Gland Packing
Graphite-coated Carbon Packing
Made by heart-braiding pre-oxidized carbon fiber impregnated with special lubricant and blocking agent, then impregnated with graphite-PTFE. Both strong and flexible with stable structure, it effectively blocks gas and liquid penetration. Chemically stable, well lubricated, extremely low friction and highly conductive with shaft protection. Suitable for high-temperature, high-pressure pump and valve sealing in steam, water, solvent, acid and alkali; not recommended for strong oxygen media.
Inquire about Graphite-coated Carbon Packing| Property | Unit | Specification |
|---|---|---|
| bulk density | g/cm³ | ≥ 1.1 |
| loss on heating | ℃ | 260±10 |
| compression ratio | % | 25-45 |
| recovery rate | % | ≥ 25 |
| coefficient of friction | ≤ 0.15 | |
| abrasion loss | g | ≤ 0.1 |
| acid loss(5% sulfuracid) | % | ≤ 5 |
| alkali loss(25% NaOH) | % | - |
| alkali loss(5% NaOH) | % | ≤ 8 |
| Property | Parameter |
|---|---|
| maximum temperature | 260℃ |
| maximum linear velocity | 15m/s |
| PH range | 1-13 |
| pump pressure up to | 30kg/cm² |
| valve pressure up to | 250kg/cm² |
| Size(Packing cross-section) | 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 |
