You are here

Style G-700 Nuclear Grade Valve Stem Packing

Manufactured from the purest graphite filament yarns for use in critical valve applications, including nuclear and power generation.

Designed for critical valve applications, G-700 has been tested by independent laboratories and has successfully met the difficult specifications required by the power generation industry. No PTFE or lubricants are added - only graphite dispersion.


  • Very low coefficient of friction
  • Totally non-abrasive in valve applications
  • Ideal for critical valve applications (used as end rings only) in nuclear and power generation industries
  • Tested by independent laboratories
  • Excellent used as end rings (anti-extrusion) in combination sets with GRAPH-LOCK® material
  • Contains no PTFE or other lubricants
  • Totally non-abrasive; very low coefficient of friction
  • Will not fray


  • Max. Temperature:        850°F / -200°C
  • Max Valve Pressure:    4,000 psi / 276 bar


  • MIL-P-24583B (SH)
  • General Electric Spec. D50YP12 Rev. 2 dated October 1992


  • Nuclear Industry
  • Power Generation Industry
Find SDS and MSDS Documents