喜鹊密封件

Magpie Valve is a research-driven leader in industrial valves, packing, gaskets, and seal kits, committed to advancing valve technology through materials science, precision engineering, and third-party-verified performance. Our mission is to redefine industrial valve reliability by focusing on the critical factors that influence sealing performance—the true bottlenecks in achieving high-performance valves.

While large-scale machining is now a standard capability in China’s valve industry, we have concentrated on areas often overlooked: the mechanical behavior of non-metallic materials, advanced coating techniques for sealing components, and the study of friction and wear mechanisms. These efforts ensure that our valves deliver exceptional durability and leak-tight performance under demanding conditions.

Our multidisciplinary team—comprising nuclear-grade sealing engineers, valve specialists, materials scientists, and electromechanical engineers—combines academic insight with industrial expertise. Through collaborations with leading institutions such as Lanzhou University of Technology’s National Key Friction Laboratory, Ningbo Institute of Materials, East China University of Science and Technology, and the Shanghai Institute of Ceramics, we have conducted in-depth research on low-leakage graphite sealing technologies, systematically identifying and resolving the root causes of sealing failure.

Magpie Valve holds multiple internationally recognized certifications, including API 622, API 624, API 641, ISO 15848-1, TA-LUFT, and ISO 15848-1 CC3. Nearly 500 valve products—from gate and globe valves to ball valves—have been rigorously tested under extreme conditions, with temperatures ranging from -196°C to 400°C and pressures up to Class 2500 LB. These achievements not only ensure full compliance with global standards but also set new benchmarks for reliability, safety, and innovation in valve manufacturing.

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