Magpie's ultra-long-life, low-emission packing has recently achieved a significant milestone, earning the ISO 15848-1 CC3 certification for 260°C temperature resistance and 100,000-cycle switch life from TÜV Rheinland. This recognition highlights Magpie's technical leadership in the field of control valve packing, particularly in the performance of linear control valves and quarter-turn pneumatic ball valves.
With the increasing complexity of control valve applications in the digital era, the need for more durable and high-performance packing seals has never been more critical. Magpie has consistently focused on enhancing packing technology to address issues like valve sticking and pneumatic head sealing failure—common challenges in long-life control valve operation.
During the research and development phase, we identified a critical issue with conventional low-emission packing: its excessive rigidity, which makes it suitable primarily for manual on-off valves. Manual on-off valves feature a stop mechanism in their opening and closing cycles, while control valves operate with continuous linear motion without such stops. This difference requires control valves to have packing that offers superior friction resistance and wear resistance for long-term performance.
To meet this need, Magpie has developed a graphite packing with buffering and friction absorption capabilities. This innovation ensures the packing delivers extremely low torque and exceptional wear resistance, addressing the sealing challenges in control valves operating over extended periods.
Our flexible graphite material allows the packing to perform effectively in temperatures ranging from -196°C to +300°C, making it suitable for a wide range of extreme operating conditions. This breakthrough provides reliable sealing and helps ensure the stable operation of control valves in demanding environments.
Looking to the future, Magpie is committed to continuing its investment in R&D, driving further innovations in control valve packing technology, and contributing to the advancement of the industrial sector in the digital age.
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