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Gaskets and Sheet Jointings

CNAF gaskets

A range of highly proven non-asbestos rubber-bonded gasket materials made from aramid fibres and special fillers. These sheet materials can be cut to any size or shape that covers flange gasket duties with most fluid media from ASME Class 150 to Class 600 ratings, plus some special applications.



Centurion® X - High performance sheet jointing

Centurion XCenturion X is a high performance BS7531 Grade X sheet jointing, based on glass and aramid fibres with a nitrile (NBR) binder.

  • Glass and aramid fibres with a nitrile binder
  • For applications up to 450°C
  • Media compatibility with oils, fuels and hydrocarbon compounds
  • Can be used on the majority of flange specifications including ASME, API, EN, BS and DIN
  • Meets BS 7531 Grade X requirements

This material supersedes the previous James Walker Centurion gasket sheet, which remains available on request for instances where it may currently be written into specifications.

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Chieftain® X - Our premium grade universal sheet jointing

Chieftain XChieftain X is a high performance BS7531 Grade X sheet jointing, based on graphite reinforced with aramid fibres with a nitrile (NBR) binder. The unique blend of aramid fibres and graphite results in a gasket material with exceptional leakage resistance and residual stress levels.

  • A unique blend of graphite and aramid fibres for strength and durability
  • A soft cut gasket for extreme applications in general industry
  • 450°C maximum working temperature
  • Outstanding resistance to acids, alkalis, solvents, refrigerants, water and steam
  • Easily meets BS 7531 Grade X requirements

This material supersedes the previous James Walker Chieftain gasket sheet, which remains available on request for instances where it may currently be written into specifications.

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Sentinel® X - Our general purpose jointing

Sentinel XSentinel X is James Walker’s general purpose BS7531 Grade Y sheet jointing. It is comprised of compressed aramid fibres and a combination of other functional fibres with a nitrile (NBR) rubber binder.

  • Compressed aramid fibre with nitrile binder
  • Outstanding performance for its class
  • 400°C maximum working temperature
  • Resistant to solvents, refrigerants, water and steam
  • Exceeds BS 7531 Grade Y requirements

This material supersedes the previous James Walker Sentinel gasket sheet, which remains available on request for instances where it may currently be written into specifications.

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