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- Controller1 Evo VDI-2440
Controller One Evolution is the Valve Packing Low Emissions approved in accordance to VDI 2440. The formed expanded graphite rings are in the configuration Cup&Cone, molded with different bulk density with the flexible graphite Sigraflex® E (are available other styles as Z, APX and APX2). The wiper braided rings coming from the gland packing GR80SGR made with graphite yarns inhibited with oxidation retardant. This stem packing is widely installed in the refinery and petrochemicla valves frequently actuated in the pressure classes 150 and 300.