Garlock High Temperature Style 9900 Gasket Material

Style 9900

High Temp Gasketing
Graphite fibers with a nitrile binder.


Heat and oxidation resistance

  • Graphite fiber gasketing withstands extreme temperatures and pressures, as well as many chemicals
  • Passed Garlock Fire tests, and is ABS Fire Safe Type Approved

Long-lasting seal

  • Unique manufacturing process minimizes cold flow and creep relaxation problems


  • Ideal for standard ANSI flanged connectors, as well as turbine crossover piping connectors
  • Multiple applications in power generation, chemical processing, hydrocarbon processing, and other industries


  • Steam*, oils, grease, water, heat transfer fluids+

+Contact Hanna Rubber Company with specific transfer fluid application.

*Minimum recommended assembly stress = 4,800psi.  Preferred assembly stress = 6,000-10,000psi.  Gasket thickness of 1/16″ strongly preferred.  Retorque the bolts/studs prior to pressurizing the assembly.  For saturated steam above 150psig,

Min. Temperature:-100°F (-73°C)
Continuous Max:+650°F (+343°C)
Max Temperature:+1000°F (+537°C)
Max Pressure:2000 psig (138 bar)
Maximum PxT 1/16:700,000 (°F x PSIG)
Maximum PxT 1/8:350,000 (°F x PSIG)
ASTM F104F712102A9B3E22K9L401M5(4)


[text-with-icon icon_type=”font_icon” icon=”icon-download” color=”Accent-Color”]High Temperature Style 9900 Data Sheet[/text-with-icon]