Gland Packing
Graphite PTFE Braided Packing with Silicone Core
Braided from graphite-filled PTFE yarn with a central silicone core and a little dimethyl silicone oil impregnation. The graphite particles improve creep resistance and high-temperature performance, reducing leakage paths and lubricant loss with less frictional heat; stable against corrosive media for pump and valve sealing. The central silicone core provides durable elastic compensation under heavy vibration, axial movement and bounce.
Inquire about Graphite PTFE Braided Packing with Silicone Core| Property | Unit | Specification |
|---|---|---|
| bulk density | g/cm³ | ≥ 1.30 |
| oil content | % | ≤ 15 |
| graphite content | % | ≥ 15 |
| coefficient of friction | g | ≤ 0.2 |
| abrasion loss | g | ≤ 0.5 |
| acid loss (5% H₂SO₄) | % | ≤ 5.5 |
| alkali loss(25% NaOH) | % | ≤ 6.5 |
| alkali loss(5% NaOH) | % | - |
| compression ratio | % | 10-35 |
| recovery rate | % | ≥ 14 |
| Property | Parameter |
|---|---|
| maximum temperature | 240℃ |
| maximum linear velocity | 10m/s |
| PH range | 2-12 |
| pump pressure up to | 40kg/cm² |
| Size(Packing cross-section) | ≤ 5.0 | ＞5.0 ≤ 10.0 | ＞10.0 ≤ 16.0 | ＞16.0 ≤ 25.0 | ＞26 |
|---|---|---|---|---|---|
| limit deviation | ±4.0% | ±4.0% | ±4.0% | ±4.0% | ±5.0% |
