Made of low-sulphur expanded graphite without any fillers or binders. They are compressed in precise moulding tools to the required density. Due to the high purity of the material (>98%), no special corrosion protection is required. In general, it has square section and also has V-shaped and wedge-shaped section, the rear two kinds style are suitable for high pressure sealing.
It has all properties of expanded graphite, can bear violent alteration of temperature and pressure. It is ideal packing for valves and static seal in almost all applications. Can be used as stand-alone packing or in combination high carbon fiber anti-extrusion packing rings, except when stems are severely damaged.
Material | 100% Expanded Graphite | |
---|---|---|
Pressure | Rotating | 10 bar |
Reciprocating | 50 bar | |
Static | 800 bar | |
Shaft Speed | 10 m/s | |
Density | 1.2-1.5g/cm³ | |
Temperature(Atmosphere) | -220~555℃ | |
Temperature(Non-oxidizing) | -200~2850℃ | |
PH Range | 0~14 |