B20-R
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.
Space-saving compact rod seal fits standard O-ring grooves. Outperforms O-rings: built-in active back-up ring for high pressure, OD interference fit eliminates twisting under dynamic motion.
| Surface Roughness | Rtmax | Ra |
| Sliding Surface | ≤ 2.5μm | ≤ 0.05-0.3μm |
| 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 Sizes | ||||||||
| d | D | G | Rmax | c | s* | |||
| f8 | H10 | +0.2 | ||||||
| Static | Dynamic | |||||||
| Range (mm) | ||||||||
| 11 | 100 | / | / | D-4.36 | 4.5 | 0.4 | 2 | f8/H8 |
| 100 | 150 | 11 | 20 | D-4.36 | 6.5 | 0.4 | 2 | f8/H8 |
| 150 | 250 | 20 | 40 | D-6.00 | 7.4 | 0.4 | 3 | f8/H8 |
| 250 | 400 | 40 | 100 | D-9.06 | 10.1 | 0.4 | 3.5 | f8/H8 |
| 400 | 600 | 100 | 300 | D-11.88 | 12.8 | 0.4 | 4.5 | f8/H8 |
| 600 | 300 | 600 | D-17.00 | 17.5 | 0.4 | 4.5 | f8/H8 | |
| The extrusion clearance values shown in the table are valid for temperatures under 70°C. Lower clearances shall be used at higher temperatures. | ||||||||
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.