Pure Graphite Packing Ring

Graphite ring(expanded) 1.expanded graphite sealing material 2. it can withstand heavily alternating temperature and pressure

Graphite ring

Expanded graphite ring

for high temperature valve applications

Graphite ring is characterised by a high level of chemical resistance and thermal stability as well as excellent sealing effect and constant elasticity.Regardless of temperature cycle this material is not subject to cold flow, shrinkage or ageing.Graphite ring fulfils the purity requirements for seals in nuclear power station valves (content of soluble chlorides < 20ppm). Also available with corrosion inhibitor.

Application LimitsP           steam                         1000 bar2             14300 psi2*T     most media and air           -200..+550°C1        -328..+1022°F1             steam                       -200..+700°C2         -328..+1292°F2           inert gas                     -200..+2550°C3        -328..+4532°F3pH                                            0.. 14                         0.. 14

MediaHot water, feed water, steam,heat transfer oils, hydrocarbonsand many other media.(Exception: heavily oxidizingmedia).

Pure Graphite Packing Ring