High temperature resistant carbon fiber gland packing ring is  braided  by  high  temperature  carbon  fiber impregnated with special  lubricant and  blocking  agent through the  heart.The  packing  is  firm,flexible  and  stable  in  structure, which  overcomes  the  shortcomings  of  traditional  carbon  fiber materials,and can effectively prevent the penetration of gas and  liquid.high carbon packing has the advantages of stable chemical  properties,good  lubrication  performance,extremely  low  friction coefficient,high  thermal  conductivity  and  protective  effect  on shaft rod,which is suitable for seals of high temperature and high pressure valves.

| Volume Density | g/cm³ | ≥1.1 | |
| Temperature
Tolerance Loss |
345±10 | ℃ | ≤6 |
| Compression Rate | % | 20~45 | |
| Rebound Rate | % | ≥30 | |
| Coefficient of Friction | ≤0.15 | ||
| Abrasion Volume | g | ≤0.1 | |
| Acid  Loss   (5%H₂SO₄) | % | ≤3 | |
| Alkali Loss | 25%NaOH | % | ≤3 |
| 5%NaOH | % | – | |
| performance | parameter |
| Maximum Temperature | 550℃(Steam Environment)
310℃(Oxidation Environment) |
| Maximum Linear Velocity | 15m/s |
| PH Value Range | 1-13 |
| Pump Pressure | 30kg/cm² |
| Valve Pressure | 250kg/cm² |
| Specification(Side  Length of Packing) | 3.0 | 4.0 | 5.0 | 6.0 | 8.0 | 10.0 | 12.0 | 14.0 | 16.0 | 18.0 | 20.0 | 22.0 | 25.0 |
| Limit Deviation | ±0.2 | ±0.3 | ±0.5 | ±0.7 | ±1.0 | ||||||||






