Flexible 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.
Supplied in a density range of 1.3g/cc to 1.8g/cc.
Available in 99.3% purity/corrosion inhibited and oxidation resistant grades
Supplied endless/split or as matched halves
Square or rectangular section rings supplied as standard
Non-standard shapes can be produced to suit specific requirements
Metal tipped rings available for high pressure anti extrusion applications
Graphite packing sleeves with or without stainless steel eyelets are available
In inert or reducing
- 200°C to + 2800°C
In oxidizing conditions
-200°C to + 500°C
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
Coefficient of Thermal
2 x 10-6/ °C parallel to surface
5 x 10-6/ °C perpendicular to surface
Typical Chemical Composition
< 4 ppm