Composition
Controller 3 Evolution OXY it’s a special valve graphite packing composed by formed braided rings of ZGR80SGR OXY. The braided packing is manufactured with flexible graphite strands. This packing guarantees a very low weight loss (requirement EN 14772, section 6.7) and great sliding property. The packing is BAM approved no. 2-28/2015 E for Liquid and Gaseous Oxygen Service.Behaviour with pure oxygen:
Up to temperature of 500°C no ignition of the graphite packing has been detected in five tests with final oxygen pressure of 262 bar.
At the temperature of 225°C and pressure of 260 bar the graphite packing proved to be aging resistant.
Up to temperature of 500°C no ignition of AGED graphite packing ZGR80SGR OXY has been detected in five tests with final oxygen pressure of 262 bar.
This shows that as the non-aged sample also the aged sample did not ignite at the temperature of 500°C
Characteristics
Pure graphiteApplications
Graphite packing BAM approved for either for valve liquid and gaseous oxygen services