Graphite packing rings are widely used in industries such as petrochemical, power generation, and metallurgy. Typical applications include pumps, valves, reactors, and other equipment that require sealing under high temperature and high pressure, especially when handling steam, strong acids and alkalis, and organic solvents.

Applications

Graphite packing rings are widely used in industries such as petrochemical, power generation, and metallurgy. Typical applications include pumps, valves, reactors, and other equipment that require sealing under high temperature and high pressure, especially when handling steam, strong acids and alkalis, and organic solvents.

Advantages

  • Excellent high-temperature resistance, operating stably from -200℃ up to +550℃ (even higher in non-oxidizing atmospheres).
  • Superior chemical resistance, suitable for most acids, alkalis, salts, and organic media.
  • Outstanding self-lubricating properties with a low friction coefficient, reducing wear on shafts and valve stems.
  • Reliable sealing performance, easy to install, can be used alone or reinforced with metal components for enhanced sealing.

Profiles

  • Carbon Purity
    Industrial grade ≥98%
    Nuclear grade ≥99.85%
  • Ash Content
    Max. 0.15%
  • Chlorides
    Max. 50ppm
  • Density
    1.60g/cc
  • Temperature
    -200℃~550℃ in oxidizing atmosphere
    -200℃~1500℃ in non-oxidizing atmosphere 
  • Pressure Max.
    Rotating 2Mpa
    Reciprocating 10Mpa
    Valve 100Mpa
  • Speed Max.
    Rotating 15m/s
    Reciprocating 2m/s
    Valve 2m/s