B35-P
Product Name
B35-P
Classification
Piston Rod 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.
Space-saving rod seal with minimal dead volume, compliant for food & pharmaceutical use. OD interference fit eliminates dynamic twisting, widely used as O-ring replacement.

| 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%) | ||
| Recommended Dimensions (mm) | Maximum Radial Extrusion Gap | ||||||||
| d | D | G | Rmax | C | s* | ||||
| f8 | H10 | +0.2 | 20 bar | 100 bar | 200 bar | 400 bar | |||
| Range (mm) | |||||||||
| 5 | 10 | d+5 | 4.0 | 0.4 | 2.0 | 0.33 | 0.18 | 0.10 | 0.05 |
| 10 | 25 | d+6 | 4.5 | 0.4 | 3.0 | 0.33 | 0.18 | 0.10 | 0.05 |
| 25 | 50 | d+8 | 5.5 | 0.4 | 3.5 | 0.33 | 0.18 | 0.10 | 0.05 |
| 50 | 100 | d+10 | 6.5 | 0.4 | 4.0 | 0.37 | 0.23 | 0.15 | 0.10 |
| 100 | 150 | d+15 | 9.5 | 0.4 | 5.0 | 0.46 | 0.33 | 0.25 | 0.18 |
| 150 | 300 | d+20 | 12.5 | 0.4 | 6.0 | 0.54 | 0.38 | 0.33 | 0.25 |
| 300 | 500 | d+25 | 15.0 | 0.4 | 8.5 | 0.61 | 0.45 | 0.40 | 0.33 |
| 500 | 700 | d+30 | 17.5 | 0.4 | 10.0 | 0.67 | 0.50 | 0.45 | 0.40 |
| 700 | 1250 | d+35 | 22.0 | 0.4 | 13.0 | 0.77 | 0.50 | 0.45 | 0.40 |
| 1250 | 2000 | d+40 | 27.0 | 0.4 | 15.0 | 0.87 | 0.60 | 0.50 | 0.40 |
| 2000 | 4000 | d+60 | 32.0 | 0.4 | 18.0 | 0.97 | 0.70 | 0.50 | 0.40 |
| The extrusion clearance values shown in the table are valid for temperatures under 70℃. 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.