EPDM packing
Packing is designed for non-aggressive media with temperature from 0^o to 140^oC. Packing excels with its reliability and long time tightness. It has ability of sealing even if the valve stem is a bit damaged. Low frictional forces enables valve to be actuated with a low-linear-force actuator. Service life of sealing rings depends on operating conditions and it is more than 400 000 for valves series RV 102 and RV 103 cycles on average and more than 500 000 cycles for the valves 200 line.