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Composition PAN graphite yarns Colloidal graphite Passive inhibitor of corrosion Features GR8800 Carbograph Special is a PAN graphite yarns packing able to seal the Industrial Valves working with the main fluids, ensuring LONG LIFE FIRE SAFE STEM CORROSION PROTECTION GR8800 CARBOGRAPH SPECIAL is a packing that offers great recovery, stable for a long time because the PAN fibres are aging resistant. Suitable also in the style GR8800R with Inconel® wire and as moulded rings ready to use. Applications Suitable with all fluids and gases, excluded the strong oxidizers. The service's temperature has to be less than 450°C with mild oxidizers and hot air. Avoid the hot combustion gases.
| P bar | Ibf/in2 | Vm/S | f/pm | pH | T °C | T°F |
| 300 | 4500 | 20 | 4000 | 0-14(3) | -100 ÷ 450(1) / 650(2) | -150 ÷ 840(1) 1200(2) |