Graphite rings are die formed compressed graphite rings. They are flexible and highly impermeable to gases and liquids. Advantage of graphite rings is long life with no hardening deformations. Installation and removal of graphite rings can be done without danger of damage on the sealing faces. Therefore they can be excellent substitute for some types of metal O-rings.
Graphite rings contains no adhesives or binders and has self lubricating properties and is therefore virtually maintenance free. Due to minimum leakage rates – with certain grades they can meet requirements of TA Luft and "Clean Air" regulations.