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Flexible Graphite Ring

Flexible Graphite RingFlexible Graphite Ring produced by Wealson is compressed with expanded graphite tape. It is also called Expanded Graphite Ring, Die-formed Graphite Ring, Flexible Graphite Moulded Ring. It keeps all the characteristics of flexible graphite.

Flexible Graphite Ring reinforced with ss304, steel mesh, nickel or platinum to enhance the compression resistance. It is used as sealing gasket, packing in all kinds of valves and pumps. These rings are well adapted to various media of hot water, high temperature and high pressure steam, heat-exchanging liquids, ammonia, hydrogen, organic solvents, hydrocarbons, low temperature liquids.

It is used as sealing gasket, packing in all kinds of valves and pumps.

These rings possess good resilience and chemical stability to be able to provide effective sealing function. Besides, they can be used together with other end ring. They are very stable and reliable, even if under awful working ircumstances. Frequently they are used with reinforced expanded graphite rings forming a complete set.

index_ic01 Supplied in a density range of 1.3g/cc to 1.8g/cc.
index_ic01 Available in 99.3% purity/corrosion inhibited and oxidation resistant grades


Supplied endless/split or as matched halves
index_ic01 Square or rectangular section rings supplied as standard
index_ic01 Non-standard shapes can be produced to suit specific requirements
index_ic01 Metal tipped rings available for high pressure anti extrusion applications
index_ic01 Graphite packing sleeves with or without stainless steel eyelets are available

Flexible Graphite Rings Data Sheet
In inert or reducing - 200°C to + 2800°C
In oxidizing conditions -200°C to + 500°C
Tensile strength 5.2Mpa
Compressibility 47%
Recovery 15%
Electrical Resistivity 900 x 10-6 ohm cm parallel to surface
250000 x 10-6 ohm cm perpendicular
To surface 120 kcal / m. Hr. °C. Parallel
To surface 4 kcal / m. Hr. °C. Perpendicular
To surface
Coefficient of Thermal
Expansion 2 x 10-6/ °C parallel to surface
5 x 10-6/ °C perpendicular to surface
Typical Chemical Composition
Chloride content < 4 ppm
Fluoride content < 8ppm
Ash content 0.5 %