CRITICAL SERVICE

  • ABOUT
  • FEATURES AND BENEFITS
  • SPECIFICATIONS
  • APPLICATIONS
  • ADDITIONAL INFORMATION
Garlock style 1398 is a nuclear grade braided flexible graphite valve stem packing.

The graphite-containing INCONEL® filament reinforces the packing to handle BWR (General Electric) and PWR (Westinghouse, Combustion Engineering, and Babcock Wilcox) valve service conditions as an end-ring material for use with other graphite products. Style 1398 can also be used as a bushing material in the bottom of the stuffing box to fill any excess depth not needed for sealing components.

      • High-purity graphite, contains no PTFE
      • Suitable material for end rings or as a bushing to fill excess stuffing box depth
      • Garlock style 1398 can be certified to GE Spec. D50YP12 Rev. 2
      •  
  • Min. Temperature:        -328°F / -200°C
  • Max. Temperature:        850°F / 455°C
  • Max. Valve Pressure:     3,000 psi / 206.8 bar
  • Nuclear Grade

INCONEL is a registered trademark of Huntington Alloys Corporation.

  • ABOUT
  • FEATURES AND BENEFITS
  • SPECIFICATIONS
  • APPLICATIONS
  • CERTIFICATIONS
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
  • Nuclear Industry
  • Power Generation Industry
  • MIL-P-24583B (SH)
  • General Electric Spec. D50YP12 Rev. 2 dated October 1992