Non Mettalic Gasket

Non-metallic gaskets, on the other hand, are usually made from composite sheet materials such as aramid fiber, glass fiber, or PTFE, and are used with flat-face and raised-face flanges in low-pressure applications. No metals are used in their construction.

Non Mettalic Gasket with standard profiling

Full-face non-metallic gaskets are suitable for use with flat-face flanges; flat-ring gaskets are used with raised-face flanges. Non-metallic gaskets — also called soft gaskets — are easily compressed under bolt load. Since they don’t contain metal, they offer superior corrosion resistance, but can only handle a limited range of temperature and pressure. Non-metallic gaskets are commonly used in pipe flanges, heat exchangers, compressors, and bonnet valves. These gaskets are available in a variety of cut shapes.

Non Mettalic Gasket Advantages

  • Very dense sealing material
  • Affordable and great availability
  • Adapts perfectly to the flange
  • No creeping
  • Easy to cut/punch to size
  • Extremely chemical resistant

Non Mettalic Gasket Available

  • Expanded PTFE sheet
  • Compressed non-asbestos sheet
  • Mica sheet
  • Flexible graphite sheet
  • Glass-filled/reprocessed PTFE sheet
  • Ceramic fiber
  • Elastomeric and fiber sheet
  • Biaxially oriented (filled) PTFE
  • (other on request)

Note: Metal selection is usually consistent with piping system.