SOFT/ CUT GASKETS

FEATURE

    “SOFT GASKET” material is a term used when referring to a gasket material that is easily compressed under a low bolt load.

    A soft gasket material can be selected from a large variety of elastomers, CNAF (Compressed Non-Asbestos Fiber), PTFE (Teflon), Flexible Graphite and high temperature sheet products.

    It is used in wide range of applications such as for pipe flanges, heat exchangers, compressor, bonnet valves, etc

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COMPRESSED ASBESTOS FIBER GASKETS (CAF)

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    These gaskets find wide applications as it is simple to use and any shapes can be made in fraction of seconds as it is just cut from CAF sheets and thus it got named CUT gaskets.

    Commercial brands available in India are Champion, Superlite, Ferrolite, Klingerite, etc.

    It comes out with variety of grades such as, Oil grade, Acid Grade, metallic steel insertions, non-metallic in sheet form. Range of thickness available for these sheets varies from 0.5 mm to 5 mm and in special cases it can be even 8 mm thickness.

DESCRIPTION APPLICATION MAX TEMP MAX PR (KG/SQUARE CM)
General Asbestos joint General 300 to 450 deg C 30 to 40 bar
Oil-resistant asbestos joint sheett Oil resistance 400 to 500 deg C 30 to 40 bar
Acid-resistant asbestos joint sheet Acid resistance 400 to 500 deg C 30 to 40 bar
Wire reinforced asbestos joint sheet High pressure 400 to 500 deg C 40 to 60 bar

COMPRESSED NON ASBESTOS FIBER GASKETS (CNAF)

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    It is born to replace ASBESTOS products as Asbestos is ban in most of the European and western countries.

    However there have been enough problems to warrant careful consideration in choosing a replacement material for CAF (Compressed Asbestos Fiber).

    Most CNAF materials use synthetic fibers like aramid in conjunction with an elastomeric binder and this binder becomes more important consideration when determining applications.

    Simply speaking it is as good as CAF gaskets except free from asbestos content as asbestos are banned to take care of GREEN initiative.

DESCRIPTION APPLICATION MAX TEMP MAX PR (KG/SQUARE CM)
General Asbestos joint Water, alkali, saturated steam 150 to 180 deg C 30 bar
Heat resistant Non-Asbestos joint sheet Saturated steam, water, exhaust gas 200 deg C 30 bar
Non asbestos with SBR binder Fuels, oils, water, alkali 250 deg C 30 bar
Wire reinforced non-asbestos joint sheet High pressure 300 to 450 deg C 100 bar

     FLEXIBLE GRAPHITE GASKETS

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    Containing no resins or inorganic fillers; Available with or without metal insertion.

    It has outstanding resistance to corrosion against wide variety of acids, alkalis and salt solutions, organic compounds and heat transfer fluids, even at high temperatures.

    There are two proven products available with us namely, SOLID GRAPHITE RINGS/ PACKING RINGS and the other one is STEEL REINFORCED flexible graphite gaskets which are ideal for most of the sheet gasket applications.

    These sheets are available from 0.5 mm to 3 mm thickness

DESCRIPTION APPLICATION TEMPERATURE PRESSURE
Expanded graphite sheet High temperature, chemical resistance ~300 to ~ 1400 deg C 20 bar
Expanded graphite with stainless reinforced High creep strength, high sealing performance ~300 to ~800 deg C ~40 to ~50 bar

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