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Products Description
PTFE Carbon Fiber Seals In Mechanical
PTFE carbon fiber seals are widely used in civil and military mechanical seals. PTFE (polytetrafluoroethylene) is an excellent non-metallic sealing material with the following characteristics:
- Good chemical stability: PTFE has chemical resistance and can withstand corrosion from various acids, alkalis, solvents, and oxidants. This makes it widely used in mechanical seals dealing with corrosive media.
- Excellent temperature resistance: PTFE has good high-temperature resistance and can maintain its physical and chemical properties over a wide temperature range. It remains soft and elastic at very low temperatures while also maintaining stability at high temperatures.
- Low friction coefficient: PTFE has an extremely low friction coefficient, allowing it to provide excellent sealing effects in mechanical seals. It reduces friction and wear, energy loss, and heat generation.
- Good sealing performance: PTFE carbon fiber seals have good sealing performance and can effectively prevent medium leakage and external impurities from entering.
In the civil sector, PTFE carbon fiber seals are commonly used in mechanical equipment seals in chemical, pharmaceutical, food processing, and energy industries, such as pumps, valves, pipes, and compressors.
In the military field, PTFE carbon fiber seals are also widely used in mechanical seals in military equipment and aerospace fields. Due to its excellent chemical stability, high-temperature resistance, and low friction properties, PTFE carbon fiber seals can maintain stability under harsh environmental conditions and ensure equipment reliability and safety.
PTFE carbon fiber seals in mechanical are widely used in valve sealing. Valve sealing requires reliable sealing performance under different media and working conditions, and PTFE carbon fiber seals can meet these requirements.
| Property | Unit | Test Method | Test Parameter | Typical Value |
| specific gravity | g/cm3 | ASTM D792 | 2.13 | |
| tensile strength | MPa | ASTM D638 | Microtensile specimen of ASTM D1708, speed of testing 0.8mm/s | 28 |
| ultimate elongation | % | ASTM D638 | Microtensile specimen of ASTM D1708, speed of testing 0.8mm/s | 301 |
| Compressive strength 1% deformation |
MPa | ASTM D695 | 4.58 | |
| Hardness | Shore D | ASTM D2240 | (Shore D - 15 sec) | 60 |
| Friction coefficient - dynamic | ASTM D 3028 (1) | speed 0,08m/s load 0,1 N/mm2, sliding surface steel roughness Ra = 0,5 micron |
0.06 | |
| Friction coefficient - static | ASTM D 3028 (2) | 0.09 | ||
| Modulus of Elasticity | MPa | ASTM D638 | 279 | |
|
Dielectric Strength (short time Test) |
kV/mm | ASTM D149 | 36 |
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