A19-F
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.
Finger spring preloaded asymmetric PTFE piston seal. It features low friction and excellent dry-running performance, along with superior chemical and heat resistance, and is mainly applied in chemical, pharmaceutical and food industries.
| Surface Roughness | Rtmax | Ra |
| Sliding Surface | ≤ 2.5μm | ≤ 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 | s* | |||||
| H9 | h10 | +0.2 | 20bar | 100bar | 200bar | 300bar | 400bar | |||
| Range (mm) | ||||||||||
| 10 | 18 | D-4.5 | 3.6 | 0.3 | 1.13 | 0.25 | 0.12 | 0.10 | 0.08 | 0.07 |
| 18 | 50 | D-6.2 | 4.8 | 0.3 | 1.55 | 0.35 | 0.17 | 0.12 | 0.10 | 0.08 |
| 50 | 120 | D-9.4 | 7.1 | 0.3 | 2.35 | 0.45 | 0.22 | 0.17 | 0.12 | 0.10 |
| 120 | 630 | D-12.2 | 9.5 | 0.3 | 3.05 | 0.6 | 0.31 | 0.25 | 0.15 | 0.12 |
| 630 | 3000 | D-19 | 15 | 0.3 | 4.75 | 0.87 | 0.48 | 0.38 | 0.28 | 0.20 |
| * The extrusion gap values shown above are valid at 80℃. If the operating temperature is higher, smaller gap values shall be adopted. | ||||||||||
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.