Magpie’s ultra-long-life, low-emission packing has recently been certified by TÜV Rheinland, successfully achieving ISO 15848-1 CC3 standards for linear control valves and quarter-turn pneumatic ball valves. The certification covers a 260°C operating temperature and 100,000-cycle switching life, marking a significant milestone in the international recognition of Magpie’s (Xi Que) technical excellence in control valve packing solutions.
In today’s digital era, control valve applications are becoming increasingly diverse and demanding, placing greater emphasis on the longevity and performance of packing seals. To address these evolving needs, Magpie’s engineering team has devoted years of research to understanding the intricate relationship between control valves and their packing systems, focusing on issues such as valve sticking and pneumatic actuator sealing failures that occur during extended operation.
During the development process, the team discovered that conventional low-emission packing—due to its high rigidity—is suitable only for manual on-off valves, which have mechanical stops during operation. In contrast, control valves operate continuously with linear or rotational motion, requiring superior friction resistance and wear durability. To meet these challenges, Magpie developed a specialized graphite packing with built-in buffering and friction absorption characteristics. This advanced packing offers exceptionally low torque and outstanding wear resistance, effectively eliminating sealing challenges during long-term control valve operation.
Constructed from high-grade flexible graphite, the packing operates reliably across a wide temperature range from -196°C to +300°C, ensuring consistent performance under extreme conditions. Moving forward, Magpie remains committed to expanding its R&D efforts, driving continuous innovation and technological advancement in control valve sealing solutions, and supporting the modernization of global industrial systems in the digital age.It's important to know about Google SEO to help your website rank higher in search results.
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