 |
| 75 | 150 | D - 15 | 12.3 | 0.4 | 5.0 | 0.75 | 0.40 | 0.33 | 0.18 |
| 150 | 300 | D - 20 | 16.0 | 0.4 | 6.0 | 0.87 | 0.48 | 0.38 | 0.20 |
| 300 | 500 | D - 25 | 19.8 | 0.4 | 8.5 | 0.87 | 0.48 | 0.38 | 0.20 |
| 500 | 600 | D - 30 | 24.5 | 0.4 | 10.0 | 0.87 | 0.48 | 0.38 | 0.20 |
| The extrusion gap values shown in the table above are applicable to temperatures below 70°C. Higher temperatures require lower extrusion gaps. | |||||||||
| Operating parameters | ||||||
| Material | Temperature | Speed | Pressure | |||
| Sealing components | Elastomer | Minimum °C | Maximum °C | Maximum m/s | Maximum bar (MPa) | |
 PTFE v |
MVQ70 | -55 | +200 | 1.0 | 200 (20) | |
 PTFE g |
NBR70 | -30 | +100 | 400 (40) | ||
 PTFE b |
FPM75 | -20 | +200 | |||
 PTFE c |
EPDM70 | -50 | +150 | |||
 UHMWPE |
NBR70 | -30 | +90 | 0.5 | 200(20) | |
| FPM75 | -20 | |||||
| EPDM70 | -50 | |||||
| MVQ70 | -55 | |||||
| Ordering example | |
| Introduction | Piston seal TK07-F |
| D x d x L [mm] | 100 x 85 x 12.3 |
| Sealing material | PTFE b / FPM75 |
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