A08-E
Product Name
A08-E
Classification
Piston Seal
Certification
ISO 9001, FDA, RoHS
TvnSeal Engineering Plastics Technology Co., Ltd. is a national high-tech enterprise specializing in the R&D and manufacturing of high-performance sealing materials and special polymer new materials.
O-ring preloaded asymmetric PTFE piston seal. Featuring low friction, it is applicable to both ultra-low and high speed operating conditions and enables precise positioning.

| Surface Roughness | Rtmax | Ra |
| Sliding Surface | ≤ 2μm | ≤ 0.05-0.2μm |
| Groove Bottom | ≤ 6.3μm | ≤ 1.6μm |
| Groove End Face | ≤ 15μm | ≤ 3μm |
| Additional Notes: Support Rate: 50-95%, Cutting Depth 0.5R (based on the reference condition of Cref=0%) | ||
| Standard Dimensions | Maximum Radial Extrusion Gap | |||||||||
| D | d | G | R | c | OD | s* | ||||
| H9 | h10 | +0.2 | 100bar | 200bar | 400bar | 600bar | ||||
| Range (mm) | ||||||||||
| 10 | 15 | D-4.9 | 2.2 | 0.4 | 2.5 | 1.78 | 0.3 | 0.20 | 0.15 | 0.05 |
| 15 | 40 | D-7.5 | 3.2 | 0.6 | 3.5 | 2.62 | 0.4 | 0.25 | 0.15 | 0.05 |
| 40 | 80 | D-11 | 4.2 | 1.0 | 4.5 | 3.53 | 0.4 | 0.25 | 0.20 | 0.10 |
| 80 | 133 | D-15.5 | 6.3 | 1.3 | 5.0 | 5.33 | 0.5 | 0.30 | 0.20 | 0.10 |
| 133 | 330 | D-21 | 8.1 | 1.8 | 6.0 | 7.00 | 0.6 | 0.35 | 0.25 | 0.15 |
| 330 | 670 | D-24.5 | 8.1 | 1.8 | 8.0 | 7.00 | 0.6 | 0.35 | 0.25 | 0.15 |
| 670 | 1000 | D-28 | 9.5 | 2.5 | 10.0 | 8.40 | 0.7 | 0.50 | 0.30 | 0.20 |
| 1000 | 3000 | D-38 | 13.8 | 3.0 | 12.0 | 12.00 | 1.0 | 0.70 | 0.60 | 0.30 |
| Additional Notes: * The extrusion gap values shown above are valid at a temperature of 80℃; if the temperature is higher, a smaller gap value shall be used. | ||||||||||
Applications
Chemical Industry
Used in pumps, valves, and piping systems for chemical processing plants.
Pharmaceutical
FDA-compliant seals for drug manufacturing and processing equipment.
Food Processing
Sealing solutions for food and beverage processing machinery.
Oil & Gas
High-pressure seals for oil drilling and refining equipment.
Automotive
Engine and transmission seals for automotive applications.
Aerospace
Precision seals for aerospace and aviation equipment.