TA LUFT VDI 2440 approved.
Controller 3 Evolution it’s a special valve graphite packing composed by formed braided rings. The braided packing is manufactured with flexible graphite Sigraflex® strands impregnated one by one with a special compound of colloidal graphite, reach of passive inhibitor of corrosion and solid lubricants (suitable also in Dry style for Oxygen use). This packing guarantees a very low weight loss (requirement EN 14772, section 6.7) and great sliding property. Controller 3, that meets the Low Emission VDI 2440 requirements, is able to preserve for a long time the recovery and the sealing performance without retightening.
Formed rings of braided flexible graphite Sigraflex® strands with Inconel® reinforcement, impregnated with colloidal graphite and special compound
Controller 3 Evolution is specific for Low Emission and HP/HT services of Industrial Valves.